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comparison src/m/mips.h @ 400:a86b2b5e0111 r21-2-30

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Import from CVS: tag r21-2-30
author cvs
date Mon, 13 Aug 2007 11:14:34 +0200
parents 74fd4e045ea6
children 697ef44129c6
comparison
equal deleted inserted replaced
399:376370fb5946 400:a86b2b5e0111
27 NOTE-START 27 NOTE-START
28 Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world. 28 Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world.
29 Note that the proper m- file for the Decstation is m-pmax.h. 29 Note that the proper m- file for the Decstation is m-pmax.h.
30 NOTE-END */ 30 NOTE-END */
31 31
32 /* Define WORD_MACHINE if addresses and such have
33 * to be corrected before they can be used as byte counts. */
34
35 #undef WORD_MACHINE
36
37 /* Define how to take a char and sign-extend into an int.
38 On machines where char is signed, this is a no-op. */
39
40 #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
41
42 /* Now define a symbol for the cpu type, if your compiler 32 /* Now define a symbol for the cpu type, if your compiler
43 does not define it automatically: 33 does not define it automatically:
44 Ones defined so far include vax, m68000, ns16000, pyramid, 34 Ones defined so far include vax, m68000, ns16000, pyramid,
45 orion, tahoe, APOLLO and many others */ 35 orion, tahoe, APOLLO and many others */
46 #ifndef mips 36 #ifndef mips
47 # define mips 37 # define mips
48 #endif 38 #endif
49
50 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
51 the bit field into an int. In other words, if bit fields
52 are always unsigned.
53
54 If you use NO_UNION_TYPE, this flag does not matter. */
55
56 #define EXPLICIT_SIGN_EXTEND
57 39
58 /* Data type of load average, as read out of kmem. */ 40 /* Data type of load average, as read out of kmem. */
59 41
60 #define LOAD_AVE_TYPE long 42 #define LOAD_AVE_TYPE long
61 43
114 /* Describe layout of the address space in an executing process. */ 96 /* Describe layout of the address space in an executing process. */
115 97
116 #ifdef linux 98 #ifdef linux
117 #define TEXT_START 0x00400000 99 #define TEXT_START 0x00400000
118 #define DATA_START 0x10000000 100 #define DATA_START 0x10000000
119 #define DATA_SEG_BITS 0x10000000
120 #else /* !linux */ 101 #else /* !linux */
121 #define TEXT_START 0x400000 102 #define TEXT_START 0x400000
122 #define DATA_START 0x800000 103 #define DATA_START 0x800000
123 #endif /* linux */ 104 #endif /* linux */
124 105