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1.1 root 1: /* Configuration for an i386 running Mach as the target machine. */ 1.1.1.3 ! root 2: ! 3: /* We do want to add an underscore to the front of each user symbol. ! 4: i386gas.h checks this. */ ! 5: #define YES_UNDERSCORES ! 6: ! 7: #include "i386gstabs.h" 1.1 root 8: 9: #undef CPP_PREDEFINES 10: #define CPP_PREDEFINES "-Dunix -Di386 -DMACH" 11: 12: /* Specify extra dir to search for include files. */ 13: #define SYSTEM_INCLUDE_DIR "/usr/mach/include" 1.1.1.3 ! root 14: ! 15: /* Make stddef.h agree with types.h. */ ! 16: #define SIZE_TYPE "long int" 1.1 root 17: 18: /* Defines to be able to build libgcc.a with GCC. */ 19: 1.1.1.2 root 20: /* It might seem that these are not important, since gcc 2 will never 21: call libgcc for these functions. But programs might be linked with 22: code compiled by gcc 1, and then these will be used. */ 23: 1.1 root 24: #define perform_udivsi3(a,b) \ 25: { \ 26: register int dx asm("dx"); \ 27: register int ax asm("ax"); \ 28: \ 29: dx = 0; \ 30: ax = a; \ 31: asm ("divl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b), "d" (dx)); \ 32: return ax; \ 33: } 34: 1.1.1.2 root 35: #define perform_divsi3(a,b) \ 1.1 root 36: { \ 37: register int dx asm("dx"); \ 38: register int ax asm("ax"); \ 39: \ 40: ax = a; \ 41: asm ("cltd\n\tidivl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b)); \ 42: return ax; \ 43: } 44: 45: #define perform_umodsi3(a,b) \ 46: { \ 47: register int dx asm("dx"); \ 48: register int ax asm("ax"); \ 49: \ 50: dx = 0; \ 51: ax = a; \ 52: asm ("divl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b), "d" (dx)); \ 53: return dx; \ 54: } 55: 1.1.1.2 root 56: #define perform_modsi3(a,b) \ 1.1 root 57: { \ 58: register int dx asm("dx"); \ 59: register int ax asm("ax"); \ 60: \ 61: ax = a; \ 62: asm ("cltd\n\tidivl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b)); \ 63: return dx; \ 64: } 65: 1.1.1.2 root 66: #define perform_fixdfsi(a) \ 1.1 root 67: { \ 68: auto unsigned short ostatus; \ 69: auto unsigned short nstatus; \ 70: auto int ret; \ 1.1.1.3 ! root 71: auto double tmp; \ 1.1 root 72: \ 73: &ostatus; /* guarantee these land in memory */ \ 74: &nstatus; \ 75: &ret; \ 1.1.1.3 ! root 76: &tmp; \ 1.1 root 77: \ 78: asm volatile ("fnstcw %0" : "=m" (ostatus)); \ 79: nstatus = ostatus | 0x0c00; \ 80: asm volatile ("fldcw %0" : /* no outputs */ : "m" (nstatus)); \ 1.1.1.3 ! root 81: tmp = a; \ ! 82: asm volatile ("fldl %0" : /* no outputs */ : "m" (tmp)); \ 1.1 root 83: asm volatile ("fistpl %0" : "=m" (ret)); \ 1.1.1.2 root 84: asm volatile ("fldcw %0" : /* no outputs */ : "m" (ostatus)); \ 1.1 root 85: \ 86: return ret; \ 87: }
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