version 1.1, 1994/02/11 16:30:45
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version 1.6, 1994/10/03 18:23:54
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/* |
/* |
$Id$ |
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Copyright 1992 by the ANSI figForth Development Group |
Copyright 1992 by the ANSI figForth Development Group |
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This is the machine-specific part for Intel 386 compatible processors |
This is the machine-specific part for Intel 386 compatible processors |
Line 26 typedef float SFloat;
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Line 25 typedef float SFloat;
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/* define this if the least-significant byte is at the largets address */ |
/* define this if the least-significant byte is at the largets address */ |
/* #define BIG_ENDIAN */ |
/* #define BIG_ENDIAN */ |
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/* define this if the processor cannot exploit instruction-level |
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parallelism (no pipelining or too few registers) */ |
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#define CISC_NEXT |
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#ifdef DIRECT_THREADED |
#ifdef DIRECT_THREADED |
/* PFA gives the parameter field address corresponding to a cfa */ |
/* PFA gives the parameter field address corresponding to a cfa */ |
#define PFA(cfa) (((Cell *)cfa)+2) |
#define PFA(cfa) (((Cell *)cfa)+2) |
/* PFA1 is a special version for use just after a NEXT1 */ |
/* PFA1 is a special version for use just after a NEXT1 */ |
#define PFA1(cfa) PFA(cfa) |
#define PFA1(cfa) PFA(cfa) |
/* CODE_ADDRESS is the address of the code jumped to through the code field */ |
/* CODE_ADDRESS is the address of the code jumped to through the code field */ |
#define CODE_ADDRESS(cfa) ({long _cfa = (char *)(cfa); (Label)(_cfa+*((long *)(_cfa+1))-5);}) |
#define CODE_ADDRESS(cfa) \ |
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({long _cfa = (long)(cfa); (Label)(_cfa+*((long *)(_cfa+1))+5);}) |
/* MAKE_CF creates an appropriate code field at the cfa; ca is the code address */ |
/* MAKE_CF creates an appropriate code field at the cfa; ca is the code address */ |
#define MAKE_CF(cfa,ca) ({long _cfa = (long *)(cfa); \ |
#define MAKE_CF(cfa,ca) ({long _cfa = (long)(cfa); \ |
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long _ca = (long)(ca); \ |
*(char *)_cfa = 0xe9; /* jmp */ \ |
*(char *)_cfa = 0xe9; /* jmp */ \ |
*(long *)(_cfa+1) = ((long)(ca))-(_cfa+5);}) |
*(long *)(_cfa+1) = _ca-(_cfa+5);}) |
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/* this is the point where the does code starts if label points to the |
/* this is the point where the does code starts if label points to the |
* jump dodoes */ |
* jump dodoes */ |
#define DOES_CODE(label) ((Xt *)(((char *)label)+8)) |
#define DOES_HANDLER_SIZE 8 |
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#define DOES_CODE(label) ((Xt *)(CODE_ADDRESS(label)+DOES_HANDLER_SIZE)) |
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/* this is a special version of DOES_CODE for use in dodoes */ |
/* this is a special version of DOES_CODE for use in dodoes */ |
#define DOES_CODE1(label) DOES_CODE(label) |
#define DOES_CODE1(label) DOES_CODE(label) |
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/* this stores a jump dodoes at addr */ |
/* this stores a jump dodoes at addr */ |
#define MAKE_DOESJUMP(addr) ({long _addr = (long *)(addr); \ |
#define MAKE_DOES_HANDLER(addr) MAKE_CF(addr,symbols[DODOES]) |
*(char *)_addr = 0xe9; /* jmp */ \ |
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*(long *)(_addr+1) = ((long)(&&dodoes))-(_addr+5);}) |
#define MAKE_DOES_CF(addr,doesp) MAKE_CF(addr,((int)(doesp)-8)) |
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#endif |
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#ifdef FORCE_REG |
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#define IPREG asm("%esi") |
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#define SPREG asm("%edi") |
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#ifdef USE_TOS |
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#define CFAREG asm("%ecx") |
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#else |
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#define CFAREG asm("%edx") |
#endif |
#endif |
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#endif /* FORCE_REG */ |
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#define rint(x) floor((x)+0.5) |