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comparison src/m/ibmrt.h @ 442:abe6d1db359e r21-2-36

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Import from CVS: tag r21-2-36
author cvs
date Mon, 13 Aug 2007 11:35:02 +0200
parents 3ecd8885ac67
children 4542b72c005e
comparison
equal deleted inserted replaced
441:72a7cfa4a488 442:abe6d1db359e
22 22
23 /* The following line tells the configuration script what sort of 23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run. 24 operating system this machine is likely to run.
25 USUAL-OPSYS="bsd4-2" */ 25 USUAL-OPSYS="bsd4-2" */
26 26
27 /* Define WORD_MACHINE if addresses and such have
28 * to be corrected before they can be used as byte counts. */
29
30 #define WORD_MACHINE
31
32 /* Now define a symbol for the cpu type, if your compiler 27 /* Now define a symbol for the cpu type, if your compiler
33 does not define it automatically. */ 28 does not define it automatically. */
34 29
35 /* XEmacs change */ 30 /* XEmacs change */
36 #ifndef ibmrt 31 #ifndef ibmrt
37 #define ibmrt 32 #define ibmrt
38 #endif 33 #endif
39 #ifndef romp 34 #ifndef romp
40 #define romp /* unfortunately old include files are hanging around. */ 35 #define romp /* unfortunately old include files are hanging around. */
41 #endif 36 #endif
42
43 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
44 the bit field into an int. In other words, if bit fields
45 are always unsigned.
46
47 If you use NO_UNION_TYPE, this flag does not matter. */
48
49 #define EXPLICIT_SIGN_EXTEND
50 37
51 /* Data type of load average, as read out of kmem. */ 38 /* Data type of load average, as read out of kmem. */
52 39
53 #define LOAD_AVE_TYPE double /* For AIS (sysV) */ 40 #define LOAD_AVE_TYPE double /* For AIS (sysV) */
54 41
60 Then the function dump-emacs will not be defined 47 Then the function dump-emacs will not be defined
61 and temacs will do (load "loadup") automatically unless told otherwise. */ 48 and temacs will do (load "loadup") automatically unless told otherwise. */
62 49
63 /* #define CANNOT_DUMP */ 50 /* #define CANNOT_DUMP */
64 51
65 /* Define VIRT_ADDR_VARIES if the virtual addresses of
66 pure and impure space as loaded can vary, and even their
67 relative order cannot be relied on.
68
69 Otherwise Emacs assumes that text space precedes data space,
70 numerically. */
71
72 #undef VIRT_ADDR_VARIES
73
74 /* Define C_ALLOCA if this machine does not support a true alloca 52 /* Define C_ALLOCA if this machine does not support a true alloca
75 and the one written in C should be used instead. 53 and the one written in C should be used instead.
76 Define HAVE_ALLOCA to say that the system provides a properly 54 Define HAVE_ALLOCA to say that the system provides a properly
77 working alloca function and it should be used. 55 working alloca function and it should be used.
78 Define neither one if an assembler-language alloca 56 Define neither one if an assembler-language alloca
79 in the file alloca.s should be used. */ 57 in the file alloca.s should be used. */
80 58
81 #define HAVE_ALLOCA 59 #define HAVE_ALLOCA
82 60
83 /* The data segment in this machine starts at a fixed address.
84 An address of data cannot be stored correctly in a Lisp object;
85 we always lose the high bits. We must tell XPNTR to add them back. */
86
87 #define DATA_SEG_BITS 0x10000000
88 #define DATA_START 0x10000000 61 #define DATA_START 0x10000000
89 62
90 /* The text segment always starts at a fixed address. 63 /* The text segment always starts at a fixed address.
91 This way we don't need to have a label _start defined. */ 64 This way we don't need to have a label _start defined. */
92 #define TEXT_START 0 65 #define TEXT_START 0