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| 1 : | anton | 1.1 | /* |
| 2 : | $Id: sparc.h,v 1.2 1993/02/11 15:57:33 anton Exp $ | ||
| 3 : | Copyright 1992 by the ANSI figForth Development Group | ||
| 4 : | |||
| 5 : | This is the machine-specific part for a SPARC running SunOS | ||
| 6 : | */ | ||
| 7 : | |||
| 8 : | |||
| 9 : | /* Cell and UCell must be the same size as a pointer */ | ||
| 10 : | typedef long Cell; | ||
| 11 : | typedef unsigned long UCell; | ||
| 12 : | |||
| 13 : | /* DCell and UDCell must be twice as large as Cell */ | ||
| 14 : | typedef long long DCell; | ||
| 15 : | typedef unsigned long long UDCell; | ||
| 16 : | |||
| 17 : | /* define this if IEEE singles and doubles are available as C data types */ | ||
| 18 : | #define IEEE_FP | ||
| 19 : | |||
| 20 : | /* the IEEE types are used only for loading and storing */ | ||
| 21 : | /* the IEEE double precision type */ | ||
| 22 : | typedef double DFloat; | ||
| 23 : | /* the IEEE single precision type */ | ||
| 24 : | typedef float SFloat; | ||
| 25 : | |||
| 26 : | /* define this if the least-significant byte is at the largets address */ | ||
| 27 : | #define BIG_ENDIAN | ||
| 28 : | |||
| 29 : | #ifdef DIRECT_THREADED | ||
| 30 : | /* PFA gives the parameter field address corresponding to a cfa */ | ||
| 31 : | #define PFA(cfa) (((Cell *)cfa)+2) | ||
| 32 : | /* PFA1 is a special version for use just after a NEXT1 */ | ||
| 33 : | /* the improvement here is that we may destroy cfa before using PFA1 */ | ||
| 34 : | #define PFA1(cfa) /* PFA(cfa) */ \ | ||
| 35 : | ({register Cell *pfa asm("%15"); \ | ||
| 36 : | pfa+2; }) | ||
| 37 : | /* CODE_ADDRESS is the address of the code jumped to through the code field */ | ||
| 38 : | #define CODE_ADDRESS(cfa) ((Label)((*(unsigned *)(cfa))<<2)) | ||
| 39 : | /* MAKE_CF creates an appropriate code field at the cfa; ca is the code address */ | ||
| 40 : | /* we use call, since 'branch always' only has 22 bits displacement */ | ||
| 41 : | #define MAKE_CF(cfa,ca) ({long *_cfa = (long *)(cfa); \ | ||
| 42 : | unsigned _ca = (unsigned)(ca); \ | ||
| 43 : | _cfa[0] = 0x8000000|((_ca+4-(unsigned)_cfa)>>2) /* CALL ca */ \ | ||
| 44 : | _cfa[1] = *(long *)_ca; /* delay slot */}) | ||
| 45 : | #endif | ||
| 46 : | |||
| 47 : | /* this is the point where the does code starts if label points to the | ||
| 48 : | * jump dodoes */ | ||
| 49 : | #define DOES_CODE(label) (((Xt *)(label))+2) | ||
| 50 : | |||
| 51 : | /* this is a special version of DOES_CODE for use in dodoes */ | ||
| 52 : | #define DOES_CODE1(label) ({register Xt *_does_code asm("%15"); \ | ||
| 53 : | _does_code+2; }) | ||
| 54 : | |||
| 55 : | /* this stores a call dodoes at addr */ | ||
| 56 : | #define MAKE_DOESJUMP(addr) ({long *_addr = (long *)(addr); \ | ||
| 57 : | _addr[0] = 0x8000000|((((unsigned)&&dodoes)+4-((unsigned)_addr))>>2) /* CALL dodoes */ \ | ||
| 58 : | _addr[1] = *(long *)&&dodoes; /* delay slot */}) | ||
| 59 : | |||
| 60 : | /* OS dependences */ | ||
| 61 : | |||
| 62 : | #define SEEK_SET 0 | ||
| 63 : | pazsan | 1.2 | |
| 64 : | #define memmove(a,b,c) ({ if((long)(a)<(long)(b)) memcpy(a,b,c); \ | ||
| 65 : | else \ | ||
| 66 : | { int i; \ | ||
| 67 : | for(i=(c)-1; i>=0; i--) \ | ||
| 68 : | (char*)a[i]=(char*)b[i]; \ | ||
| 69 : | } \ | ||
| 70 : | }) | ||
| 71 : | #define strtoul(a,b,c) strtol(a,b,c) | ||
| 72 : |
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