1 #include <linux/types.h> 2 #include <linux/errno.h> 3 #include <asm/uaccess.h> 4 5 #include "soft-fp.h" 6 #include "double.h" 7 #include "single.h" 8 9 int 10 fdivs(void *frD, void *frA, void *frB) 11 { 12 FP_DECL_D(A); 13 FP_DECL_D(B); 14 FP_DECL_D(R); 15 int ret = 0; 16 17 #ifdef DEBUG 18 printk("%s: %p %p %p\n", __func__, frD, frA, frB); 19 #endif 20 21 __FP_UNPACK_D(A, frA); 22 __FP_UNPACK_D(B, frB); 23 24 #ifdef DEBUG 25 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 26 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 27 #endif 28 29 if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { 30 ret |= EFLAG_VXZDZ; 31 #ifdef DEBUG 32 printk("%s: FPSCR_VXZDZ raised\n", __func__); 33 #endif 34 } 35 if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { 36 ret |= EFLAG_VXIDI; 37 #ifdef DEBUG 38 printk("%s: FPSCR_VXIDI raised\n", __func__); 39 #endif 40 } 41 42 if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { 43 ret |= EFLAG_DIVZERO; 44 if (__FPU_TRAP_P(EFLAG_DIVZERO)) 45 return ret; 46 } 47 48 FP_DIV_D(R, A, B); 49 50 #ifdef DEBUG 51 printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 52 #endif 53 54 return (ret | __FP_PACK_DS(frD, R)); 55 } 56