#include <linux/types.h> #include <linux/errno.h> #include <asm/uaccess.h> #include "soft-fp.h" #include "double.h" int fdiv(void *frD, void *frA, void *frB) { FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); int ret = 0; #ifdef DEBUG printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB); #endif __FP_UNPACK_D(A, frA); __FP_UNPACK_D(B, frB); #ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); #endif if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { ret |= EFLAG_VXZDZ; #ifdef DEBUG printk("%s: FPSCR_VXZDZ raised\n", __FUNCTION__); #endif } if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { ret |= EFLAG_VXIDI; #ifdef DEBUG printk("%s: FPSCR_VXIDI raised\n", __FUNCTION__); #endif } if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { ret |= EFLAG_DIVZERO; if (__FPU_TRAP_P(EFLAG_DIVZERO)) return ret; } FP_DIV_D(R, A, B); #ifdef DEBUG printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); #endif return (ret | __FP_PACK_D(frD, R)); }