annotate src/m/amdahl.h @ 4686:cdabd56ce1b5

Fix various small issues with the multiple-value implementation. lisp/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el (byte-optimize-form-code-walker): Be careful about discarding multiple values when optimising #'prog1 calls. (byte-optimize-or): Preserve any trailing nil, as this is a supported way to explicitly discard multiple values. (byte-optimize-cond-1): Discard multiple values with a singleton followed by no more clauses. * bytecomp.el (progn): (prog1): (prog2): Be careful about discarding multiple values in the byte-hunk handler of these three forms. * bytecomp.el (byte-compile-prog1, byte-compile-prog2): Don't call #'values explicitly, use `(or ,(pop form) nil) instead, since that compiles to bytecode, not a funcall. * bytecomp.el (byte-compile-values): With one non-const argument, byte-compile to `(or ,(second form) nil), not an explicit #'values call. * bytecomp.el (byte-compile-insert-header): Be nicer in the error message to emacs versions that don't understand our bytecode. src/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * eval.c (For, Fand): Don't declare val as REGISTER in these functions, for some reason it breaks the non-DEBUG union build. These functions are only called from interpreted code, the performance implication doesn't matter. Thank you Robert Delius Royar! * eval.c (Fmultiple_value_list_internal): Error on too many arguments. tests/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el (Assert-rounding): Remove an overly-verbose failure message here. Correct a couple of tests which were buggy in themselves. Add three new tests, checking the behaviour of #'or and #'and when passed zero arguments, and a Known-Bug-Expect-Failure call involving letf and values. (The bug predates the C-level multiple-value implementation.)
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 06 Sep 2009 19:36:02 +0100
parents ecf1ebac70d8
children
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1 /* amdahl machine description file
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2 Copyright (C) 1987 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.31. */
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22
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23 /*
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24 This file for amdahl_uts created by modifying the template.h
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25 by Jishnu Mukerji 3/1/87
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26
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27 The following line tells the configuration script what sort of
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28 operating system this machine is likely to run.
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29 USUAL-OPSYS="usg5-2-2"
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30
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31 This file works with the Amdahl uts native C compiler. The 5.2u370
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32 compiler is so brain damaged that it is not even worth trying to use it.
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33 */
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34
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35 /* Now define a symbol for the cpu type, if your compiler
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36 does not define it automatically:
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37 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
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38 are the ones defined so far. */
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39
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40 /* uts gets defined automatically */
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41 /* However for clarity define amdahl_uts */
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42 #define amdahl_uts
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43
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44 /* Data type of load average, as read out of kmem. */
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45
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46 /* #define LOAD_AVE_TYPE long*/
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47
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48 /* Convert that into an integer that is 100 for a load average of 1.0 */
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49
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50 /*#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)*/
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51
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52 /* Define NO_REMAP if memory segmentation makes it not work well
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53 to change the boundary between the text section and data section
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54 when Emacs is dumped. If you define this, the preloaded Lisp
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55 code will not be sharable; but that's better than failing completely. */
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56
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57 /*#define NO_REMAP*/
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58
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59 #define TERMINFO
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60
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61 /* The usual definition of XINT, which involves shifting, does not
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62 sign-extend properly on this machine. */
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63
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64 #define XREALINT(i) (((sign_extend_temp=(i)) & 0x00800000) \
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65 ? (sign_extend_temp | 0xFF000000) \
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66 : (sign_extend_temp & 0x00FFFFFF))
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67
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68 #ifdef emacs /* Don't do this when making xmakefile! */
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69 extern int sign_extend_temp;
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70 #endif
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71
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72 /* The following needed to load the proper crt0.o and to get the
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73 proper declaration of data_start in the #undef NO_REMAP case */
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74
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75 #ifndef NO_REMAP
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76 #define START_FILES "pre-crt0.o /lib/crt0.o"
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77 #endif
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78
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79 /* Perhaps this means that the optimizer isn't safe to use. */
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80
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81 #define C_OPTIMIZE_SWITCH
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82
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83 /* Put text and data on non-segment boundary; makes image smaller */
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84
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85 #define LD_SWITCH_MACHINE "-N"
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86
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87 /* When writing the 'xemacs' file, make text segment ro */
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88 #define EXEC_MAGIC 0410
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89
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90 /* Mask for address bits within a memory segment */
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91 #define SEGSIZ 0x10000 /* Should this not be defined elsewhere ? */
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92 #define SEGMENT_MASK (SEGSIZ - 1)
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93
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94 /* Compensate for error in signal.h. */
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95 #if NSIG==19
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96 #undef NSIG
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97 #define NSIG 20
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98 #endif