1 #include <linux/types.h> 2 #include <linux/errno.h> 3 #include <asm/uaccess.h> 4 5 #include <asm/sfp-machine.h> 6 #include <math-emu/soft-fp.h> 7 #include <math-emu/double.h> 8 #include <math-emu/single.h> 9 10 int 11 fdivs(void *frD, void *frA, void *frB) 12 { 13 FP_DECL_D(A); 14 FP_DECL_D(B); 15 FP_DECL_D(R); 16 FP_DECL_EX; 17 18 #ifdef DEBUG 19 printk("%s: %p %p %p\n", __func__, frD, frA, frB); 20 #endif 21 22 FP_UNPACK_DP(A, frA); 23 FP_UNPACK_DP(B, frB); 24 25 #ifdef DEBUG 26 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 27 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 28 #endif 29 30 if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { 31 FP_SET_EXCEPTION(EFLAG_VXZDZ); 32 #ifdef DEBUG 33 printk("%s: FPSCR_VXZDZ raised\n", __func__); 34 #endif 35 } 36 if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { 37 FP_SET_EXCEPTION(EFLAG_VXIDI); 38 #ifdef DEBUG 39 printk("%s: FPSCR_VXIDI raised\n", __func__); 40 #endif 41 } 42 43 if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { 44 FP_SET_EXCEPTION(EFLAG_DIVZERO); 45 if (__FPU_TRAP_P(EFLAG_DIVZERO)) 46 return FP_CUR_EXCEPTIONS; 47 } 48 49 FP_DIV_D(R, A, B); 50 51 #ifdef DEBUG 52 printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 53 #endif 54 55 __FP_PACK_DS(frD, R); 56 57 return FP_CUR_EXCEPTIONS; 58 } 59