Mercurial > hg > xemacs-beta
annotate src/bytecode.c @ 5008:cad59a0a3b19
Add license information from Marcus Thiessel.
See xemacs-beta message <20100208091453.25900@gmx.net>.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Tue, 09 Feb 2010 09:50:49 -0700 |
| parents | fe0d3106cc36 |
| children | 99f8ebc082d9 ed624ab64583 b5df3737028a |
| rev | line source |
|---|---|
| 428 | 1 /* Execution of byte code produced by bytecomp.el. |
| 2 Implementation of compiled-function objects. | |
| 3 Copyright (C) 1992, 1993 Free Software Foundation, Inc. | |
| 814 | 4 Copyright (C) 1995, 2002 Ben Wing. |
| 428 | 5 |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Mule 2.0, FSF 19.30. */ | |
| 24 | |
| 25 /* This file has been Mule-ized. */ | |
| 26 | |
| 27 | |
| 28 /* Authorship: | |
| 29 | |
| 30 FSF: long ago. | |
| 31 | |
| 32 hacked on by jwz@jwz.org 1991-06 | |
| 33 o added a compile-time switch to turn on simple sanity checking; | |
| 34 o put back the obsolete byte-codes for error-detection; | |
| 35 o added a new instruction, unbind_all, which I will use for | |
| 36 tail-recursion elimination; | |
| 37 o made temp_output_buffer_show be called with the right number | |
| 38 of args; | |
| 39 o made the new bytecodes be called with args in the right order; | |
| 40 o added metering support. | |
| 41 | |
| 42 by Hallvard: | |
| 43 o added relative jump instructions; | |
| 44 o all conditionals now only do QUIT if they jump. | |
| 45 | |
| 46 Ben Wing: some changes for Mule, 1995-06. | |
| 47 | |
| 48 Martin Buchholz: performance hacking, 1998-09. | |
| 49 See Internals Manual, Evaluation. | |
| 50 */ | |
| 51 | |
| 52 #include <config.h> | |
| 53 #include "lisp.h" | |
| 54 #include "backtrace.h" | |
| 55 #include "buffer.h" | |
| 56 #include "bytecode.h" | |
| 57 #include "opaque.h" | |
| 58 #include "syntax.h" | |
| 872 | 59 #include "window.h" |
| 428 | 60 |
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61 #define NUM_REMEMBERED_BYTE_OPS 100 |
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62 |
| 3092 | 63 #ifdef NEW_GC |
| 64 static Lisp_Object | |
| 65 make_compiled_function_args (int totalargs) | |
| 66 { | |
| 67 Lisp_Compiled_Function_Args *args; | |
| 68 args = (Lisp_Compiled_Function_Args *) | |
| 69 alloc_lrecord | |
| 70 (FLEXIBLE_ARRAY_STRUCT_SIZEOF (Lisp_Compiled_Function_Args, | |
| 71 Lisp_Object, args, totalargs), | |
| 72 &lrecord_compiled_function_args); | |
| 73 args->size = totalargs; | |
| 74 return wrap_compiled_function_args (args); | |
| 75 } | |
| 76 | |
| 77 static Bytecount | |
| 78 size_compiled_function_args (const void *lheader) | |
| 79 { | |
| 80 return FLEXIBLE_ARRAY_STRUCT_SIZEOF (Lisp_Compiled_Function_Args, | |
| 81 Lisp_Object, args, | |
| 82 ((Lisp_Compiled_Function_Args *) | |
| 83 lheader)->size); | |
| 84 } | |
| 85 | |
| 86 static const struct memory_description compiled_function_args_description[] = { | |
| 87 { XD_LONG, offsetof (Lisp_Compiled_Function_Args, size) }, | |
| 88 { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Compiled_Function_Args, args), | |
| 89 XD_INDIRECT(0, 0) }, | |
| 90 { XD_END } | |
| 91 }; | |
| 92 | |
| 93 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("compiled-function-args", | |
| 94 compiled_function_args, | |
| 95 1, /*dumpable-flag*/ | |
| 96 0, 0, 0, 0, 0, | |
| 97 compiled_function_args_description, | |
| 98 size_compiled_function_args, | |
| 99 Lisp_Compiled_Function_Args); | |
| 100 #endif /* NEW_GC */ | |
| 101 | |
| 428 | 102 EXFUN (Ffetch_bytecode, 1); |
| 103 | |
| 104 Lisp_Object Qbyte_code, Qcompiled_functionp, Qinvalid_byte_code; | |
| 105 | |
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106 |
| 428 | 107 enum Opcode /* Byte codes */ |
| 108 { | |
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109 #define OPCODE(sym, val) B##sym = val, |
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110 #include "bytecode-ops.h" |
| 428 | 111 }; |
| 112 typedef enum Opcode Opcode; | |
| 113 | |
| 114 Lisp_Object * execute_rare_opcode (Lisp_Object *stack_ptr, | |
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115 #ifdef ERROR_CHECK_BYTE_CODE |
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116 Lisp_Object *stack_beg, |
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117 Lisp_Object *stack_end, |
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118 #endif /* ERROR_CHECK_BYTE_CODE */ |
| 442 | 119 const Opbyte *program_ptr, |
| 428 | 120 Opcode opcode); |
| 121 | |
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122 #ifndef ERROR_CHECK_BYTE_CODE |
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123 |
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124 /* Normally we would use `x' instead of `0' in the argument list, to avoid |
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125 problems if `x' (an expression) has side effects, and warnings if `x' |
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126 contains variables or parameters that are otherwise unused. But in |
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127 this case `x' contains references to vars and params that exist only |
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128 when ERROR_CHECK_BYTE_CODE, and leaving in `x' would result in compile |
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129 errors. */ |
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130 # define bytecode_assert(x) disabled_assert (0) |
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131 # define bytecode_assert_with_message(x, msg) disabled_assert(0) |
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132 # define bytecode_abort_with_message(msg) abort_with_message (msg) |
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133 |
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134 #else /* ERROR_CHECK_BYTE_CODE */ |
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135 |
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136 # define bytecode_assert(x) \ |
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137 ((x) ? (void) 0 : assert_failed_with_remembered_ops (__FILE__, __LINE__, #x)) |
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138 # define bytecode_assert_with_message(x, msg) \ |
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139 ((x) ? (void) 0 : assert_failed_with_remembered_ops (__FILE__, __LINE__, msg)) |
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140 # define bytecode_abort_with_message(msg) \ |
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141 assert_failed_with_remembered_ops (__FILE__, __LINE__, msg) |
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142 |
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143 /* Table mapping opcodes to their names. This handles opcodes like |
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144 Bvarref+7, but it doesn't list any of the Bconstant+N opcodes; those |
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145 are handled specially. */ |
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146 Ascbyte *opcode_name_table[256]; |
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147 |
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148 /* Circular queue remembering the most recent operations. */ |
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149 Opcode remembered_ops[NUM_REMEMBERED_BYTE_OPS]; |
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150 int remembered_op_next_pos, num_remembered; |
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151 |
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152 static void |
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153 remember_operation (Opcode op) |
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154 { |
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155 remembered_ops[remembered_op_next_pos] = op; |
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156 remembered_op_next_pos = |
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157 (remembered_op_next_pos + 1) % NUM_REMEMBERED_BYTE_OPS; |
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158 if (num_remembered < NUM_REMEMBERED_BYTE_OPS) |
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159 num_remembered++; |
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160 } |
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161 |
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162 static void |
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163 assert_failed_with_remembered_ops (const Ascbyte *file, int line, |
| 4970 | 164 const Ascbyte *msg_to_abort_with) |
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165 { |
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166 Ascbyte *msg = |
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167 alloca_array (Ascbyte, |
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168 NUM_REMEMBERED_BYTE_OPS*50 + strlen (msg_to_abort_with)); |
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169 int i; |
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170 |
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171 if (msg_to_abort_with) |
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172 strcpy (msg, msg_to_abort_with); |
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173 strcat (msg, "\n\nRecent bytecodes, oldest first:\n\n"); |
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174 |
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175 for (i = 0; i < num_remembered; i++) |
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176 { |
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177 Ascbyte msg2[50]; |
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178 int pos; |
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179 Opcode op; |
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180 |
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181 sprintf (msg2, "%5d: ", i - num_remembered + 1); |
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182 strcat (msg, msg2); |
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183 pos = (remembered_op_next_pos + NUM_REMEMBERED_BYTE_OPS + |
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184 i - num_remembered) % NUM_REMEMBERED_BYTE_OPS; |
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185 op = remembered_ops[pos]; |
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186 if (op >= Bconstant) |
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187 { |
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188 sprintf (msg2, "constant+%d", op - Bconstant); |
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189 strcat (msg, msg2); |
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190 } |
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191 else |
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192 { |
| 4970 | 193 const Ascbyte *opname = opcode_name_table[op]; |
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194 if (!opname) |
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195 { |
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196 stderr_out ("Internal error! NULL pointer in opcode_name_table, opcode %d\n", op); |
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197 strcat (msg, "NULL"); |
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198 } |
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199 else |
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200 strcat (msg, opname); |
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201 } |
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202 sprintf (msg2, " (%d)\n", op); |
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203 strcat (msg, msg2); |
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204 } |
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205 |
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206 assert_failed (file, line, msg); |
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207 } |
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208 |
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209 #endif /* ERROR_CHECK_BYTE_CODE */ |
| 428 | 210 |
| 211 | |
| 212 #ifdef BYTE_CODE_METER | |
| 213 | |
| 214 Lisp_Object Vbyte_code_meter, Qbyte_code_meter; | |
| 215 int byte_metering_on; | |
| 216 | |
| 217 static void | |
| 218 meter_code (Opcode prev_opcode, Opcode this_opcode) | |
| 219 { | |
| 220 if (byte_metering_on) | |
| 221 { | |
| 222 Lisp_Object *p = XVECTOR_DATA (XVECTOR_DATA (Vbyte_code_meter)[this_opcode]); | |
| 223 p[0] = INT_PLUS1 (p[0]); | |
| 224 if (prev_opcode) | |
| 225 p[prev_opcode] = INT_PLUS1 (p[prev_opcode]); | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 #endif /* BYTE_CODE_METER */ | |
| 230 | |
| 231 | |
| 232 static Lisp_Object | |
| 233 bytecode_negate (Lisp_Object obj) | |
| 234 { | |
| 235 retry: | |
| 236 | |
| 1983 | 237 if (INTP (obj)) return make_integer (- XINT (obj)); |
| 428 | 238 if (FLOATP (obj)) return make_float (- XFLOAT_DATA (obj)); |
| 1983 | 239 if (CHARP (obj)) return make_integer (- ((int) XCHAR (obj))); |
| 240 if (MARKERP (obj)) return make_integer (- ((int) marker_position (obj))); | |
| 241 #ifdef HAVE_BIGNUM | |
| 242 if (BIGNUMP (obj)) BIGNUM_ARITH_RETURN (obj, neg); | |
| 243 #endif | |
| 244 #ifdef HAVE_RATIO | |
| 245 if (RATIOP (obj)) RATIO_ARITH_RETURN (obj, neg); | |
| 246 #endif | |
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247 #ifdef HAVE_BIGFLOAT |
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248 if (BIGFLOATP (obj)) BIGFLOAT_ARITH_RETURN (obj, neg); |
| 1983 | 249 #endif |
| 428 | 250 |
| 251 obj = wrong_type_argument (Qnumber_char_or_marker_p, obj); | |
| 252 goto retry; | |
| 253 } | |
| 254 | |
| 255 static Lisp_Object | |
| 256 bytecode_nreverse (Lisp_Object list) | |
| 257 { | |
| 258 REGISTER Lisp_Object prev = Qnil; | |
| 259 REGISTER Lisp_Object tail = list; | |
| 260 | |
| 261 while (!NILP (tail)) | |
| 262 { | |
| 263 REGISTER Lisp_Object next; | |
| 264 CHECK_CONS (tail); | |
| 265 next = XCDR (tail); | |
| 266 XCDR (tail) = prev; | |
| 267 prev = tail; | |
| 268 tail = next; | |
| 269 } | |
| 270 return prev; | |
| 271 } | |
| 272 | |
| 273 | |
| 274 /* We have our own two-argument versions of various arithmetic ops. | |
| 275 Only two-argument arithmetic operations have their own byte codes. */ | |
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276 int |
| 428 | 277 bytecode_arithcompare (Lisp_Object obj1, Lisp_Object obj2) |
| 278 { | |
| 1983 | 279 #ifdef WITH_NUMBER_TYPES |
| 280 switch (promote_args (&obj1, &obj2)) | |
| 281 { | |
| 282 case FIXNUM_T: | |
| 283 { | |
| 284 EMACS_INT ival1 = XREALINT (obj1), ival2 = XREALINT (obj2); | |
| 285 return ival1 < ival2 ? -1 : ival1 > ival2 ? 1 : 0; | |
| 286 } | |
| 287 #ifdef HAVE_BIGNUM | |
| 288 case BIGNUM_T: | |
| 289 return bignum_cmp (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2)); | |
| 290 #endif | |
| 291 #ifdef HAVE_RATIO | |
| 292 case RATIO_T: | |
| 293 return ratio_cmp (XRATIO_DATA (obj1), XRATIO_DATA (obj2)); | |
| 294 #endif | |
| 1995 | 295 #ifdef HAVE_BIGFLOAT |
| 296 case BIGFLOAT_T: | |
| 297 return bigfloat_cmp (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2)); | |
| 298 #endif | |
| 299 default: /* FLOAT_T */ | |
| 1983 | 300 { |
| 301 double dval1 = XFLOAT_DATA (obj1), dval2 = XFLOAT_DATA (obj2); | |
| 302 return dval1 < dval2 ? -1 : dval1 > dval2 ? 1 : 0; | |
| 303 } | |
| 304 } | |
| 305 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 306 retry: |
| 307 | |
| 308 { | |
| 309 EMACS_INT ival1, ival2; | |
| 310 | |
| 311 if (INTP (obj1)) ival1 = XINT (obj1); | |
| 312 else if (CHARP (obj1)) ival1 = XCHAR (obj1); | |
| 313 else if (MARKERP (obj1)) ival1 = marker_position (obj1); | |
| 314 else goto arithcompare_float; | |
| 315 | |
| 316 if (INTP (obj2)) ival2 = XINT (obj2); | |
| 317 else if (CHARP (obj2)) ival2 = XCHAR (obj2); | |
| 318 else if (MARKERP (obj2)) ival2 = marker_position (obj2); | |
| 319 else goto arithcompare_float; | |
| 320 | |
| 321 return ival1 < ival2 ? -1 : ival1 > ival2 ? 1 : 0; | |
| 322 } | |
| 323 | |
| 324 arithcompare_float: | |
| 325 | |
| 326 { | |
| 327 double dval1, dval2; | |
| 328 | |
| 329 if (FLOATP (obj1)) dval1 = XFLOAT_DATA (obj1); | |
| 330 else if (INTP (obj1)) dval1 = (double) XINT (obj1); | |
| 331 else if (CHARP (obj1)) dval1 = (double) XCHAR (obj1); | |
| 332 else if (MARKERP (obj1)) dval1 = (double) marker_position (obj1); | |
| 333 else | |
| 334 { | |
| 335 obj1 = wrong_type_argument (Qnumber_char_or_marker_p, obj1); | |
| 336 goto retry; | |
| 337 } | |
| 338 | |
| 339 if (FLOATP (obj2)) dval2 = XFLOAT_DATA (obj2); | |
| 340 else if (INTP (obj2)) dval2 = (double) XINT (obj2); | |
| 341 else if (CHARP (obj2)) dval2 = (double) XCHAR (obj2); | |
| 342 else if (MARKERP (obj2)) dval2 = (double) marker_position (obj2); | |
| 343 else | |
| 344 { | |
| 345 obj2 = wrong_type_argument (Qnumber_char_or_marker_p, obj2); | |
| 346 goto retry; | |
| 347 } | |
| 348 | |
| 349 return dval1 < dval2 ? -1 : dval1 > dval2 ? 1 : 0; | |
| 350 } | |
| 1983 | 351 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 352 } |
| 353 | |
| 354 static Lisp_Object | |
| 355 bytecode_arithop (Lisp_Object obj1, Lisp_Object obj2, Opcode opcode) | |
| 356 { | |
| 1983 | 357 #ifdef WITH_NUMBER_TYPES |
| 358 switch (promote_args (&obj1, &obj2)) | |
| 359 { | |
| 360 case FIXNUM_T: | |
| 361 { | |
| 362 EMACS_INT ival1 = XREALINT (obj1), ival2 = XREALINT (obj2); | |
| 363 switch (opcode) | |
| 364 { | |
| 365 case Bplus: ival1 += ival2; break; | |
| 366 case Bdiff: ival1 -= ival2; break; | |
| 367 case Bmult: | |
| 368 #ifdef HAVE_BIGNUM | |
| 369 /* Due to potential overflow, we compute using bignums */ | |
| 370 bignum_set_long (scratch_bignum, ival1); | |
| 371 bignum_set_long (scratch_bignum2, ival2); | |
| 372 bignum_mul (scratch_bignum, scratch_bignum, scratch_bignum2); | |
| 373 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 374 #else | |
| 375 ival1 *= ival2; break; | |
| 376 #endif | |
| 377 case Bquo: | |
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378 if (ival2 == 0) |
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379 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 1983 | 380 ival1 /= ival2; |
| 381 break; | |
| 382 case Bmax: if (ival1 < ival2) ival1 = ival2; break; | |
| 383 case Bmin: if (ival1 > ival2) ival1 = ival2; break; | |
| 384 } | |
| 385 return make_integer (ival1); | |
| 386 } | |
| 387 #ifdef HAVE_BIGNUM | |
| 388 case BIGNUM_T: | |
| 389 switch (opcode) | |
| 390 { | |
| 391 case Bplus: | |
| 392 bignum_add (scratch_bignum, XBIGNUM_DATA (obj1), | |
| 393 XBIGNUM_DATA (obj2)); | |
| 394 break; | |
| 395 case Bdiff: | |
| 396 bignum_sub (scratch_bignum, XBIGNUM_DATA (obj1), | |
| 397 XBIGNUM_DATA (obj2)); | |
| 398 break; | |
| 399 case Bmult: | |
| 400 bignum_mul (scratch_bignum, XBIGNUM_DATA (obj1), | |
| 401 XBIGNUM_DATA (obj2)); | |
| 402 break; | |
| 403 case Bquo: | |
| 404 if (bignum_sign (XBIGNUM_DATA (obj2)) == 0) | |
|
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405 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 1983 | 406 bignum_div (scratch_bignum, XBIGNUM_DATA (obj1), |
| 407 XBIGNUM_DATA (obj2)); | |
| 408 break; | |
| 409 case Bmax: | |
| 410 return bignum_gt (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2)) | |
| 411 ? obj1 : obj2; | |
| 412 case Bmin: | |
| 413 return bignum_lt (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2)) | |
| 414 ? obj1 : obj2; | |
| 415 } | |
| 416 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 417 #endif | |
| 418 #ifdef HAVE_RATIO | |
| 419 case RATIO_T: | |
| 420 switch (opcode) | |
| 421 { | |
| 422 case Bplus: | |
| 423 ratio_add (scratch_ratio, XRATIO_DATA (obj1), XRATIO_DATA (obj2)); | |
| 424 break; | |
| 425 case Bdiff: | |
| 426 ratio_sub (scratch_ratio, XRATIO_DATA (obj1), XRATIO_DATA (obj2)); | |
| 427 break; | |
| 428 case Bmult: | |
| 429 ratio_mul (scratch_ratio, XRATIO_DATA (obj1), XRATIO_DATA (obj2)); | |
| 430 break; | |
| 431 case Bquo: | |
| 432 if (ratio_sign (XRATIO_DATA (obj2)) == 0) | |
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433 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 1983 | 434 ratio_div (scratch_ratio, XRATIO_DATA (obj1), XRATIO_DATA (obj2)); |
| 435 break; | |
| 436 case Bmax: | |
| 437 return ratio_gt (XRATIO_DATA (obj1), XRATIO_DATA (obj2)) | |
| 438 ? obj1 : obj2; | |
| 439 case Bmin: | |
| 440 return ratio_lt (XRATIO_DATA (obj1), XRATIO_DATA (obj2)) | |
| 441 ? obj1 : obj2; | |
| 442 } | |
| 443 return make_ratio_rt (scratch_ratio); | |
| 444 #endif | |
| 445 #ifdef HAVE_BIGFLOAT | |
| 446 case BIGFLOAT_T: | |
| 447 bigfloat_set_prec (scratch_bigfloat, max (XBIGFLOAT_GET_PREC (obj1), | |
| 448 XBIGFLOAT_GET_PREC (obj2))); | |
| 449 switch (opcode) | |
| 450 { | |
| 451 case Bplus: | |
| 452 bigfloat_add (scratch_bigfloat, XBIGFLOAT_DATA (obj1), | |
| 453 XBIGFLOAT_DATA (obj2)); | |
| 454 break; | |
| 455 case Bdiff: | |
| 456 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (obj1), | |
| 457 XBIGFLOAT_DATA (obj2)); | |
| 458 break; | |
| 459 case Bmult: | |
| 460 bigfloat_mul (scratch_bigfloat, XBIGFLOAT_DATA (obj1), | |
| 461 XBIGFLOAT_DATA (obj2)); | |
| 462 break; | |
| 463 case Bquo: | |
| 464 if (bigfloat_sign (XBIGFLOAT_DATA (obj2)) == 0) | |
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465 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 1983 | 466 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (obj1), |
| 467 XBIGFLOAT_DATA (obj2)); | |
| 468 break; | |
| 469 case Bmax: | |
| 470 return bigfloat_gt (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2)) | |
| 471 ? obj1 : obj2; | |
| 472 case Bmin: | |
| 473 return bigfloat_lt (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2)) | |
| 474 ? obj1 : obj2; | |
| 475 } | |
| 476 return make_bigfloat_bf (scratch_bigfloat); | |
| 477 #endif | |
| 1995 | 478 default: /* FLOAT_T */ |
| 479 { | |
| 480 double dval1 = XFLOAT_DATA (obj1), dval2 = XFLOAT_DATA (obj2); | |
| 481 switch (opcode) | |
| 482 { | |
| 483 case Bplus: dval1 += dval2; break; | |
| 484 case Bdiff: dval1 -= dval2; break; | |
| 485 case Bmult: dval1 *= dval2; break; | |
| 486 case Bquo: | |
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487 if (dval2 == 0.0) |
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488 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 1995 | 489 dval1 /= dval2; |
| 490 break; | |
| 491 case Bmax: if (dval1 < dval2) dval1 = dval2; break; | |
| 492 case Bmin: if (dval1 > dval2) dval1 = dval2; break; | |
| 493 } | |
| 494 return make_float (dval1); | |
| 495 } | |
| 1983 | 496 } |
| 497 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 498 EMACS_INT ival1, ival2; |
| 499 int float_p; | |
| 500 | |
| 501 retry: | |
| 502 | |
| 503 float_p = 0; | |
| 504 | |
| 505 if (INTP (obj1)) ival1 = XINT (obj1); | |
| 506 else if (CHARP (obj1)) ival1 = XCHAR (obj1); | |
| 507 else if (MARKERP (obj1)) ival1 = marker_position (obj1); | |
| 508 else if (FLOATP (obj1)) ival1 = 0, float_p = 1; | |
| 509 else | |
| 510 { | |
| 511 obj1 = wrong_type_argument (Qnumber_char_or_marker_p, obj1); | |
| 512 goto retry; | |
| 513 } | |
| 514 | |
| 515 if (INTP (obj2)) ival2 = XINT (obj2); | |
| 516 else if (CHARP (obj2)) ival2 = XCHAR (obj2); | |
| 517 else if (MARKERP (obj2)) ival2 = marker_position (obj2); | |
| 518 else if (FLOATP (obj2)) ival2 = 0, float_p = 1; | |
| 519 else | |
| 520 { | |
| 521 obj2 = wrong_type_argument (Qnumber_char_or_marker_p, obj2); | |
| 522 goto retry; | |
| 523 } | |
| 524 | |
| 525 if (!float_p) | |
| 526 { | |
| 527 switch (opcode) | |
| 528 { | |
| 529 case Bplus: ival1 += ival2; break; | |
| 530 case Bdiff: ival1 -= ival2; break; | |
| 531 case Bmult: ival1 *= ival2; break; | |
| 532 case Bquo: | |
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533 if (ival2 == 0) |
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534 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 428 | 535 ival1 /= ival2; |
| 536 break; | |
| 537 case Bmax: if (ival1 < ival2) ival1 = ival2; break; | |
| 538 case Bmin: if (ival1 > ival2) ival1 = ival2; break; | |
| 539 } | |
| 540 return make_int (ival1); | |
| 541 } | |
| 542 else | |
| 543 { | |
| 544 double dval1 = FLOATP (obj1) ? XFLOAT_DATA (obj1) : (double) ival1; | |
| 545 double dval2 = FLOATP (obj2) ? XFLOAT_DATA (obj2) : (double) ival2; | |
| 546 switch (opcode) | |
| 547 { | |
| 548 case Bplus: dval1 += dval2; break; | |
| 549 case Bdiff: dval1 -= dval2; break; | |
| 550 case Bmult: dval1 *= dval2; break; | |
| 551 case Bquo: | |
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552 if (dval2 == 0) |
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553 signal_error_2 (Qarith_error, "division by zero", obj1, obj2); |
| 428 | 554 dval1 /= dval2; |
| 555 break; | |
| 556 case Bmax: if (dval1 < dval2) dval1 = dval2; break; | |
| 557 case Bmin: if (dval1 > dval2) dval1 = dval2; break; | |
| 558 } | |
| 559 return make_float (dval1); | |
| 560 } | |
| 1983 | 561 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 562 } |
| 563 | |
| 564 | |
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565 |
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566 /*********************** The instruction array *********************/ |
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567 |
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568 /* Check that there are at least LEN elements left in the end of the |
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569 instruction array before fetching them. Note that we allow for |
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570 PROGRAM_PTR == PROGRAM_END after the fetch -- that means there are |
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571 no more elements to fetch next time around, but we might exit before |
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572 next time comes. |
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573 |
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574 When checking the destination if jumps, however, we don't allow |
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575 PROGRAM_PTR to equal PROGRAM_END, since we will always be fetching |
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576 another instruction after the jump. */ |
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577 |
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578 #define CHECK_OPCODE_SPACE(len) \ |
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579 bytecode_assert (program_ptr + len <= program_end) |
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580 |
| 428 | 581 /* Read next uint8 from the instruction stream. */ |
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582 #define READ_UINT_1 \ |
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583 (CHECK_OPCODE_SPACE (1), (unsigned int) (unsigned char) *program_ptr++) |
| 428 | 584 |
| 585 /* Read next uint16 from the instruction stream. */ | |
| 586 #define READ_UINT_2 \ | |
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587 (CHECK_OPCODE_SPACE (2), \ |
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588 program_ptr += 2, \ |
| 428 | 589 (((unsigned int) (unsigned char) program_ptr[-1]) * 256 + \ |
| 590 ((unsigned int) (unsigned char) program_ptr[-2]))) | |
| 591 | |
| 592 /* Read next int8 from the instruction stream. */ | |
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593 #define READ_INT_1 \ |
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594 (CHECK_OPCODE_SPACE (1), (int) (signed char) *program_ptr++) |
| 428 | 595 |
| 596 /* Read next int16 from the instruction stream. */ | |
| 597 #define READ_INT_2 \ | |
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598 (CHECK_OPCODE_SPACE (2), \ |
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599 program_ptr += 2, \ |
| 428 | 600 (((int) ( signed char) program_ptr[-1]) * 256 + \ |
| 601 ((int) (unsigned char) program_ptr[-2]))) | |
| 602 | |
| 603 /* Read next int8 from instruction stream; don't advance program_pointer */ | |
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604 #define PEEK_INT_1 \ |
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605 (CHECK_OPCODE_SPACE (1), (int) (signed char) program_ptr[0]) |
| 428 | 606 |
| 607 /* Read next int16 from instruction stream; don't advance program_pointer */ | |
| 608 #define PEEK_INT_2 \ | |
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609 (CHECK_OPCODE_SPACE (2), \ |
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610 (((int) ( signed char) program_ptr[1]) * 256) | \ |
| 428 | 611 ((int) (unsigned char) program_ptr[0])) |
| 612 | |
| 613 /* Do relative jumps from the current location. | |
| 614 We only do a QUIT if we jump backwards, for efficiency. | |
| 615 No infloops without backward jumps! */ | |
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616 #define JUMP_RELATIVE(jump) do { \ |
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617 int _JR_jump = (jump); \ |
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618 if (_JR_jump < 0) QUIT; \ |
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619 /* Check that where we're going to is in range. Note that we don't use \ |
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620 CHECK_OPCODE_SPACE() -- that only checks the end, and it allows \ |
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621 program_ptr == program_end, which we don't allow. */ \ |
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622 bytecode_assert (program_ptr + _JR_jump >= program && \ |
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623 program_ptr + _JR_jump < program_end); \ |
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624 program_ptr += _JR_jump; \ |
| 428 | 625 } while (0) |
| 626 | |
| 627 #define JUMP JUMP_RELATIVE (PEEK_INT_2) | |
| 628 #define JUMPR JUMP_RELATIVE (PEEK_INT_1) | |
| 629 | |
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630 #define JUMP_NEXT (CHECK_OPCODE_SPACE (2), (void) (program_ptr += 2)) |
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631 #define JUMPR_NEXT (CHECK_OPCODE_SPACE (1), (void) (program_ptr += 1)) |
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632 |
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633 /*********************** The stack array *********************/ |
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634 |
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635 /* NOTE: The stack array doesn't work quite like you'd expect. |
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636 |
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637 STACK_PTR points to the value on the top of the stack. Popping a value |
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638 fetches the value from the STACK_PTR and then decrements it. Pushing a |
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639 value first increments it, then writes the new value. STACK_PTR - |
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640 STACK_BEG is the number of elements on the stack. |
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641 |
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642 This means that when STACK_PTR == STACK_BEG, the stack is empty, and |
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643 the space at STACK_BEG is never written to -- the first push will write |
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644 into the space directly after STACK_BEG. This is why the call to |
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645 alloca_array() below has a count of `stack_depth + 1', and why |
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646 we GCPRO1 (stack_ptr[1]) -- the value at stack_ptr[0] is unused and |
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647 uninitialized. |
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648 |
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649 Also, STACK_END actually points to the last usable storage location, |
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650 and does not point past the end, like you'd expect. */ |
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651 |
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652 #define CHECK_STACKPTR_OFFSET(len) \ |
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653 bytecode_assert (stack_ptr + (len) >= stack_beg && \ |
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654 stack_ptr + (len) <= stack_end) |
| 428 | 655 |
| 656 /* Push x onto the execution stack. */ | |
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657 #define PUSH(x) (CHECK_STACKPTR_OFFSET (1), *++stack_ptr = (x)) |
| 428 | 658 |
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659 /* Pop a value, which may be multiple, off the execution stack. */ |
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660 #define POP_WITH_MULTIPLE_VALUES (CHECK_STACKPTR_OFFSET (-1), *stack_ptr--) |
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661 |
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662 /* Pop a value off the execution stack, treating multiple values as single. */ |
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663 #define POP (IGNORE_MULTIPLE_VALUES (POP_WITH_MULTIPLE_VALUES)) |
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664 |
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665 /* ..._UNSAFE() means it evaluates its argument more than once. */ |
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666 #define DISCARD_PRESERVING_MULTIPLE_VALUES_UNSAFE(n) \ |
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667 (CHECK_STACKPTR_OFFSET (-(n)), stack_ptr -= (n)) |
| 428 | 668 |
| 669 /* Discard n values from the execution stack. */ | |
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670 #define DISCARD(n) do { \ |
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671 int _discard_n = (n); \ |
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672 if (1 != multiple_value_current_limit) \ |
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673 { \ |
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674 int i; \ |
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675 for (i = 0; i < _discard_n; i++) \ |
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676 { \ |
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677 CHECK_STACKPTR_OFFSET (-1); \ |
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678 *stack_ptr = ignore_multiple_values (*stack_ptr); \ |
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679 stack_ptr--; \ |
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680 } \ |
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681 } \ |
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682 else \ |
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683 { \ |
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684 CHECK_STACKPTR_OFFSET (-_discard_n); \ |
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685 stack_ptr -= _discard_n; \ |
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686 } \ |
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687 } while (0) |
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688 |
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689 /* Get the value, which may be multiple, at the top of the execution stack; |
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690 and leave it there. */ |
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691 #define TOP_WITH_MULTIPLE_VALUES (*stack_ptr) |
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692 |
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693 #define TOP_ADDRESS (stack_ptr) |
| 428 | 694 |
| 695 /* Get the value which is at the top of the execution stack, | |
| 696 but don't pop it. */ | |
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697 #define TOP (IGNORE_MULTIPLE_VALUES (TOP_WITH_MULTIPLE_VALUES)) |
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698 |
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699 #define TOP_LVALUE (*stack_ptr) |
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700 |
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701 |
| 428 | 702 |
| 1920 | 703 /* See comment before the big switch in execute_optimized_program(). */ |
| 1884 | 704 #define GCPRO_STACK (gcpro1.nvars = stack_ptr - stack_beg) |
| 705 | |
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706 |
| 428 | 707 /* The actual interpreter for byte code. |
| 708 This function has been seriously optimized for performance. | |
| 709 Don't change the constructs unless you are willing to do | |
| 710 real benchmarking and profiling work -- martin */ | |
| 711 | |
| 712 | |
| 814 | 713 Lisp_Object |
| 442 | 714 execute_optimized_program (const Opbyte *program, |
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715 #ifdef ERROR_CHECK_BYTE_CODE |
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716 Elemcount program_length, |
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717 #endif |
| 428 | 718 int stack_depth, |
| 719 Lisp_Object *constants_data) | |
| 720 { | |
| 721 /* This function can GC */ | |
| 442 | 722 REGISTER const Opbyte *program_ptr = (Opbyte *) program; |
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723 #ifdef ERROR_CHECK_BYTE_CODE |
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724 const Opbyte *program_end = program_ptr + program_length; |
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725 #endif |
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726 /* See comment above explaining the `+ 1' */ |
| 1884 | 727 Lisp_Object *stack_beg = alloca_array (Lisp_Object, stack_depth + 1); |
| 728 REGISTER Lisp_Object *stack_ptr = stack_beg; | |
| 428 | 729 int speccount = specpdl_depth (); |
| 730 struct gcpro gcpro1; | |
| 731 | |
| 732 #ifdef BYTE_CODE_METER | |
| 4925 | 733 Opcode this_opcode = (Opcode) 0; |
| 428 | 734 Opcode prev_opcode; |
| 735 #endif | |
| 736 | |
| 737 #ifdef ERROR_CHECK_BYTE_CODE | |
| 738 Lisp_Object *stack_end = stack_beg + stack_depth; | |
| 739 #endif | |
| 740 | |
| 1920 | 741 /* We used to GCPRO the whole interpreter stack before entering this while |
| 742 loop (21.5.14 and before), but that interferes with collection of weakly | |
| 743 referenced objects. Although strictly speaking there's no promise that | |
| 744 weak references will disappear by any given point in time, they should | |
| 745 be collected at the first opportunity. Waiting until exit from the | |
| 746 function caused test failures because "stale" objects "above" the top of | |
| 747 the stack were still GCPROed, and they were not getting collected until | |
| 748 after exit from the (byte-compiled) test! | |
| 749 | |
| 750 Now the idea is to dynamically adjust the array of GCPROed objects to | |
| 751 include only the "active" region of the stack. | |
| 752 | |
| 753 We use the "GCPRO1 the array base and set the nvars member" method. It | |
| 754 would be slightly inefficient but correct to use GCPRO1_ARRAY here. It | |
| 755 would just redundantly set nvars. | |
| 756 #### Maybe it would be clearer to use GCPRO1_ARRAY and do GCPRO_STACK | |
| 757 after the switch? | |
| 758 | |
| 759 GCPRO_STACK is something of a misnomer, because it suggests that a | |
| 760 struct gcpro is initialized each time. This is false; only the nvars | |
| 761 member of a single struct gcpro is being adjusted. This works because | |
| 762 each time a new object is assigned to a stack location, the old object | |
| 763 loses its reference and is effectively UNGCPROed, and the new object is | |
| 764 automatically GCPROed as long as nvars is correct. Only when we | |
| 765 return from the interpreter do we need to finalize the struct gcpro | |
| 766 itself, and that's done at case Breturn. | |
| 767 */ | |
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768 |
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769 /* See comment above explaining the `[1]' */ |
| 428 | 770 GCPRO1 (stack_ptr[1]); |
| 1758 | 771 |
| 428 | 772 while (1) |
| 773 { | |
| 774 REGISTER Opcode opcode = (Opcode) READ_UINT_1; | |
| 1920 | 775 |
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776 #ifdef ERROR_CHECK_BYTE_CODE |
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777 remember_operation (opcode); |
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778 #endif |
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779 |
| 1920 | 780 GCPRO_STACK; /* Get nvars right before maybe signaling. */ |
|
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781 /* #### NOTE: This code should probably never get triggered, since we |
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782 now catch the problems earlier, farther down, before we ever set |
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783 a bad value for STACK_PTR. */ |
| 428 | 784 #ifdef ERROR_CHECK_BYTE_CODE |
| 785 if (stack_ptr > stack_end) | |
| 563 | 786 stack_overflow ("byte code stack overflow", Qunbound); |
| 428 | 787 if (stack_ptr < stack_beg) |
| 563 | 788 stack_overflow ("byte code stack underflow", Qunbound); |
| 428 | 789 #endif |
| 790 | |
| 791 #ifdef BYTE_CODE_METER | |
| 792 prev_opcode = this_opcode; | |
| 793 this_opcode = opcode; | |
| 794 meter_code (prev_opcode, this_opcode); | |
| 795 #endif | |
| 796 | |
| 797 switch (opcode) | |
| 798 { | |
| 799 REGISTER int n; | |
| 800 | |
| 801 default: | |
| 802 if (opcode >= Bconstant) | |
| 803 PUSH (constants_data[opcode - Bconstant]); | |
| 804 else | |
| 1884 | 805 { |
| 806 /* We're not sure what these do, so better safe than sorry. */ | |
| 807 /* GCPRO_STACK; */ | |
|
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808 stack_ptr = execute_rare_opcode (stack_ptr, |
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809 #ifdef ERROR_CHECK_BYTE_CODE |
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810 stack_beg, |
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811 stack_end, |
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812 #endif /* ERROR_CHECK_BYTE_CODE */ |
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813 program_ptr, opcode); |
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814 CHECK_STACKPTR_OFFSET (0); |
| 1884 | 815 } |
| 428 | 816 break; |
| 817 | |
| 818 case Bvarref: | |
| 819 case Bvarref+1: | |
| 820 case Bvarref+2: | |
| 821 case Bvarref+3: | |
| 822 case Bvarref+4: | |
| 823 case Bvarref+5: n = opcode - Bvarref; goto do_varref; | |
| 824 case Bvarref+7: n = READ_UINT_2; goto do_varref; | |
| 825 case Bvarref+6: n = READ_UINT_1; /* most common */ | |
| 826 do_varref: | |
| 827 { | |
| 828 Lisp_Object symbol = constants_data[n]; | |
| 829 Lisp_Object value = XSYMBOL (symbol)->value; | |
| 830 if (SYMBOL_VALUE_MAGIC_P (value)) | |
| 1920 | 831 /* I GCPRO_STACKed Fsymbol_value elsewhere, but I dunno why. */ |
| 832 /* GCPRO_STACK; */ | |
| 428 | 833 value = Fsymbol_value (symbol); |
| 834 PUSH (value); | |
| 835 break; | |
| 836 } | |
| 837 | |
| 838 case Bvarset: | |
| 839 case Bvarset+1: | |
| 840 case Bvarset+2: | |
| 841 case Bvarset+3: | |
| 842 case Bvarset+4: | |
| 843 case Bvarset+5: n = opcode - Bvarset; goto do_varset; | |
| 844 case Bvarset+7: n = READ_UINT_2; goto do_varset; | |
| 845 case Bvarset+6: n = READ_UINT_1; /* most common */ | |
| 846 do_varset: | |
| 847 { | |
| 848 Lisp_Object symbol = constants_data[n]; | |
| 440 | 849 Lisp_Symbol *symbol_ptr = XSYMBOL (symbol); |
| 428 | 850 Lisp_Object old_value = symbol_ptr->value; |
| 851 Lisp_Object new_value = POP; | |
| 1661 | 852 if (!SYMBOL_VALUE_MAGIC_P (old_value) || UNBOUNDP (old_value)) |
| 428 | 853 symbol_ptr->value = new_value; |
| 1884 | 854 else { |
| 855 /* Fset may call magic handlers */ | |
| 856 /* GCPRO_STACK; */ | |
| 428 | 857 Fset (symbol, new_value); |
| 1884 | 858 } |
| 859 | |
| 428 | 860 break; |
| 861 } | |
| 862 | |
| 863 case Bvarbind: | |
| 864 case Bvarbind+1: | |
| 865 case Bvarbind+2: | |
| 866 case Bvarbind+3: | |
| 867 case Bvarbind+4: | |
| 868 case Bvarbind+5: n = opcode - Bvarbind; goto do_varbind; | |
| 869 case Bvarbind+7: n = READ_UINT_2; goto do_varbind; | |
| 870 case Bvarbind+6: n = READ_UINT_1; /* most common */ | |
| 871 do_varbind: | |
| 872 { | |
| 873 Lisp_Object symbol = constants_data[n]; | |
| 440 | 874 Lisp_Symbol *symbol_ptr = XSYMBOL (symbol); |
| 428 | 875 Lisp_Object old_value = symbol_ptr->value; |
| 876 Lisp_Object new_value = POP; | |
| 877 if (!SYMBOL_VALUE_MAGIC_P (old_value) || UNBOUNDP (old_value)) | |
| 878 { | |
| 879 specpdl_ptr->symbol = symbol; | |
| 880 specpdl_ptr->old_value = old_value; | |
| 881 specpdl_ptr->func = 0; | |
| 882 specpdl_ptr++; | |
| 883 specpdl_depth_counter++; | |
| 884 | |
| 885 symbol_ptr->value = new_value; | |
| 853 | 886 |
| 887 #ifdef ERROR_CHECK_CATCH | |
| 888 check_specbind_stack_sanity (); | |
| 889 #endif | |
| 428 | 890 } |
| 891 else | |
| 1884 | 892 { |
| 893 /* does an Fset, may call magic handlers */ | |
| 894 /* GCPRO_STACK; */ | |
| 895 specbind_magic (symbol, new_value); | |
| 896 } | |
| 428 | 897 break; |
| 898 } | |
| 899 | |
| 900 case Bcall: | |
| 901 case Bcall+1: | |
| 902 case Bcall+2: | |
| 903 case Bcall+3: | |
| 904 case Bcall+4: | |
| 905 case Bcall+5: | |
| 906 case Bcall+6: | |
| 907 case Bcall+7: | |
| 908 n = (opcode < Bcall+6 ? opcode - Bcall : | |
| 909 opcode == Bcall+6 ? READ_UINT_1 : READ_UINT_2); | |
| 1920 | 910 /* #### Shouldn't this be just before the Ffuncall? |
| 911 Neither Fget nor Fput can GC. */ | |
| 1884 | 912 /* GCPRO_STACK; */ |
| 428 | 913 DISCARD (n); |
| 914 #ifdef BYTE_CODE_METER | |
| 915 if (byte_metering_on && SYMBOLP (TOP)) | |
| 916 { | |
| 917 Lisp_Object val = Fget (TOP, Qbyte_code_meter, Qnil); | |
| 918 if (INTP (val)) | |
| 919 Fput (TOP, Qbyte_code_meter, make_int (XINT (val) + 1)); | |
| 920 } | |
| 921 #endif | |
|
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922 TOP_LVALUE = TOP; /* Ignore multiple values. */ |
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923 TOP_LVALUE = Ffuncall (n + 1, TOP_ADDRESS); |
| 428 | 924 break; |
| 925 | |
| 926 case Bunbind: | |
| 927 case Bunbind+1: | |
| 928 case Bunbind+2: | |
| 929 case Bunbind+3: | |
| 930 case Bunbind+4: | |
| 931 case Bunbind+5: | |
| 932 case Bunbind+6: | |
| 933 case Bunbind+7: | |
| 934 UNBIND_TO (specpdl_depth() - | |
| 935 (opcode < Bunbind+6 ? opcode-Bunbind : | |
| 936 opcode == Bunbind+6 ? READ_UINT_1 : READ_UINT_2)); | |
| 937 break; | |
| 938 | |
| 939 | |
| 940 case Bgoto: | |
| 941 JUMP; | |
| 942 break; | |
| 943 | |
| 944 case Bgotoifnil: | |
| 945 if (NILP (POP)) | |
| 946 JUMP; | |
| 947 else | |
| 948 JUMP_NEXT; | |
| 949 break; | |
| 950 | |
| 951 case Bgotoifnonnil: | |
| 952 if (!NILP (POP)) | |
| 953 JUMP; | |
| 954 else | |
| 955 JUMP_NEXT; | |
| 956 break; | |
| 957 | |
| 958 case Bgotoifnilelsepop: | |
|
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959 /* Discard any multiple value: */ |
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960 if (NILP (TOP_LVALUE = TOP)) |
| 428 | 961 JUMP; |
| 962 else | |
| 963 { | |
| 964 DISCARD (1); | |
| 965 JUMP_NEXT; | |
| 966 } | |
| 967 break; | |
| 968 | |
| 969 case Bgotoifnonnilelsepop: | |
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970 /* Discard any multiple value: */ |
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971 if (!NILP (TOP_LVALUE = TOP)) |
| 428 | 972 JUMP; |
| 973 else | |
| 974 { | |
| 975 DISCARD (1); | |
| 976 JUMP_NEXT; | |
| 977 } | |
| 978 break; | |
| 979 | |
| 980 | |
| 981 case BRgoto: | |
| 982 JUMPR; | |
| 983 break; | |
| 984 | |
| 985 case BRgotoifnil: | |
| 986 if (NILP (POP)) | |
| 987 JUMPR; | |
| 988 else | |
| 989 JUMPR_NEXT; | |
| 990 break; | |
| 991 | |
| 992 case BRgotoifnonnil: | |
| 993 if (!NILP (POP)) | |
| 994 JUMPR; | |
| 995 else | |
| 996 JUMPR_NEXT; | |
| 997 break; | |
| 998 | |
| 999 case BRgotoifnilelsepop: | |
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|
1000 if (NILP (TOP_LVALUE = TOP)) |
| 428 | 1001 JUMPR; |
| 1002 else | |
| 1003 { | |
| 1004 DISCARD (1); | |
| 1005 JUMPR_NEXT; | |
| 1006 } | |
| 1007 break; | |
| 1008 | |
| 1009 case BRgotoifnonnilelsepop: | |
|
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1010 if (!NILP (TOP_LVALUE = TOP)) |
| 428 | 1011 JUMPR; |
| 1012 else | |
| 1013 { | |
| 1014 DISCARD (1); | |
| 1015 JUMPR_NEXT; | |
| 1016 } | |
| 1017 break; | |
| 1018 | |
| 1019 case Breturn: | |
| 1020 UNGCPRO; | |
| 1021 #ifdef ERROR_CHECK_BYTE_CODE | |
| 1022 /* Binds and unbinds are supposed to be compiled balanced. */ | |
| 1023 if (specpdl_depth() != speccount) | |
| 563 | 1024 invalid_byte_code ("unbalanced specbinding stack", Qunbound); |
| 428 | 1025 #endif |
|
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1026 return TOP_WITH_MULTIPLE_VALUES; |
| 428 | 1027 |
| 1028 case Bdiscard: | |
| 1029 DISCARD (1); | |
| 1030 break; | |
| 1031 | |
| 1032 case Bdup: | |
| 1033 { | |
|
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1034 Lisp_Object arg = TOP_WITH_MULTIPLE_VALUES; |
| 428 | 1035 PUSH (arg); |
| 1036 break; | |
| 1037 } | |
| 1038 | |
| 1039 case Bconstant2: | |
| 1040 PUSH (constants_data[READ_UINT_2]); | |
| 1041 break; | |
| 1042 | |
| 1043 case Bcar: | |
|
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1044 { |
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1045 /* Fcar can GC via wrong_type_argument. */ |
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1046 /* GCPRO_STACK; */ |
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1047 Lisp_Object arg = TOP; |
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1048 TOP_LVALUE = CONSP (arg) ? XCAR (arg) : Fcar (arg); |
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1049 break; |
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|
1050 } |
| 428 | 1051 |
| 1052 case Bcdr: | |
|
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1053 { |
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|
1054 /* Fcdr can GC via wrong_type_argument. */ |
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|
1055 /* GCPRO_STACK; */ |
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|
1056 Lisp_Object arg = TOP; |
|
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|
1057 TOP_LVALUE = CONSP (arg) ? XCDR (arg) : Fcdr (arg); |
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|
1058 break; |
|
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|
1059 } |
| 428 | 1060 |
| 1061 case Bunbind_all: | |
| 1062 /* To unbind back to the beginning of this frame. Not used yet, | |
| 1063 but will be needed for tail-recursion elimination. */ | |
| 771 | 1064 unbind_to (speccount); |
| 428 | 1065 break; |
| 1066 | |
| 1067 case Bnth: | |
| 1068 { | |
| 1069 Lisp_Object arg = POP; | |
| 1920 | 1070 /* Fcar and Fnthcdr can GC via wrong_type_argument. */ |
| 1071 /* GCPRO_STACK; */ | |
|
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|
1072 TOP_LVALUE = Fcar (Fnthcdr (TOP, arg)); |
| 428 | 1073 break; |
| 1074 } | |
| 1075 | |
| 1076 case Bsymbolp: | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
1077 TOP_LVALUE = SYMBOLP (TOP) ? Qt : Qnil; |
| 428 | 1078 break; |
| 1079 | |
| 1080 case Bconsp: | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
1081 TOP_LVALUE = CONSP (TOP) ? Qt : Qnil; |
| 428 | 1082 break; |
| 1083 | |
| 1084 case Bstringp: | |
|
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Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
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|
1085 TOP_LVALUE = STRINGP (TOP) ? Qt : Qnil; |
| 428 | 1086 break; |
| 1087 | |
| 1088 case Blistp: | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1089 TOP_LVALUE = LISTP (TOP) ? Qt : Qnil; |
| 428 | 1090 break; |
| 1091 | |
| 1092 case Bnumberp: | |
| 1983 | 1093 #ifdef WITH_NUMBER_TYPES |
|
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Support full Common Lisp multiple values in C.
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|
1094 TOP_LVALUE = NUMBERP (TOP) ? Qt : Qnil; |
| 1983 | 1095 #else |
|
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|
1096 TOP_LVALUE = INT_OR_FLOATP (TOP) ? Qt : Qnil; |
| 1983 | 1097 #endif |
| 428 | 1098 break; |
| 1099 | |
|
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|
1100 case Bfixnump: |
|
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|
1101 TOP_LVALUE = INTP (TOP) ? Qt : Qnil; |
| 428 | 1102 break; |
| 1103 | |
| 1104 case Beq: | |
| 1105 { | |
| 1106 Lisp_Object arg = POP; | |
|
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1107 TOP_LVALUE = EQ_WITH_EBOLA_NOTICE (TOP, arg) ? Qt : Qnil; |
| 428 | 1108 break; |
| 1109 } | |
| 1110 | |
| 1111 case Bnot: | |
|
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|
1112 TOP_LVALUE = NILP (TOP) ? Qt : Qnil; |
| 428 | 1113 break; |
| 1114 | |
| 1115 case Bcons: | |
| 1116 { | |
| 1117 Lisp_Object arg = POP; | |
|
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|
1118 TOP_LVALUE = Fcons (TOP, arg); |
| 428 | 1119 break; |
| 1120 } | |
| 1121 | |
| 1122 case Blist1: | |
|
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|
1123 TOP_LVALUE = Fcons (TOP, Qnil); |
| 428 | 1124 break; |
| 1125 | |
| 1126 | |
| 1127 case BlistN: | |
| 1128 n = READ_UINT_1; | |
| 1129 goto do_list; | |
| 1130 | |
| 1131 case Blist2: | |
| 1132 case Blist3: | |
| 1133 case Blist4: | |
| 1134 /* common case */ | |
| 1135 n = opcode - (Blist1 - 1); | |
| 1136 do_list: | |
| 1137 { | |
| 1138 Lisp_Object list = Qnil; | |
| 1139 list_loop: | |
| 1140 list = Fcons (TOP, list); | |
| 1141 if (--n) | |
| 1142 { | |
| 1143 DISCARD (1); | |
| 1144 goto list_loop; | |
| 1145 } | |
|
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|
1146 TOP_LVALUE = list; |
| 428 | 1147 break; |
| 1148 } | |
| 1149 | |
| 1150 | |
| 1151 case Bconcat2: | |
| 1152 case Bconcat3: | |
| 1153 case Bconcat4: | |
| 1154 n = opcode - (Bconcat2 - 2); | |
| 1155 goto do_concat; | |
| 1156 | |
| 1157 case BconcatN: | |
| 1158 /* common case */ | |
| 1159 n = READ_UINT_1; | |
| 1160 do_concat: | |
| 1161 DISCARD (n - 1); | |
| 1920 | 1162 /* Apparently `concat' can GC; Fconcat GCPROs its arguments. */ |
| 1163 /* GCPRO_STACK; */ | |
|
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1164 TOP_LVALUE = TOP; /* Ignore multiple values. */ |
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1165 TOP_LVALUE = Fconcat (n, TOP_ADDRESS); |
| 428 | 1166 break; |
| 1167 | |
| 1168 | |
| 1169 case Blength: | |
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1170 TOP_LVALUE = Flength (TOP); |
| 428 | 1171 break; |
| 1172 | |
| 1173 case Baset: | |
| 1174 { | |
| 1175 Lisp_Object arg2 = POP; | |
| 1176 Lisp_Object arg1 = POP; | |
|
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1177 TOP_LVALUE = Faset (TOP, arg1, arg2); |
| 428 | 1178 break; |
| 1179 } | |
| 1180 | |
| 1181 case Bsymbol_value: | |
| 1920 | 1182 /* Why does this need GCPRO_STACK? If not, remove others, too. */ |
| 1884 | 1183 /* GCPRO_STACK; */ |
|
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1184 TOP_LVALUE = Fsymbol_value (TOP); |
| 428 | 1185 break; |
| 1186 | |
| 1187 case Bsymbol_function: | |
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1188 TOP_LVALUE = Fsymbol_function (TOP); |
| 428 | 1189 break; |
| 1190 | |
| 1191 case Bget: | |
| 1192 { | |
| 1193 Lisp_Object arg = POP; | |
|
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1194 TOP_LVALUE = Fget (TOP, arg, Qnil); |
| 428 | 1195 break; |
| 1196 } | |
| 1197 | |
| 1198 case Bsub1: | |
|
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1199 { |
| 1983 | 1200 #ifdef HAVE_BIGNUM |
|
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1201 TOP_LVALUE = Fsub1 (TOP); |
| 1983 | 1202 #else |
|
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1203 Lisp_Object arg = TOP; |
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1204 TOP_LVALUE = INTP (arg) ? INT_MINUS1 (arg) : Fsub1 (arg); |
| 1983 | 1205 #endif |
| 428 | 1206 break; |
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1207 } |
| 428 | 1208 case Badd1: |
|
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1209 { |
| 1983 | 1210 #ifdef HAVE_BIGNUM |
|
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1211 TOP_LVALUE = Fadd1 (TOP); |
| 1983 | 1212 #else |
|
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1213 Lisp_Object arg = TOP; |
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1214 TOP_LVALUE = INTP (arg) ? INT_PLUS1 (arg) : Fadd1 (arg); |
| 1983 | 1215 #endif |
| 428 | 1216 break; |
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|
1217 } |
| 428 | 1218 |
| 1219 case Beqlsign: | |
| 1220 { | |
| 1221 Lisp_Object arg = POP; | |
|
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1222 TOP_LVALUE = bytecode_arithcompare (TOP, arg) == 0 ? Qt : Qnil; |
| 428 | 1223 break; |
| 1224 } | |
| 1225 | |
| 1226 case Bgtr: | |
| 1227 { | |
| 1228 Lisp_Object arg = POP; | |
|
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1229 TOP_LVALUE = bytecode_arithcompare (TOP, arg) > 0 ? Qt : Qnil; |
| 428 | 1230 break; |
| 1231 } | |
| 1232 | |
| 1233 case Blss: | |
| 1234 { | |
| 1235 Lisp_Object arg = POP; | |
|
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1236 TOP_LVALUE = bytecode_arithcompare (TOP, arg) < 0 ? Qt : Qnil; |
| 428 | 1237 break; |
| 1238 } | |
| 1239 | |
| 1240 case Bleq: | |
| 1241 { | |
| 1242 Lisp_Object arg = POP; | |
|
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1243 TOP_LVALUE = bytecode_arithcompare (TOP, arg) <= 0 ? Qt : Qnil; |
| 428 | 1244 break; |
| 1245 } | |
| 1246 | |
| 1247 case Bgeq: | |
| 1248 { | |
| 1249 Lisp_Object arg = POP; | |
|
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Support full Common Lisp multiple values in C.
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1250 TOP_LVALUE = bytecode_arithcompare (TOP, arg) >= 0 ? Qt : Qnil; |
| 428 | 1251 break; |
| 1252 } | |
| 1253 | |
| 1254 | |
| 1255 case Bnegate: | |
|
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1256 TOP_LVALUE = bytecode_negate (TOP); |
| 428 | 1257 break; |
| 1258 | |
| 1259 case Bnconc: | |
| 1260 DISCARD (1); | |
| 1920 | 1261 /* nconc2 GCPROs before calling this. */ |
| 1262 /* GCPRO_STACK; */ | |
|
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1263 TOP_LVALUE = TOP; /* Ignore multiple values. */ |
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1264 TOP_LVALUE = bytecode_nconc2 (TOP_ADDRESS); |
| 428 | 1265 break; |
| 1266 | |
| 1267 case Bplus: | |
| 1268 { | |
| 1269 Lisp_Object arg2 = POP; | |
| 1270 Lisp_Object arg1 = TOP; | |
| 1983 | 1271 #ifdef HAVE_BIGNUM |
|
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1272 TOP_LVALUE = bytecode_arithop (arg1, arg2, opcode); |
| 1983 | 1273 #else |
|
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|
1274 TOP_LVALUE = INTP (arg1) && INTP (arg2) ? |
| 428 | 1275 INT_PLUS (arg1, arg2) : |
| 1276 bytecode_arithop (arg1, arg2, opcode); | |
| 1983 | 1277 #endif |
| 428 | 1278 break; |
| 1279 } | |
| 1280 | |
| 1281 case Bdiff: | |
| 1282 { | |
| 1283 Lisp_Object arg2 = POP; | |
| 1284 Lisp_Object arg1 = TOP; | |
| 1983 | 1285 #ifdef HAVE_BIGNUM |
|
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|
1286 TOP_LVALUE = bytecode_arithop (arg1, arg2, opcode); |
| 1983 | 1287 #else |
|
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|
1288 TOP_LVALUE = INTP (arg1) && INTP (arg2) ? |
| 428 | 1289 INT_MINUS (arg1, arg2) : |
| 1290 bytecode_arithop (arg1, arg2, opcode); | |
| 1983 | 1291 #endif |
| 428 | 1292 break; |
| 1293 } | |
| 1294 | |
| 1295 case Bmult: | |
| 1296 case Bquo: | |
| 1297 case Bmax: | |
| 1298 case Bmin: | |
| 1299 { | |
| 1300 Lisp_Object arg = POP; | |
|
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1301 TOP_LVALUE = bytecode_arithop (TOP, arg, opcode); |
| 428 | 1302 break; |
| 1303 } | |
| 1304 | |
| 1305 case Bpoint: | |
| 1306 PUSH (make_int (BUF_PT (current_buffer))); | |
| 1307 break; | |
| 1308 | |
| 1309 case Binsert: | |
| 1920 | 1310 /* Says it can GC. */ |
| 1311 /* GCPRO_STACK; */ | |
|
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1312 TOP_LVALUE = TOP; /* Ignore multiple values. */ |
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1313 TOP_LVALUE = Finsert (1, TOP_ADDRESS); |
| 428 | 1314 break; |
| 1315 | |
| 1316 case BinsertN: | |
| 1317 n = READ_UINT_1; | |
| 1318 DISCARD (n - 1); | |
| 1920 | 1319 /* See Binsert. */ |
| 1320 /* GCPRO_STACK; */ | |
|
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1321 TOP_LVALUE = TOP; /* Ignore multiple values. */ |
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1322 TOP_LVALUE = Finsert (n, TOP_ADDRESS); |
| 428 | 1323 break; |
| 1324 | |
| 1325 case Baref: | |
| 1326 { | |
| 1327 Lisp_Object arg = POP; | |
|
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|
1328 TOP_LVALUE = Faref (TOP, arg); |
| 428 | 1329 break; |
| 1330 } | |
| 1331 | |
| 1332 case Bmemq: | |
| 1333 { | |
| 1334 Lisp_Object arg = POP; | |
|
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|
1335 TOP_LVALUE = Fmemq (TOP, arg); |
| 428 | 1336 break; |
| 1337 } | |
| 1338 | |
| 1339 case Bset: | |
| 1340 { | |
| 1341 Lisp_Object arg = POP; | |
| 1884 | 1342 /* Fset may call magic handlers */ |
| 1343 /* GCPRO_STACK; */ | |
|
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|
1344 TOP_LVALUE = Fset (TOP, arg); |
| 428 | 1345 break; |
| 1346 } | |
| 1347 | |
| 1348 case Bequal: | |
| 1349 { | |
| 1350 Lisp_Object arg = POP; | |
| 1920 | 1351 /* Can QUIT, so can GC, right? */ |
| 1352 /* GCPRO_STACK; */ | |
|
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|
1353 TOP_LVALUE = Fequal (TOP, arg); |
| 428 | 1354 break; |
| 1355 } | |
| 1356 | |
| 1357 case Bnthcdr: | |
| 1358 { | |
| 1359 Lisp_Object arg = POP; | |
|
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changeset
|
1360 TOP_LVALUE = Fnthcdr (TOP, arg); |
| 428 | 1361 break; |
| 1362 } | |
| 1363 | |
| 1364 case Belt: | |
| 1365 { | |
| 1366 Lisp_Object arg = POP; | |
|
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|
1367 TOP_LVALUE = Felt (TOP, arg); |
| 428 | 1368 break; |
| 1369 } | |
| 1370 | |
| 1371 case Bmember: | |
| 1372 { | |
| 1373 Lisp_Object arg = POP; | |
| 1920 | 1374 /* Can QUIT, so can GC, right? */ |
| 1375 /* GCPRO_STACK; */ | |
|
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changeset
|
1376 TOP_LVALUE = Fmember (TOP, arg); |
| 428 | 1377 break; |
| 1378 } | |
| 1379 | |
| 1380 case Bgoto_char: | |
|
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|
1381 TOP_LVALUE = Fgoto_char (TOP, Qnil); |
| 428 | 1382 break; |
| 1383 | |
| 1384 case Bcurrent_buffer: | |
| 1385 { | |
| 793 | 1386 Lisp_Object buffer = wrap_buffer (current_buffer); |
| 1387 | |
| 428 | 1388 PUSH (buffer); |
| 1389 break; | |
| 1390 } | |
| 1391 | |
| 1392 case Bset_buffer: | |
| 1884 | 1393 /* #### WAG: set-buffer may cause Fset's of buffer locals |
| 1394 Didn't prevent crash. :-( */ | |
| 1395 /* GCPRO_STACK; */ | |
|
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|
1396 TOP_LVALUE = Fset_buffer (TOP); |
| 428 | 1397 break; |
| 1398 | |
| 1399 case Bpoint_max: | |
| 1400 PUSH (make_int (BUF_ZV (current_buffer))); | |
| 1401 break; | |
| 1402 | |
| 1403 case Bpoint_min: | |
| 1404 PUSH (make_int (BUF_BEGV (current_buffer))); | |
| 1405 break; | |
| 1406 | |
| 1407 case Bskip_chars_forward: | |
| 1408 { | |
| 1409 Lisp_Object arg = POP; | |
| 1920 | 1410 /* Can QUIT, so can GC, right? */ |
| 1411 /* GCPRO_STACK; */ | |
|
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changeset
|
1412 TOP_LVALUE = Fskip_chars_forward (TOP, arg, Qnil); |
| 428 | 1413 break; |
| 1414 } | |
| 1415 | |
| 1416 case Bassq: | |
| 1417 { | |
| 1418 Lisp_Object arg = POP; | |
|
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|
1419 TOP_LVALUE = Fassq (TOP, arg); |
| 428 | 1420 break; |
| 1421 } | |
| 1422 | |
| 1423 case Bsetcar: | |
| 1424 { | |
| 1425 Lisp_Object arg = POP; | |
|
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|
1426 TOP_LVALUE = Fsetcar (TOP, arg); |
| 428 | 1427 break; |
| 1428 } | |
| 1429 | |
| 1430 case Bsetcdr: | |
| 1431 { | |
| 1432 Lisp_Object arg = POP; | |
|
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diff
changeset
|
1433 TOP_LVALUE = Fsetcdr (TOP, arg); |
| 428 | 1434 break; |
| 1435 } | |
| 1436 | |
| 1437 case Bnreverse: | |
|
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|
1438 TOP_LVALUE = bytecode_nreverse (TOP); |
| 428 | 1439 break; |
| 1440 | |
| 1441 case Bcar_safe: | |
|
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|
1442 TOP_LVALUE = CONSP (TOP) ? XCAR (TOP) : Qnil; |
| 428 | 1443 break; |
| 1444 | |
| 1445 case Bcdr_safe: | |
|
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|
1446 TOP_LVALUE = CONSP (TOP) ? XCDR (TOP) : Qnil; |
| 428 | 1447 break; |
| 1448 | |
| 1449 } | |
| 1450 } | |
| 1451 } | |
| 1452 | |
| 1453 /* It makes a worthwhile performance difference (5%) to shunt | |
| 1454 lesser-used opcodes off to a subroutine, to keep the switch in | |
| 1455 execute_optimized_program small. If you REALLY care about | |
| 1456 performance, you want to keep your heavily executed code away from | |
| 1457 rarely executed code, to minimize cache misses. | |
| 1458 | |
| 1459 Don't make this function static, since then the compiler might inline it. */ | |
| 1460 Lisp_Object * | |
| 1461 execute_rare_opcode (Lisp_Object *stack_ptr, | |
|
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|
1462 #ifdef ERROR_CHECK_BYTE_CODE |
|
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|
1463 Lisp_Object *stack_beg, |
|
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|
1464 Lisp_Object *stack_end, |
|
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1465 #endif /* ERROR_CHECK_BYTE_CODE */ |
| 2286 | 1466 const Opbyte *UNUSED (program_ptr), |
| 428 | 1467 Opcode opcode) |
| 1468 { | |
|
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|
1469 REGISTER int n; |
|
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|
1470 |
| 428 | 1471 switch (opcode) |
| 1472 { | |
|
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1473 |
| 428 | 1474 case Bsave_excursion: |
| 1475 record_unwind_protect (save_excursion_restore, | |
| 1476 save_excursion_save ()); | |
| 1477 break; | |
| 1478 | |
|
4775
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Remove Fsave_window_excursion from window.c, it's overridden by Lisp.
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changeset
|
1479 /* This bytecode will eventually go away, once we no longer encounter |
|
1d61580e0cf7
Remove Fsave_window_excursion from window.c, it's overridden by Lisp.
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parents:
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changeset
|
1480 byte code from 21.4. In 21.5.10 and newer, save-window-excursion is |
|
1d61580e0cf7
Remove Fsave_window_excursion from window.c, it's overridden by Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1481 a macro. */ |
| 428 | 1482 case Bsave_window_excursion: |
| 1483 { | |
| 1484 int count = specpdl_depth (); | |
|
4775
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changeset
|
1485 record_unwind_protect (Feval, |
|
1d61580e0cf7
Remove Fsave_window_excursion from window.c, it's overridden by Lisp.
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|
1486 list2 (Qset_window_configuration, |
|
1d61580e0cf7
Remove Fsave_window_excursion from window.c, it's overridden by Lisp.
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changeset
|
1487 call0 (Qcurrent_window_configuration))); |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
1488 TOP_LVALUE = Fprogn (TOP); |
| 771 | 1489 unbind_to (count); |
| 428 | 1490 break; |
| 1491 } | |
| 1492 | |
| 1493 case Bsave_restriction: | |
| 1494 record_unwind_protect (save_restriction_restore, | |
| 844 | 1495 save_restriction_save (current_buffer)); |
| 428 | 1496 break; |
| 1497 | |
| 1498 case Bcatch: | |
| 1499 { | |
| 1500 Lisp_Object arg = POP; | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
1501 TOP_LVALUE = internal_catch (TOP, Feval, arg, 0, 0, 0); |
| 428 | 1502 break; |
| 1503 } | |
| 1504 | |
| 1505 case Bskip_chars_backward: | |
| 1506 { | |
| 1507 Lisp_Object arg = POP; | |
|
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parents:
3263
diff
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|
1508 TOP_LVALUE = Fskip_chars_backward (TOP, arg, Qnil); |
| 428 | 1509 break; |
| 1510 } | |
| 1511 | |
| 1512 case Bunwind_protect: | |
| 1513 record_unwind_protect (Fprogn, POP); | |
| 1514 break; | |
| 1515 | |
| 1516 case Bcondition_case: | |
| 1517 { | |
| 1518 Lisp_Object arg2 = POP; /* handlers */ | |
| 1519 Lisp_Object arg1 = POP; /* bodyform */ | |
|
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Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
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|
1520 TOP_LVALUE = condition_case_3 (arg1, TOP, arg2); |
| 428 | 1521 break; |
| 1522 } | |
| 1523 | |
| 1524 case Bset_marker: | |
| 1525 { | |
| 1526 Lisp_Object arg2 = POP; | |
| 1527 Lisp_Object arg1 = POP; | |
|
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8f1ee2d15784
Support full Common Lisp multiple values in C.
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parents:
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|
1528 TOP_LVALUE = Fset_marker (TOP, arg1, arg2); |
| 428 | 1529 break; |
| 1530 } | |
| 1531 | |
| 1532 case Brem: | |
| 1533 { | |
| 1534 Lisp_Object arg = POP; | |
|
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8f1ee2d15784
Support full Common Lisp multiple values in C.
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parents:
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diff
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|
1535 TOP_LVALUE = Frem (TOP, arg); |
| 428 | 1536 break; |
| 1537 } | |
| 1538 | |
| 1539 case Bmatch_beginning: | |
|
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8f1ee2d15784
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|
1540 TOP_LVALUE = Fmatch_beginning (TOP); |
| 428 | 1541 break; |
| 1542 | |
| 1543 case Bmatch_end: | |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
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|
1544 TOP_LVALUE = Fmatch_end (TOP); |
| 428 | 1545 break; |
| 1546 | |
| 1547 case Bupcase: | |
|
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8f1ee2d15784
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|
1548 TOP_LVALUE = Fupcase (TOP, Qnil); |
| 428 | 1549 break; |
| 1550 | |
| 1551 case Bdowncase: | |
|
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8f1ee2d15784
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diff
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|
1552 TOP_LVALUE = Fdowncase (TOP, Qnil); |
| 428 | 1553 break; |
| 1554 | |
| 1555 case Bfset: | |
| 1556 { | |
| 1557 Lisp_Object arg = POP; | |
|
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Support full Common Lisp multiple values in C.
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parents:
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diff
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|
1558 TOP_LVALUE = Ffset (TOP, arg); |
| 428 | 1559 break; |
| 1560 } | |
| 1561 | |
| 1562 case Bstring_equal: | |
| 1563 { | |
| 1564 Lisp_Object arg = POP; | |
|
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8f1ee2d15784
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Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1565 TOP_LVALUE = Fstring_equal (TOP, arg); |
| 428 | 1566 break; |
| 1567 } | |
| 1568 | |
| 1569 case Bstring_lessp: | |
| 1570 { | |
| 1571 Lisp_Object arg = POP; | |
|
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8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1572 TOP_LVALUE = Fstring_lessp (TOP, arg); |
| 428 | 1573 break; |
| 1574 } | |
| 1575 | |
| 1576 case Bsubstring: | |
| 1577 { | |
| 1578 Lisp_Object arg2 = POP; | |
| 1579 Lisp_Object arg1 = POP; | |
|
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8f1ee2d15784
Support full Common Lisp multiple values in C.
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parents:
3263
diff
changeset
|
1580 TOP_LVALUE = Fsubstring (TOP, arg1, arg2); |
| 428 | 1581 break; |
| 1582 } | |
| 1583 | |
| 1584 case Bcurrent_column: | |
| 1585 PUSH (make_int (current_column (current_buffer))); | |
| 1586 break; | |
| 1587 | |
| 1588 case Bchar_after: | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1589 TOP_LVALUE = Fchar_after (TOP, Qnil); |
| 428 | 1590 break; |
| 1591 | |
| 1592 case Bindent_to: | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1593 TOP_LVALUE = Findent_to (TOP, Qnil, Qnil); |
| 428 | 1594 break; |
| 1595 | |
| 1596 case Bwiden: | |
| 1597 PUSH (Fwiden (Qnil)); | |
| 1598 break; | |
| 1599 | |
| 1600 case Bfollowing_char: | |
| 1601 PUSH (Ffollowing_char (Qnil)); | |
| 1602 break; | |
| 1603 | |
| 1604 case Bpreceding_char: | |
| 1605 PUSH (Fpreceding_char (Qnil)); | |
| 1606 break; | |
| 1607 | |
| 1608 case Beolp: | |
| 1609 PUSH (Feolp (Qnil)); | |
| 1610 break; | |
| 1611 | |
| 1612 case Beobp: | |
| 1613 PUSH (Feobp (Qnil)); | |
| 1614 break; | |
| 1615 | |
| 1616 case Bbolp: | |
| 1617 PUSH (Fbolp (Qnil)); | |
| 1618 break; | |
| 1619 | |
| 1620 case Bbobp: | |
| 1621 PUSH (Fbobp (Qnil)); | |
| 1622 break; | |
| 1623 | |
| 1624 case Bsave_current_buffer: | |
| 1625 record_unwind_protect (save_current_buffer_restore, | |
| 1626 Fcurrent_buffer ()); | |
| 1627 break; | |
| 1628 | |
| 1629 case Binteractive_p: | |
| 1630 PUSH (Finteractive_p ()); | |
| 1631 break; | |
| 1632 | |
| 1633 case Bforward_char: | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1634 TOP_LVALUE = Fforward_char (TOP, Qnil); |
| 428 | 1635 break; |
| 1636 | |
| 1637 case Bforward_word: | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1638 TOP_LVALUE = Fforward_word (TOP, Qnil); |
| 428 | 1639 break; |
| 1640 | |
| 1641 case Bforward_line: | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1642 TOP_LVALUE = Fforward_line (TOP, Qnil); |
| 428 | 1643 break; |
| 1644 | |
| 1645 case Bchar_syntax: | |
|
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8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1646 TOP_LVALUE = Fchar_syntax (TOP, Qnil); |
| 428 | 1647 break; |
| 1648 | |
| 1649 case Bbuffer_substring: | |
| 1650 { | |
| 1651 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1652 TOP_LVALUE = Fbuffer_substring (TOP, arg, Qnil); |
| 428 | 1653 break; |
| 1654 } | |
| 1655 | |
| 1656 case Bdelete_region: | |
| 1657 { | |
| 1658 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1659 TOP_LVALUE = Fdelete_region (TOP, arg, Qnil); |
| 428 | 1660 break; |
| 1661 } | |
| 1662 | |
| 1663 case Bnarrow_to_region: | |
| 1664 { | |
| 1665 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1666 TOP_LVALUE = Fnarrow_to_region (TOP, arg, Qnil); |
| 428 | 1667 break; |
| 1668 } | |
| 1669 | |
| 1670 case Bend_of_line: | |
|
4677
8f1ee2d15784
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Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1671 TOP_LVALUE = Fend_of_line (TOP, Qnil); |
| 428 | 1672 break; |
| 1673 | |
| 1674 case Btemp_output_buffer_setup: | |
| 1675 temp_output_buffer_setup (TOP); | |
|
4677
8f1ee2d15784
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Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1676 TOP_LVALUE = Vstandard_output; |
| 428 | 1677 break; |
| 1678 | |
| 1679 case Btemp_output_buffer_show: | |
| 1680 { | |
| 1681 Lisp_Object arg = POP; | |
| 1682 temp_output_buffer_show (TOP, Qnil); | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1683 TOP_LVALUE = arg; |
| 428 | 1684 /* GAG ME!! */ |
| 1685 /* pop binding of standard-output */ | |
| 771 | 1686 unbind_to (specpdl_depth() - 1); |
| 428 | 1687 break; |
| 1688 } | |
| 1689 | |
| 1690 case Bold_eq: | |
| 1691 { | |
| 1692 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1693 TOP_LVALUE = HACKEQ_UNSAFE (TOP, arg) ? Qt : Qnil; |
| 428 | 1694 break; |
| 1695 } | |
| 1696 | |
| 1697 case Bold_memq: | |
| 1698 { | |
| 1699 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1700 TOP_LVALUE = Fold_memq (TOP, arg); |
| 428 | 1701 break; |
| 1702 } | |
| 1703 | |
| 1704 case Bold_equal: | |
| 1705 { | |
| 1706 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1707 TOP_LVALUE = Fold_equal (TOP, arg); |
| 428 | 1708 break; |
| 1709 } | |
| 1710 | |
| 1711 case Bold_member: | |
| 1712 { | |
| 1713 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1714 TOP_LVALUE = Fold_member (TOP, arg); |
| 428 | 1715 break; |
| 1716 } | |
| 1717 | |
| 1718 case Bold_assq: | |
| 1719 { | |
| 1720 Lisp_Object arg = POP; | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1721 TOP_LVALUE = Fold_assq (TOP, arg); |
| 428 | 1722 break; |
| 1723 } | |
| 1724 | |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1725 case Bbind_multiple_value_limits: |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1726 { |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1727 Lisp_Object upper = POP, first = TOP, speccount; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1728 |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1729 CHECK_NATNUM (upper); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1730 CHECK_NATNUM (first); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1731 |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1732 speccount = make_int (bind_multiple_value_limits (XINT (first), |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1733 XINT (upper))); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1734 PUSH (upper); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1735 PUSH (speccount); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1736 break; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1737 } |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1738 |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1739 case Bmultiple_value_call: |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1740 { |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1741 n = XINT (POP); |
|
4921
17362f371cc2
add more byte-code assertions and better failure output
Ben Wing <ben@xemacs.org>
parents:
4914
diff
changeset
|
1742 DISCARD_PRESERVING_MULTIPLE_VALUES_UNSAFE (n - 1); |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1743 /* Discard multiple values for the first (function) argument: */ |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1744 TOP_LVALUE = TOP; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1745 TOP_LVALUE = multiple_value_call (n, TOP_ADDRESS); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1746 break; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1747 } |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1748 |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1749 case Bmultiple_value_list_internal: |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1750 { |
|
4921
17362f371cc2
add more byte-code assertions and better failure output
Ben Wing <ben@xemacs.org>
parents:
4914
diff
changeset
|
1751 DISCARD_PRESERVING_MULTIPLE_VALUES_UNSAFE (3); |
|
4677
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1752 TOP_LVALUE = multiple_value_list_internal (4, TOP_ADDRESS); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1753 break; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1754 } |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1755 |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1756 case Bthrow: |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1757 { |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1758 Lisp_Object arg = POP_WITH_MULTIPLE_VALUES; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1759 |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1760 /* We never throw to a catch tag that is a multiple value: */ |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1761 throw_or_bomb_out (TOP, arg, 0, Qnil, Qnil); |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1762 break; |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1763 } |
|
8f1ee2d15784
Support full Common Lisp multiple values in C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3263
diff
changeset
|
1764 |
| 428 | 1765 default: |
|
4914
1628e3b9601a
When aborting due to unknown opcode, output more descriptive msg
Ben Wing <ben@xemacs.org>
parents:
4910
diff
changeset
|
1766 { |
|
1628e3b9601a
When aborting due to unknown opcode, output more descriptive msg
Ben Wing <ben@xemacs.org>
parents:
4910
diff
changeset
|
1767 Ascbyte msg[100]; |
|
1628e3b9601a
When aborting due to unknown opcode, output more descriptive msg
Ben Wing <ben@xemacs.org>
parents:
4910
diff
changeset
|
1768 sprintf (msg, "Unknown opcode %d", opcode); |
|
4921
17362f371cc2
add more byte-code assertions and better failure output
Ben Wing <ben@xemacs.org>
parents:
4914
diff
changeset
|
1769 bytecode_abort_with_message (msg); |
|
4914
1628e3b9601a
When aborting due to unknown opcode, output more descriptive msg
Ben Wing <ben@xemacs.org>
parents:
4910
diff
changeset
|
1770 } |
| 428 | 1771 break; |
| 1772 } | |
| 1773 return stack_ptr; | |
| 1774 } | |
| 1775 | |
| 1776 | |
| 563 | 1777 DOESNT_RETURN |
|
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1778 invalid_byte_code (const Ascbyte *reason, Lisp_Object frob) |
| 428 | 1779 { |
| 563 | 1780 signal_error (Qinvalid_byte_code, reason, frob); |
| 428 | 1781 } |
| 1782 | |
| 1783 /* Check for valid opcodes. Change this when adding new opcodes. */ | |
| 1784 static void | |
| 1785 check_opcode (Opcode opcode) | |
| 1786 { | |
| 1787 if ((opcode < Bvarref) || | |
| 1788 (opcode == 0251) || | |
| 1789 (opcode > Bassq && opcode < Bconstant)) | |
| 563 | 1790 invalid_byte_code ("invalid opcode in instruction stream", |
| 1791 make_int (opcode)); | |
| 428 | 1792 } |
| 1793 | |
| 1794 /* Check that IDX is a valid offset into the `constants' vector */ | |
| 1795 static void | |
| 1796 check_constants_index (int idx, Lisp_Object constants) | |
| 1797 { | |
| 1798 if (idx < 0 || idx >= XVECTOR_LENGTH (constants)) | |
| 563 | 1799 signal_ferror |
| 1800 (Qinvalid_byte_code, | |
| 1801 "reference %d to constants array out of range 0, %ld", | |
| 428 | 1802 idx, XVECTOR_LENGTH (constants) - 1); |
| 1803 } | |
| 1804 | |
| 1805 /* Get next character from Lisp instructions string. */ | |
| 563 | 1806 #define READ_INSTRUCTION_CHAR(lvalue) do { \ |
| 867 | 1807 (lvalue) = itext_ichar (ptr); \ |
| 1808 INC_IBYTEPTR (ptr); \ | |
| 563 | 1809 *icounts_ptr++ = program_ptr - program; \ |
| 1810 if (lvalue > UCHAR_MAX) \ | |
| 1811 invalid_byte_code \ | |
| 1812 ("Invalid character in byte code string", make_char (lvalue)); \ | |
| 428 | 1813 } while (0) |
| 1814 | |
| 1815 /* Get opcode from Lisp instructions string. */ | |
| 1816 #define READ_OPCODE do { \ | |
| 1817 unsigned int c; \ | |
| 1818 READ_INSTRUCTION_CHAR (c); \ | |
| 1819 opcode = (Opcode) c; \ | |
| 1820 } while (0) | |
| 1821 | |
| 1822 /* Get next operand, a uint8, from Lisp instructions string. */ | |
| 1823 #define READ_OPERAND_1 do { \ | |
| 1824 READ_INSTRUCTION_CHAR (arg); \ | |
| 1825 argsize = 1; \ | |
| 1826 } while (0) | |
| 1827 | |
| 1828 /* Get next operand, a uint16, from Lisp instructions string. */ | |
| 1829 #define READ_OPERAND_2 do { \ | |
| 1830 unsigned int arg1, arg2; \ | |
| 1831 READ_INSTRUCTION_CHAR (arg1); \ | |
| 1832 READ_INSTRUCTION_CHAR (arg2); \ | |
| 1833 arg = arg1 + (arg2 << 8); \ | |
| 1834 argsize = 2; \ | |
| 1835 } while (0) | |
| 1836 | |
| 1837 /* Write 1 byte to PTR, incrementing PTR */ | |
| 1838 #define WRITE_INT8(value, ptr) do { \ | |
| 1839 *((ptr)++) = (value); \ | |
| 1840 } while (0) | |
| 1841 | |
| 1842 /* Write 2 bytes to PTR, incrementing PTR */ | |
| 1843 #define WRITE_INT16(value, ptr) do { \ | |
| 1844 WRITE_INT8 (((unsigned) (value)) & 0x00ff, (ptr)); \ | |
| 1845 WRITE_INT8 (((unsigned) (value)) >> 8 , (ptr)); \ | |
| 1846 } while (0) | |
| 1847 | |
| 1848 /* We've changed our minds about the opcode we've already written. */ | |
| 1849 #define REWRITE_OPCODE(new_opcode) ((void) (program_ptr[-1] = new_opcode)) | |
| 1850 | |
| 1851 /* Encode an op arg within the opcode, or as a 1 or 2-byte operand. */ | |
| 1852 #define WRITE_NARGS(base_opcode) do { \ | |
| 1853 if (arg <= 5) \ | |
| 1854 { \ | |
| 1855 REWRITE_OPCODE (base_opcode + arg); \ | |
| 1856 } \ | |
| 1857 else if (arg <= UCHAR_MAX) \ | |
| 1858 { \ | |
| 1859 REWRITE_OPCODE (base_opcode + 6); \ | |
| 1860 WRITE_INT8 (arg, program_ptr); \ | |
| 1861 } \ | |
| 1862 else \ | |
| 1863 { \ | |
| 1864 REWRITE_OPCODE (base_opcode + 7); \ | |
| 1865 WRITE_INT16 (arg, program_ptr); \ | |
| 1866 } \ | |
| 1867 } while (0) | |
| 1868 | |
| 1869 /* Encode a constants reference within the opcode, or as a 2-byte operand. */ | |
| 1870 #define WRITE_CONSTANT do { \ | |
| 1871 check_constants_index(arg, constants); \ | |
| 1872 if (arg <= UCHAR_MAX - Bconstant) \ | |
| 1873 { \ | |
| 1874 REWRITE_OPCODE (Bconstant + arg); \ | |
| 1875 } \ | |
| 1876 else \ | |
| 1877 { \ | |
| 1878 REWRITE_OPCODE (Bconstant2); \ | |
| 1879 WRITE_INT16 (arg, program_ptr); \ | |
| 1880 } \ | |
| 1881 } while (0) | |
| 1882 | |
| 1883 #define WRITE_OPCODE WRITE_INT8 (opcode, program_ptr) | |
| 1884 | |
| 1885 /* Compile byte code instructions into free space provided by caller, with | |
| 1886 size >= (2 * string_char_length (instructions) + 1) * sizeof (Opbyte). | |
| 1887 Returns length of compiled code. */ | |
| 1888 static void | |
| 1889 optimize_byte_code (/* in */ | |
| 1890 Lisp_Object instructions, | |
| 1891 Lisp_Object constants, | |
| 1892 /* out */ | |
| 442 | 1893 Opbyte * const program, |
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1894 Elemcount * const program_length, |
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1895 Elemcount * const varbind_count) |
| 428 | 1896 { |
| 647 | 1897 Bytecount instructions_length = XSTRING_LENGTH (instructions); |
| 665 | 1898 Elemcount comfy_size = (Elemcount) (2 * instructions_length); |
| 428 | 1899 |
| 442 | 1900 int * const icounts = alloca_array (int, comfy_size); |
| 428 | 1901 int * icounts_ptr = icounts; |
| 1902 | |
| 1903 /* We maintain a table of jumps in the source code. */ | |
| 1904 struct jump | |
| 1905 { | |
| 1906 int from; | |
| 1907 int to; | |
| 1908 }; | |
| 442 | 1909 struct jump * const jumps = alloca_array (struct jump, comfy_size); |
| 428 | 1910 struct jump *jumps_ptr = jumps; |
| 1911 | |
| 1912 Opbyte *program_ptr = program; | |
| 1913 | |
| 867 | 1914 const Ibyte *ptr = XSTRING_DATA (instructions); |
| 1915 const Ibyte * const end = ptr + instructions_length; | |
| 428 | 1916 |
| 1917 *varbind_count = 0; | |
| 1918 | |
| 1919 while (ptr < end) | |
| 1920 { | |
| 1921 Opcode opcode; | |
| 1922 int arg; | |
| 1923 int argsize = 0; | |
| 1924 READ_OPCODE; | |
| 1925 WRITE_OPCODE; | |
| 1926 | |
| 1927 switch (opcode) | |
| 1928 { | |
| 1929 Lisp_Object val; | |
| 1930 | |
| 1931 case Bvarref+7: READ_OPERAND_2; goto do_varref; | |
| 1932 case Bvarref+6: READ_OPERAND_1; goto do_varref; | |
| 1933 case Bvarref: case Bvarref+1: case Bvarref+2: | |
| 1934 case Bvarref+3: case Bvarref+4: case Bvarref+5: | |
| 1935 arg = opcode - Bvarref; | |
| 1936 do_varref: | |
| 1937 check_constants_index (arg, constants); | |
| 1938 val = XVECTOR_DATA (constants) [arg]; | |
| 1939 if (!SYMBOLP (val)) | |
| 563 | 1940 invalid_byte_code ("variable reference to non-symbol", val); |
| 428 | 1941 if (EQ (val, Qnil) || EQ (val, Qt) || (SYMBOL_IS_KEYWORD (val))) |
| 563 | 1942 invalid_byte_code ("variable reference to constant symbol", val); |
| 428 | 1943 WRITE_NARGS (Bvarref); |
| 1944 break; | |
| 1945 | |
| 1946 case Bvarset+7: READ_OPERAND_2; goto do_varset; | |
| 1947 case Bvarset+6: READ_OPERAND_1; goto do_varset; | |
| 1948 case Bvarset: case Bvarset+1: case Bvarset+2: | |
| 1949 case Bvarset+3: case Bvarset+4: case Bvarset+5: | |
| 1950 arg = opcode - Bvarset; | |
| 1951 do_varset: | |
| 1952 check_constants_index (arg, constants); | |
| 1953 val = XVECTOR_DATA (constants) [arg]; | |
| 1954 if (!SYMBOLP (val)) | |
| 563 | 1955 wtaerror ("attempt to set non-symbol", val); |
| 428 | 1956 if (EQ (val, Qnil) || EQ (val, Qt)) |
| 563 | 1957 signal_error (Qsetting_constant, 0, val); |
| 428 | 1958 /* Ignore assignments to keywords by converting to Bdiscard. |
| 1959 For backward compatibility only - we'd like to make this an error. */ | |
| 1960 if (SYMBOL_IS_KEYWORD (val)) | |
| 1961 REWRITE_OPCODE (Bdiscard); | |
| 1962 else | |
| 1963 WRITE_NARGS (Bvarset); | |
| 1964 break; | |
| 1965 | |
| 1966 case Bvarbind+7: READ_OPERAND_2; goto do_varbind; | |
| 1967 case Bvarbind+6: READ_OPERAND_1; goto do_varbind; | |
| 1968 case Bvarbind: case Bvarbind+1: case Bvarbind+2: | |
| 1969 case Bvarbind+3: case Bvarbind+4: case Bvarbind+5: | |
| 1970 arg = opcode - Bvarbind; | |
| 1971 do_varbind: | |
| 1972 (*varbind_count)++; | |
| 1973 check_constants_index (arg, constants); | |
| 1974 val = XVECTOR_DATA (constants) [arg]; | |
| 1975 if (!SYMBOLP (val)) | |
| 563 | 1976 wtaerror ("attempt to let-bind non-symbol", val); |
| 428 | 1977 if (EQ (val, Qnil) || EQ (val, Qt) || (SYMBOL_IS_KEYWORD (val))) |
| 563 | 1978 signal_error (Qsetting_constant, |
| 1979 "attempt to let-bind constant symbol", val); | |
| 428 | 1980 WRITE_NARGS (Bvarbind); |
| 1981 break; | |
| 1982 | |
| 1983 case Bcall+7: READ_OPERAND_2; goto do_call; | |
| 1984 case Bcall+6: READ_OPERAND_1; goto do_call; | |
| 1985 case Bcall: case Bcall+1: case Bcall+2: | |
| 1986 case Bcall+3: case Bcall+4: case Bcall+5: | |
| 1987 arg = opcode - Bcall; | |
| 1988 do_call: | |
| 1989 WRITE_NARGS (Bcall); | |
| 1990 break; | |
| 1991 | |
| 1992 case Bunbind+7: READ_OPERAND_2; goto do_unbind; | |
| 1993 case Bunbind+6: READ_OPERAND_1; goto do_unbind; | |
| 1994 case Bunbind: case Bunbind+1: case Bunbind+2: | |
| 1995 case Bunbind+3: case Bunbind+4: case Bunbind+5: | |
| 1996 arg = opcode - Bunbind; | |
| 1997 do_unbind: | |
| 1998 WRITE_NARGS (Bunbind); | |
| 1999 break; | |
| 2000 | |
| 2001 case Bgoto: | |
| 2002 case Bgotoifnil: | |
| 2003 case Bgotoifnonnil: | |
| 2004 case Bgotoifnilelsepop: | |
| 2005 case Bgotoifnonnilelsepop: | |
| 2006 READ_OPERAND_2; | |
| 2007 /* Make program_ptr-relative */ | |
| 2008 arg += icounts - (icounts_ptr - argsize); | |
| 2009 goto do_jump; | |
| 2010 | |
| 2011 case BRgoto: | |
| 2012 case BRgotoifnil: | |
| 2013 case BRgotoifnonnil: | |
| 2014 case BRgotoifnilelsepop: | |
| 2015 case BRgotoifnonnilelsepop: | |
| 2016 READ_OPERAND_1; | |
| 2017 /* Make program_ptr-relative */ | |
| 2018 arg -= 127; | |
| 2019 do_jump: | |
| 2020 /* Record program-relative goto addresses in `jumps' table */ | |
| 2021 jumps_ptr->from = icounts_ptr - icounts - argsize; | |
| 2022 jumps_ptr->to = jumps_ptr->from + arg; | |
| 2023 jumps_ptr++; | |
| 2024 if (arg >= -1 && arg <= argsize) | |
| 563 | 2025 invalid_byte_code ("goto instruction is its own target", Qunbound); |
| 428 | 2026 if (arg <= SCHAR_MIN || |
| 2027 arg > SCHAR_MAX) | |
| 2028 { | |
| 2029 if (argsize == 1) | |
| 2030 REWRITE_OPCODE (opcode + Bgoto - BRgoto); | |
| 2031 WRITE_INT16 (arg, program_ptr); | |
| 2032 } | |
| 2033 else | |
| 2034 { | |
| 2035 if (argsize == 2) | |
| 2036 REWRITE_OPCODE (opcode + BRgoto - Bgoto); | |
| 2037 WRITE_INT8 (arg, program_ptr); | |
| 2038 } | |
| 2039 break; | |
| 2040 | |
| 2041 case Bconstant2: | |
| 2042 READ_OPERAND_2; | |
| 2043 WRITE_CONSTANT; | |
| 2044 break; | |
| 2045 | |
| 2046 case BlistN: | |
| 2047 case BconcatN: | |
| 2048 case BinsertN: | |
| 2049 READ_OPERAND_1; | |
| 2050 WRITE_INT8 (arg, program_ptr); | |
| 2051 break; | |
| 2052 | |
| 2053 default: | |
| 2054 if (opcode < Bconstant) | |
| 2055 check_opcode (opcode); | |
| 2056 else | |
| 2057 { | |
| 2058 arg = opcode - Bconstant; | |
| 2059 WRITE_CONSTANT; | |
| 2060 } | |
| 2061 break; | |
| 2062 } | |
| 2063 } | |
| 2064 | |
| 2065 /* Fix up jumps table to refer to NEW offsets. */ | |
| 2066 { | |
| 2067 struct jump *j; | |
| 2068 for (j = jumps; j < jumps_ptr; j++) | |
| 2069 { | |
| 2070 #ifdef ERROR_CHECK_BYTE_CODE | |
| 2071 assert (j->from < icounts_ptr - icounts); | |
| 2072 assert (j->to < icounts_ptr - icounts); | |
| 2073 #endif | |
| 2074 j->from = icounts[j->from]; | |
| 2075 j->to = icounts[j->to]; | |
| 2076 #ifdef ERROR_CHECK_BYTE_CODE | |
| 2077 assert (j->from < program_ptr - program); | |
| 2078 assert (j->to < program_ptr - program); | |
| 2079 check_opcode ((Opcode) (program[j->from-1])); | |
| 2080 #endif | |
| 2081 check_opcode ((Opcode) (program[j->to])); | |
| 2082 } | |
| 2083 } | |
| 2084 | |
| 2085 /* Fixup jumps in byte-code until no more fixups needed */ | |
| 2086 { | |
| 2087 int more_fixups_needed = 1; | |
| 2088 | |
| 2089 while (more_fixups_needed) | |
| 2090 { | |
| 2091 struct jump *j; | |
| 2092 more_fixups_needed = 0; | |
| 2093 for (j = jumps; j < jumps_ptr; j++) | |
| 2094 { | |
| 2095 int from = j->from; | |
| 2096 int to = j->to; | |
| 2097 int jump = to - from; | |
| 2098 Opbyte *p = program + from; | |
| 2099 Opcode opcode = (Opcode) p[-1]; | |
| 2100 if (!more_fixups_needed) | |
| 2101 check_opcode ((Opcode) p[jump]); | |
| 2102 assert (to >= 0 && program + to < program_ptr); | |
| 2103 switch (opcode) | |
| 2104 { | |
| 2105 case Bgoto: | |
| 2106 case Bgotoifnil: | |
| 2107 case Bgotoifnonnil: | |
| 2108 case Bgotoifnilelsepop: | |
| 2109 case Bgotoifnonnilelsepop: | |
| 2110 WRITE_INT16 (jump, p); | |
| 2111 break; | |
| 2112 | |
| 2113 case BRgoto: | |
| 2114 case BRgotoifnil: | |
| 2115 case BRgotoifnonnil: | |
| 2116 case BRgotoifnilelsepop: | |
| 2117 case BRgotoifnonnilelsepop: | |
| 2118 if (jump > SCHAR_MIN && | |
| 2119 jump <= SCHAR_MAX) | |
| 2120 { | |
| 2121 WRITE_INT8 (jump, p); | |
| 2122 } | |
| 2123 else /* barf */ | |
| 2124 { | |
| 2125 struct jump *jj; | |
| 2126 for (jj = jumps; jj < jumps_ptr; jj++) | |
| 2127 { | |
| 2128 assert (jj->from < program_ptr - program); | |
| 2129 assert (jj->to < program_ptr - program); | |
| 2130 if (jj->from > from) jj->from++; | |
| 2131 if (jj->to > from) jj->to++; | |
| 2132 } | |
| 2133 p[-1] += Bgoto - BRgoto; | |
| 2134 more_fixups_needed = 1; | |
| 2135 memmove (p+1, p, program_ptr++ - p); | |
| 2136 WRITE_INT16 (jump, p); | |
| 2137 } | |
| 2138 break; | |
| 2139 | |
| 2140 default: | |
| 2500 | 2141 ABORT(); |
| 428 | 2142 break; |
| 2143 } | |
| 2144 } | |
| 2145 } | |
| 2146 } | |
| 2147 | |
| 2148 /* *program_ptr++ = 0; */ | |
| 2149 *program_length = program_ptr - program; | |
| 2150 } | |
| 2151 | |
| 2152 /* Optimize the byte code and store the optimized program, only | |
| 2153 understood by bytecode.c, in an opaque object in the | |
| 2154 instructions slot of the Compiled_Function object. */ | |
| 2155 void | |
| 2156 optimize_compiled_function (Lisp_Object compiled_function) | |
| 2157 { | |
| 2158 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (compiled_function); | |
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2159 Elemcount program_length; |
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2160 Elemcount varbind_count; |
| 428 | 2161 Opbyte *program; |
| 2162 | |
| 1737 | 2163 { |
| 2164 int minargs = 0, maxargs = 0, totalargs = 0; | |
| 2165 int optional_p = 0, rest_p = 0, i = 0; | |
| 2166 { | |
| 2167 LIST_LOOP_2 (arg, f->arglist) | |
| 2168 { | |
| 2169 if (EQ (arg, Qand_optional)) | |
| 2170 optional_p = 1; | |
| 2171 else if (EQ (arg, Qand_rest)) | |
| 2172 rest_p = 1; | |
| 2173 else | |
| 2174 { | |
| 2175 if (rest_p) | |
| 2176 { | |
| 2177 maxargs = MANY; | |
| 2178 totalargs++; | |
| 2179 break; | |
| 2180 } | |
| 2181 if (!optional_p) | |
| 2182 minargs++; | |
| 2183 maxargs++; | |
| 2184 totalargs++; | |
| 2185 } | |
| 2186 } | |
| 2187 } | |
| 2188 | |
| 2189 if (totalargs) | |
| 3092 | 2190 #ifdef NEW_GC |
| 2191 f->arguments = make_compiled_function_args (totalargs); | |
| 2192 #else /* not NEW_GC */ | |
| 1737 | 2193 f->args = xnew_array (Lisp_Object, totalargs); |
| 3092 | 2194 #endif /* not NEW_GC */ |
| 1737 | 2195 |
| 2196 { | |
| 2197 LIST_LOOP_2 (arg, f->arglist) | |
| 2198 { | |
| 2199 if (!EQ (arg, Qand_optional) && !EQ (arg, Qand_rest)) | |
| 3092 | 2200 #ifdef NEW_GC |
| 2201 XCOMPILED_FUNCTION_ARGS_DATA (f->arguments)[i++] = arg; | |
| 2202 #else /* not NEW_GC */ | |
| 1737 | 2203 f->args[i++] = arg; |
| 3092 | 2204 #endif /* not NEW_GC */ |
| 1737 | 2205 } |
| 2206 } | |
| 2207 | |
| 2208 f->max_args = maxargs; | |
| 2209 f->min_args = minargs; | |
| 2210 f->args_in_array = totalargs; | |
| 2211 } | |
| 2212 | |
| 428 | 2213 /* If we have not actually read the bytecode string |
| 2214 and constants vector yet, fetch them from the file. */ | |
| 2215 if (CONSP (f->instructions)) | |
| 2216 Ffetch_bytecode (compiled_function); | |
| 2217 | |
| 2218 if (STRINGP (f->instructions)) | |
| 2219 { | |
| 826 | 2220 /* XSTRING_LENGTH() is more efficient than string_char_length(), |
| 428 | 2221 which would be slightly more `proper' */ |
| 2222 program = alloca_array (Opbyte, 1 + 2 * XSTRING_LENGTH (f->instructions)); | |
| 2223 optimize_byte_code (f->instructions, f->constants, | |
| 2224 program, &program_length, &varbind_count); | |
| 2500 | 2225 f->specpdl_depth = (unsigned short) (XINT (Flength (f->arglist)) + |
| 2226 varbind_count); | |
| 428 | 2227 f->instructions = |
| 440 | 2228 make_opaque (program, program_length * sizeof (Opbyte)); |
| 428 | 2229 } |
| 2230 | |
| 2231 assert (OPAQUEP (f->instructions)); | |
| 2232 } | |
| 2233 | |
| 2234 /************************************************************************/ | |
| 2235 /* The compiled-function object type */ | |
| 2236 /************************************************************************/ | |
| 3092 | 2237 |
| 428 | 2238 static void |
| 2239 print_compiled_function (Lisp_Object obj, Lisp_Object printcharfun, | |
| 2240 int escapeflag) | |
| 2241 { | |
| 2242 /* This function can GC */ | |
| 2243 Lisp_Compiled_Function *f = | |
| 2244 XCOMPILED_FUNCTION (obj); /* GC doesn't relocate */ | |
| 2245 int docp = f->flags.documentationp; | |
| 2246 int intp = f->flags.interactivep; | |
| 2247 struct gcpro gcpro1, gcpro2; | |
| 2248 GCPRO2 (obj, printcharfun); | |
| 2249 | |
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2250 write_ascstring (printcharfun, print_readably ? "#[" : "#<compiled-function "); |
| 428 | 2251 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK |
| 2252 if (!print_readably) | |
| 2253 { | |
| 2254 Lisp_Object ann = compiled_function_annotation (f); | |
| 2255 if (!NILP (ann)) | |
| 800 | 2256 write_fmt_string_lisp (printcharfun, "(from %S) ", 1, ann); |
| 428 | 2257 } |
| 2258 #endif /* COMPILED_FUNCTION_ANNOTATION_HACK */ | |
| 2259 /* COMPILED_ARGLIST = 0 */ | |
| 2260 print_internal (compiled_function_arglist (f), printcharfun, escapeflag); | |
| 2261 | |
| 2262 /* COMPILED_INSTRUCTIONS = 1 */ | |
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2263 write_ascstring (printcharfun, " "); |
| 428 | 2264 { |
| 2265 struct gcpro ngcpro1; | |
| 2266 Lisp_Object instructions = compiled_function_instructions (f); | |
| 2267 NGCPRO1 (instructions); | |
| 2268 if (STRINGP (instructions) && !print_readably) | |
| 2269 { | |
| 2270 /* We don't usually want to see that junk in the bytecode. */ | |
| 800 | 2271 write_fmt_string (printcharfun, "\"...(%ld)\"", |
| 826 | 2272 (long) string_char_length (instructions)); |
| 428 | 2273 } |
| 2274 else | |
| 2275 print_internal (instructions, printcharfun, escapeflag); | |
| 2276 NUNGCPRO; | |
| 2277 } | |
| 2278 | |
| 2279 /* COMPILED_CONSTANTS = 2 */ | |
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2280 write_ascstring (printcharfun, " "); |
| 428 | 2281 print_internal (compiled_function_constants (f), printcharfun, escapeflag); |
| 2282 | |
| 2283 /* COMPILED_STACK_DEPTH = 3 */ | |
| 800 | 2284 write_fmt_string (printcharfun, " %d", compiled_function_stack_depth (f)); |
| 428 | 2285 |
| 2286 /* COMPILED_DOC_STRING = 4 */ | |
| 2287 if (docp || intp) | |
| 2288 { | |
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changeset
|
2289 write_ascstring (printcharfun, " "); |
| 428 | 2290 print_internal (compiled_function_documentation (f), printcharfun, |
| 2291 escapeflag); | |
| 2292 } | |
| 2293 | |
| 2294 /* COMPILED_INTERACTIVE = 5 */ | |
| 2295 if (intp) | |
| 2296 { | |
|
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2297 write_ascstring (printcharfun, " "); |
| 428 | 2298 print_internal (compiled_function_interactive (f), printcharfun, |
| 2299 escapeflag); | |
| 2300 } | |
| 2301 | |
| 2302 UNGCPRO; | |
|
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2303 write_ascstring (printcharfun, print_readably ? "]" : ">"); |
| 428 | 2304 } |
| 2305 | |
| 2306 | |
| 2307 static Lisp_Object | |
| 2308 mark_compiled_function (Lisp_Object obj) | |
| 2309 { | |
| 2310 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (obj); | |
| 814 | 2311 int i; |
| 428 | 2312 |
| 2313 mark_object (f->instructions); | |
| 2314 mark_object (f->arglist); | |
| 2315 mark_object (f->doc_and_interactive); | |
| 2316 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK | |
| 2317 mark_object (f->annotated); | |
| 2318 #endif | |
| 814 | 2319 for (i = 0; i < f->args_in_array; i++) |
| 3092 | 2320 #ifdef NEW_GC |
| 2321 mark_object (XCOMPILED_FUNCTION_ARGS_DATA (f->arguments)[i]); | |
| 2322 #else /* not NEW_GC */ | |
| 814 | 2323 mark_object (f->args[i]); |
| 3092 | 2324 #endif /* not NEW_GC */ |
| 814 | 2325 |
| 428 | 2326 /* tail-recurse on constants */ |
| 2327 return f->constants; | |
| 2328 } | |
| 2329 | |
| 2330 static int | |
|
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2331 compiled_function_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, |
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|
2332 int UNUSED (foldcase)) |
| 428 | 2333 { |
| 2334 Lisp_Compiled_Function *f1 = XCOMPILED_FUNCTION (obj1); | |
| 2335 Lisp_Compiled_Function *f2 = XCOMPILED_FUNCTION (obj2); | |
| 2336 return | |
| 2337 (f1->flags.documentationp == f2->flags.documentationp && | |
| 2338 f1->flags.interactivep == f2->flags.interactivep && | |
| 2339 f1->flags.domainp == f2->flags.domainp && /* I18N3 */ | |
| 2340 internal_equal (compiled_function_instructions (f1), | |
| 2341 compiled_function_instructions (f2), depth + 1) && | |
| 2342 internal_equal (f1->constants, f2->constants, depth + 1) && | |
| 2343 internal_equal (f1->arglist, f2->arglist, depth + 1) && | |
| 2344 internal_equal (f1->doc_and_interactive, | |
| 2345 f2->doc_and_interactive, depth + 1)); | |
| 2346 } | |
| 2347 | |
| 665 | 2348 static Hashcode |
| 428 | 2349 compiled_function_hash (Lisp_Object obj, int depth) |
| 2350 { | |
| 2351 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (obj); | |
| 2352 return HASH3 ((f->flags.documentationp << 2) + | |
| 2353 (f->flags.interactivep << 1) + | |
| 2354 f->flags.domainp, | |
| 2355 internal_hash (f->instructions, depth + 1), | |
| 2356 internal_hash (f->constants, depth + 1)); | |
| 2357 } | |
| 2358 | |
| 1204 | 2359 static const struct memory_description compiled_function_description[] = { |
| 814 | 2360 { XD_INT, offsetof (Lisp_Compiled_Function, args_in_array) }, |
| 3092 | 2361 #ifdef NEW_GC |
| 2362 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, arguments) }, | |
| 2363 #else /* not NEW_GC */ | |
| 2364 { XD_BLOCK_PTR, offsetof (Lisp_Compiled_Function, args), | |
| 2551 | 2365 XD_INDIRECT (0, 0), { &lisp_object_description } }, |
| 3092 | 2366 #endif /* not NEW_GC */ |
| 440 | 2367 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, instructions) }, |
| 2368 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, constants) }, | |
| 2369 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, arglist) }, | |
| 2370 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, doc_and_interactive) }, | |
| 428 | 2371 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK |
| 440 | 2372 { XD_LISP_OBJECT, offsetof (Lisp_Compiled_Function, annotated) }, |
| 428 | 2373 #endif |
| 2374 { XD_END } | |
| 2375 }; | |
| 2376 | |
| 934 | 2377 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("compiled-function", compiled_function, |
| 2378 1, /*dumpable_flag*/ | |
| 2379 mark_compiled_function, | |
| 2380 print_compiled_function, 0, | |
| 2381 compiled_function_equal, | |
| 2382 compiled_function_hash, | |
| 2383 compiled_function_description, | |
| 2384 Lisp_Compiled_Function); | |
| 3092 | 2385 |
| 428 | 2386 |
| 2387 DEFUN ("compiled-function-p", Fcompiled_function_p, 1, 1, 0, /* | |
| 2388 Return t if OBJECT is a byte-compiled function object. | |
| 2389 */ | |
| 2390 (object)) | |
| 2391 { | |
| 2392 return COMPILED_FUNCTIONP (object) ? Qt : Qnil; | |
| 2393 } | |
| 2394 | |
| 2395 /************************************************************************/ | |
| 2396 /* compiled-function object accessor functions */ | |
| 2397 /************************************************************************/ | |
| 2398 | |
| 2399 Lisp_Object | |
| 2400 compiled_function_arglist (Lisp_Compiled_Function *f) | |
| 2401 { | |
| 2402 return f->arglist; | |
| 2403 } | |
| 2404 | |
| 2405 Lisp_Object | |
| 2406 compiled_function_instructions (Lisp_Compiled_Function *f) | |
| 2407 { | |
| 2408 if (! OPAQUEP (f->instructions)) | |
| 2409 return f->instructions; | |
| 2410 | |
| 2411 { | |
| 2412 /* Invert action performed by optimize_byte_code() */ | |
| 2413 Lisp_Opaque *opaque = XOPAQUE (f->instructions); | |
| 2414 | |
| 867 | 2415 Ibyte * const buffer = |
| 2367 | 2416 alloca_ibytes (OPAQUE_SIZE (opaque) * MAX_ICHAR_LEN); |
| 867 | 2417 Ibyte *bp = buffer; |
| 428 | 2418 |
| 442 | 2419 const Opbyte * const program = (const Opbyte *) OPAQUE_DATA (opaque); |
| 2420 const Opbyte *program_ptr = program; | |
| 2421 const Opbyte * const program_end = program_ptr + OPAQUE_SIZE (opaque); | |
| 428 | 2422 |
| 2423 while (program_ptr < program_end) | |
| 2424 { | |
| 2425 Opcode opcode = (Opcode) READ_UINT_1; | |
| 867 | 2426 bp += set_itext_ichar (bp, opcode); |
| 428 | 2427 switch (opcode) |
| 2428 { | |
| 2429 case Bvarref+7: | |
| 2430 case Bvarset+7: | |
| 2431 case Bvarbind+7: | |
| 2432 case Bcall+7: | |
| 2433 case Bunbind+7: | |
| 2434 case Bconstant2: | |
| 867 | 2435 bp += set_itext_ichar (bp, READ_UINT_1); |
| 2436 bp += set_itext_ichar (bp, READ_UINT_1); | |
| 428 | 2437 break; |
| 2438 | |
| 2439 case Bvarref+6: | |
| 2440 case Bvarset+6: | |
| 2441 case Bvarbind+6: | |
| 2442 case Bcall+6: | |
| 2443 case Bunbind+6: | |
| 2444 case BlistN: | |
| 2445 case BconcatN: | |
| 2446 case BinsertN: | |
| 867 | 2447 bp += set_itext_ichar (bp, READ_UINT_1); |
| 428 | 2448 break; |
| 2449 | |
| 2450 case Bgoto: | |
| 2451 case Bgotoifnil: | |
| 2452 case Bgotoifnonnil: | |
| 2453 case Bgotoifnilelsepop: | |
| 2454 case Bgotoifnonnilelsepop: | |
| 2455 { | |
| 2456 int jump = READ_INT_2; | |
| 2457 Opbyte buf2[2]; | |
| 2458 Opbyte *buf2p = buf2; | |
| 2459 /* Convert back to program-relative address */ | |
| 2460 WRITE_INT16 (jump + (program_ptr - 2 - program), buf2p); | |
| 867 | 2461 bp += set_itext_ichar (bp, buf2[0]); |
| 2462 bp += set_itext_ichar (bp, buf2[1]); | |
| 428 | 2463 break; |
| 2464 } | |
| 2465 | |
| 2466 case BRgoto: | |
| 2467 case BRgotoifnil: | |
| 2468 case BRgotoifnonnil: | |
| 2469 case BRgotoifnilelsepop: | |
| 2470 case BRgotoifnonnilelsepop: | |
| 867 | 2471 bp += set_itext_ichar (bp, READ_INT_1 + 127); |
| 428 | 2472 break; |
| 2473 | |
| 2474 default: | |
| 2475 break; | |
| 2476 } | |
| 2477 } | |
| 2478 return make_string (buffer, bp - buffer); | |
| 2479 } | |
| 2480 } | |
| 2481 | |
| 2482 Lisp_Object | |
| 2483 compiled_function_constants (Lisp_Compiled_Function *f) | |
| 2484 { | |
| 2485 return f->constants; | |
| 2486 } | |
| 2487 | |
| 2488 int | |
| 2489 compiled_function_stack_depth (Lisp_Compiled_Function *f) | |
| 2490 { | |
| 2491 return f->stack_depth; | |
| 2492 } | |
| 2493 | |
| 2494 /* The compiled_function->doc_and_interactive slot uses the minimal | |
| 2495 number of conses, based on compiled_function->flags; it may take | |
| 2496 any of the following forms: | |
| 2497 | |
| 2498 doc | |
| 2499 interactive | |
| 2500 domain | |
| 2501 (doc . interactive) | |
| 2502 (doc . domain) | |
| 2503 (interactive . domain) | |
| 2504 (doc . (interactive . domain)) | |
| 2505 */ | |
| 2506 | |
| 2507 /* Caller must check flags.interactivep first */ | |
| 2508 Lisp_Object | |
| 2509 compiled_function_interactive (Lisp_Compiled_Function *f) | |
| 2510 { | |
| 2511 assert (f->flags.interactivep); | |
| 2512 if (f->flags.documentationp && f->flags.domainp) | |
| 2513 return XCAR (XCDR (f->doc_and_interactive)); | |
| 2514 else if (f->flags.documentationp) | |
| 2515 return XCDR (f->doc_and_interactive); | |
| 2516 else if (f->flags.domainp) | |
| 2517 return XCAR (f->doc_and_interactive); | |
| 2518 else | |
| 2519 return f->doc_and_interactive; | |
| 2520 } | |
| 2521 | |
| 2522 /* Caller need not check flags.documentationp first */ | |
| 2523 Lisp_Object | |
| 2524 compiled_function_documentation (Lisp_Compiled_Function *f) | |
| 2525 { | |
| 2526 if (! f->flags.documentationp) | |
| 2527 return Qnil; | |
| 2528 else if (f->flags.interactivep && f->flags.domainp) | |
| 2529 return XCAR (f->doc_and_interactive); | |
| 2530 else if (f->flags.interactivep) | |
| 2531 return XCAR (f->doc_and_interactive); | |
| 2532 else if (f->flags.domainp) | |
| 2533 return XCAR (f->doc_and_interactive); | |
| 2534 else | |
| 2535 return f->doc_and_interactive; | |
| 2536 } | |
| 2537 | |
| 2538 /* Caller need not check flags.domainp first */ | |
| 2539 Lisp_Object | |
| 2540 compiled_function_domain (Lisp_Compiled_Function *f) | |
| 2541 { | |
| 2542 if (! f->flags.domainp) | |
| 2543 return Qnil; | |
| 2544 else if (f->flags.documentationp && f->flags.interactivep) | |
| 2545 return XCDR (XCDR (f->doc_and_interactive)); | |
| 2546 else if (f->flags.documentationp) | |
| 2547 return XCDR (f->doc_and_interactive); | |
| 2548 else if (f->flags.interactivep) | |
| 2549 return XCDR (f->doc_and_interactive); | |
| 2550 else | |
| 2551 return f->doc_and_interactive; | |
| 2552 } | |
| 2553 | |
| 2554 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK | |
| 2555 | |
| 2556 Lisp_Object | |
| 2557 compiled_function_annotation (Lisp_Compiled_Function *f) | |
| 2558 { | |
| 2559 return f->annotated; | |
| 2560 } | |
| 2561 | |
| 2562 #endif | |
| 2563 | |
| 2564 /* used only by Snarf-documentation; there must be doc already. */ | |
| 2565 void | |
| 2566 set_compiled_function_documentation (Lisp_Compiled_Function *f, | |
| 2567 Lisp_Object new_doc) | |
| 2568 { | |
| 2569 assert (f->flags.documentationp); | |
| 2570 assert (INTP (new_doc) || STRINGP (new_doc)); | |
| 2571 | |
| 2572 if (f->flags.interactivep && f->flags.domainp) | |
| 2573 XCAR (f->doc_and_interactive) = new_doc; | |
| 2574 else if (f->flags.interactivep) | |
| 2575 XCAR (f->doc_and_interactive) = new_doc; | |
| 2576 else if (f->flags.domainp) | |
| 2577 XCAR (f->doc_and_interactive) = new_doc; | |
| 2578 else | |
| 2579 f->doc_and_interactive = new_doc; | |
| 2580 } | |
| 2581 | |
| 2582 | |
| 2583 DEFUN ("compiled-function-arglist", Fcompiled_function_arglist, 1, 1, 0, /* | |
| 2584 Return the argument list of the compiled-function object FUNCTION. | |
| 2585 */ | |
| 2586 (function)) | |
| 2587 { | |
| 2588 CHECK_COMPILED_FUNCTION (function); | |
| 2589 return compiled_function_arglist (XCOMPILED_FUNCTION (function)); | |
| 2590 } | |
| 2591 | |
| 2592 DEFUN ("compiled-function-instructions", Fcompiled_function_instructions, 1, 1, 0, /* | |
| 2593 Return the byte-opcode string of the compiled-function object FUNCTION. | |
| 2594 */ | |
| 2595 (function)) | |
| 2596 { | |
| 2597 CHECK_COMPILED_FUNCTION (function); | |
| 2598 return compiled_function_instructions (XCOMPILED_FUNCTION (function)); | |
| 2599 } | |
| 2600 | |
| 2601 DEFUN ("compiled-function-constants", Fcompiled_function_constants, 1, 1, 0, /* | |
| 2602 Return the constants vector of the compiled-function object FUNCTION. | |
| 2603 */ | |
| 2604 (function)) | |
| 2605 { | |
| 2606 CHECK_COMPILED_FUNCTION (function); | |
| 2607 return compiled_function_constants (XCOMPILED_FUNCTION (function)); | |
| 2608 } | |
| 2609 | |
| 2610 DEFUN ("compiled-function-stack-depth", Fcompiled_function_stack_depth, 1, 1, 0, /* | |
| 444 | 2611 Return the maximum stack depth of the compiled-function object FUNCTION. |
| 428 | 2612 */ |
| 2613 (function)) | |
| 2614 { | |
| 2615 CHECK_COMPILED_FUNCTION (function); | |
| 2616 return make_int (compiled_function_stack_depth (XCOMPILED_FUNCTION (function))); | |
| 2617 } | |
| 2618 | |
| 2619 DEFUN ("compiled-function-doc-string", Fcompiled_function_doc_string, 1, 1, 0, /* | |
| 2620 Return the doc string of the compiled-function object FUNCTION, if available. | |
| 2621 Functions that had their doc strings snarfed into the DOC file will have | |
| 2622 an integer returned instead of a string. | |
| 2623 */ | |
| 2624 (function)) | |
| 2625 { | |
| 2626 CHECK_COMPILED_FUNCTION (function); | |
| 2627 return compiled_function_documentation (XCOMPILED_FUNCTION (function)); | |
| 2628 } | |
| 2629 | |
| 2630 DEFUN ("compiled-function-interactive", Fcompiled_function_interactive, 1, 1, 0, /* | |
| 2631 Return the interactive spec of the compiled-function object FUNCTION, or nil. | |
| 2632 If non-nil, the return value will be a list whose first element is | |
| 2633 `interactive' and whose second element is the interactive spec. | |
| 2634 */ | |
| 2635 (function)) | |
| 2636 { | |
| 2637 CHECK_COMPILED_FUNCTION (function); | |
| 2638 return XCOMPILED_FUNCTION (function)->flags.interactivep | |
| 2639 ? list2 (Qinteractive, | |
| 2640 compiled_function_interactive (XCOMPILED_FUNCTION (function))) | |
| 2641 : Qnil; | |
| 2642 } | |
| 2643 | |
| 2644 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK | |
| 2645 | |
| 826 | 2646 DEFUN ("compiled-function-annotation", Fcompiled_function_annotation, 1, 1, 0, /* |
| 428 | 2647 Return the annotation of the compiled-function object FUNCTION, or nil. |
| 2648 The annotation is a piece of information indicating where this | |
| 2649 compiled-function object came from. Generally this will be | |
| 2650 a symbol naming a function; or a string naming a file, if the | |
| 2651 compiled-function object was not defined in a function; or nil, | |
| 2652 if the compiled-function object was not created as a result of | |
| 2653 a `load'. | |
| 2654 */ | |
| 2655 (function)) | |
| 2656 { | |
| 2657 CHECK_COMPILED_FUNCTION (function); | |
| 2658 return compiled_function_annotation (XCOMPILED_FUNCTION (function)); | |
| 2659 } | |
| 2660 | |
| 2661 #endif /* COMPILED_FUNCTION_ANNOTATION_HACK */ | |
| 2662 | |
| 2663 DEFUN ("compiled-function-domain", Fcompiled_function_domain, 1, 1, 0, /* | |
| 2664 Return the domain of the compiled-function object FUNCTION, or nil. | |
| 2665 This is only meaningful if I18N3 was enabled when emacs was compiled. | |
| 2666 */ | |
| 2667 (function)) | |
| 2668 { | |
| 2669 CHECK_COMPILED_FUNCTION (function); | |
| 2670 return XCOMPILED_FUNCTION (function)->flags.domainp | |
| 2671 ? compiled_function_domain (XCOMPILED_FUNCTION (function)) | |
| 2672 : Qnil; | |
| 2673 } | |
| 2674 | |
| 2675 | |
| 2676 | |
| 2677 DEFUN ("fetch-bytecode", Ffetch_bytecode, 1, 1, 0, /* | |
| 2678 If the byte code for compiled function FUNCTION is lazy-loaded, fetch it now. | |
| 2679 */ | |
| 2680 (function)) | |
| 2681 { | |
| 2682 Lisp_Compiled_Function *f; | |
| 2683 CHECK_COMPILED_FUNCTION (function); | |
| 2684 f = XCOMPILED_FUNCTION (function); | |
| 2685 | |
| 2686 if (OPAQUEP (f->instructions) || STRINGP (f->instructions)) | |
| 2687 return function; | |
| 2688 | |
| 2689 if (CONSP (f->instructions)) | |
| 2690 { | |
| 2691 Lisp_Object tem = read_doc_string (f->instructions); | |
| 2692 if (!CONSP (tem)) | |
| 563 | 2693 signal_error (Qinvalid_byte_code, |
| 2694 "Invalid lazy-loaded byte code", tem); | |
| 428 | 2695 /* v18 or v19 bytecode file. Need to Ebolify. */ |
| 2696 if (f->flags.ebolified && VECTORP (XCDR (tem))) | |
| 2697 ebolify_bytecode_constants (XCDR (tem)); | |
| 2698 f->instructions = XCAR (tem); | |
| 2699 f->constants = XCDR (tem); | |
| 2700 return function; | |
| 2701 } | |
| 2500 | 2702 ABORT (); |
| 801 | 2703 return Qnil; /* not (usually) reached */ |
| 428 | 2704 } |
| 2705 | |
| 2706 DEFUN ("optimize-compiled-function", Foptimize_compiled_function, 1, 1, 0, /* | |
| 2707 Convert compiled function FUNCTION into an optimized internal form. | |
| 2708 */ | |
| 2709 (function)) | |
| 2710 { | |
| 2711 Lisp_Compiled_Function *f; | |
| 2712 CHECK_COMPILED_FUNCTION (function); | |
| 2713 f = XCOMPILED_FUNCTION (function); | |
| 2714 | |
| 2715 if (OPAQUEP (f->instructions)) /* Already optimized? */ | |
| 2716 return Qnil; | |
| 2717 | |
| 2718 optimize_compiled_function (function); | |
| 2719 return Qnil; | |
| 2720 } | |
| 2721 | |
| 2722 DEFUN ("byte-code", Fbyte_code, 3, 3, 0, /* | |
| 2723 Function used internally in byte-compiled code. | |
| 2724 First argument INSTRUCTIONS is a string of byte code. | |
| 2725 Second argument CONSTANTS is a vector of constants. | |
| 2726 Third argument STACK-DEPTH is the maximum stack depth used in this function. | |
| 2727 If STACK-DEPTH is incorrect, Emacs may crash. | |
| 2728 */ | |
| 2729 (instructions, constants, stack_depth)) | |
| 2730 { | |
| 2731 /* This function can GC */ | |
|
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2732 Elemcount varbind_count; |
|
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2733 Elemcount program_length; |
| 428 | 2734 Opbyte *program; |
| 2735 | |
| 2736 CHECK_STRING (instructions); | |
| 2737 CHECK_VECTOR (constants); | |
| 2738 CHECK_NATNUM (stack_depth); | |
| 2739 | |
| 2740 /* Optimize the `instructions' string, just like when executing a | |
| 2741 regular compiled function, but don't save it for later since this is | |
| 2742 likely to only be executed once. */ | |
| 2743 program = alloca_array (Opbyte, 1 + 2 * XSTRING_LENGTH (instructions)); | |
| 2744 optimize_byte_code (instructions, constants, program, | |
| 2745 &program_length, &varbind_count); | |
| 2746 SPECPDL_RESERVE (varbind_count); | |
| 2747 return execute_optimized_program (program, | |
|
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2748 #ifdef ERROR_CHECK_BYTE_CODE |
|
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2749 program_length, |
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2750 #endif |
| 428 | 2751 XINT (stack_depth), |
| 2752 XVECTOR_DATA (constants)); | |
| 2753 } | |
| 2754 | |
| 2755 | |
| 2756 void | |
| 2757 syms_of_bytecode (void) | |
| 2758 { | |
| 442 | 2759 INIT_LRECORD_IMPLEMENTATION (compiled_function); |
| 3092 | 2760 #ifdef NEW_GC |
| 2761 INIT_LRECORD_IMPLEMENTATION (compiled_function_args); | |
| 2762 #endif /* NEW_GC */ | |
| 442 | 2763 |
| 2764 DEFERROR_STANDARD (Qinvalid_byte_code, Qinvalid_state); | |
| 563 | 2765 DEFSYMBOL (Qbyte_code); |
| 2766 DEFSYMBOL_MULTIWORD_PREDICATE (Qcompiled_functionp); | |
| 428 | 2767 |
| 2768 DEFSUBR (Fbyte_code); | |
| 2769 DEFSUBR (Ffetch_bytecode); | |
| 2770 DEFSUBR (Foptimize_compiled_function); | |
| 2771 | |
| 2772 DEFSUBR (Fcompiled_function_p); | |
| 2773 DEFSUBR (Fcompiled_function_instructions); | |
| 2774 DEFSUBR (Fcompiled_function_constants); | |
| 2775 DEFSUBR (Fcompiled_function_stack_depth); | |
| 2776 DEFSUBR (Fcompiled_function_arglist); | |
| 2777 DEFSUBR (Fcompiled_function_interactive); | |
| 2778 DEFSUBR (Fcompiled_function_doc_string); | |
| 2779 DEFSUBR (Fcompiled_function_domain); | |
| 2780 #ifdef COMPILED_FUNCTION_ANNOTATION_HACK | |
| 2781 DEFSUBR (Fcompiled_function_annotation); | |
| 2782 #endif | |
| 2783 | |
| 2784 #ifdef BYTE_CODE_METER | |
| 563 | 2785 DEFSYMBOL (Qbyte_code_meter); |
| 428 | 2786 #endif |
| 2787 } | |
| 2788 | |
| 2789 void | |
| 2790 vars_of_bytecode (void) | |
| 2791 { | |
| 2792 #ifdef BYTE_CODE_METER | |
| 2793 DEFVAR_LISP ("byte-code-meter", &Vbyte_code_meter /* | |
| 2794 A vector of vectors which holds a histogram of byte code usage. | |
| 2795 \(aref (aref byte-code-meter 0) CODE) indicates how many times the byte | |
| 2796 opcode CODE has been executed. | |
| 2797 \(aref (aref byte-code-meter CODE1) CODE2), where CODE1 is not 0, | |
| 2798 indicates how many times the byte opcodes CODE1 and CODE2 have been | |
| 2799 executed in succession. | |
| 2800 */ ); | |
| 2801 DEFVAR_BOOL ("byte-metering-on", &byte_metering_on /* | |
| 2802 If non-nil, keep profiling information on byte code usage. | |
| 2803 The variable `byte-code-meter' indicates how often each byte opcode is used. | |
| 2804 If a symbol has a property named `byte-code-meter' whose value is an | |
| 2805 integer, it is incremented each time that symbol's function is called. | |
| 2806 */ ); | |
| 2807 | |
| 2808 byte_metering_on = 0; | |
| 2809 Vbyte_code_meter = make_vector (256, Qzero); | |
| 2810 { | |
| 2811 int i = 256; | |
| 2812 while (i--) | |
| 2813 XVECTOR_DATA (Vbyte_code_meter)[i] = make_vector (256, Qzero); | |
| 2814 } | |
| 2815 #endif /* BYTE_CODE_METER */ | |
| 2816 } | |
|
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2817 |
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2818 #ifdef ERROR_CHECK_BYTE_CODE |
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2819 |
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2820 /* Initialize the opcodes in the table that correspond to a base opcode |
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2821 plus an offset (except for Bconstant). */ |
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2822 |
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2823 static void |
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2824 init_opcode_table_multi_op (Opcode op) |
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2825 { |
| 4970 | 2826 const Ascbyte *basename = opcode_name_table[op]; |
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2827 Ascbyte temp[300]; |
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2828 int i; |
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2829 |
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2830 for (i = 1; i < 7; i++) |
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2831 { |
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2832 assert (!opcode_name_table[op + i]); |
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2833 sprintf (temp, "%s+%d", basename, i); |
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2834 opcode_name_table[op + i] = xstrdup (temp); |
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2835 } |
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2836 } |
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2837 |
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2838 #endif /* ERROR_CHECK_BYTE_CODE */ |
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2839 |
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2840 void |
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2841 reinit_vars_of_bytecode (void) |
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2842 { |
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2843 #ifdef ERROR_CHECK_BYTE_CODE |
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2844 int i; |
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2845 |
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2846 #define OPCODE(sym, val) opcode_name_table[val] = xstrdup (#sym); |
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2847 #include "bytecode-ops.h" |
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2848 |
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2849 for (i = 0; i < countof (opcode_name_table); i++) |
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2850 { |
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2851 int j; |
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2852 Ascbyte *name = opcode_name_table[i]; |
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2853 if (name) |
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2854 { |
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2855 Bytecount len = strlen (name); |
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2856 /* Prettify the name by converting underscores to hyphens, similar |
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2857 to what happens with DEFSYMBOL. */ |
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2858 for (j = 0; j < len; j++) |
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2859 if (name[j] == '_') |
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2860 name[j] = '-'; |
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2861 } |
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2862 } |
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2863 |
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2864 init_opcode_table_multi_op (Bvarref); |
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2865 init_opcode_table_multi_op (Bvarset); |
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2866 init_opcode_table_multi_op (Bvarbind); |
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2867 init_opcode_table_multi_op (Bcall); |
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2868 init_opcode_table_multi_op (Bunbind); |
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2869 #endif /* ERROR_CHECK_BYTE_CODE */ |
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2870 } |