15cd27208SKumar Gala #include <linux/types.h> 25cd27208SKumar Gala #include <linux/errno.h> 35cd27208SKumar Gala #include <asm/uaccess.h> 45cd27208SKumar Gala 5d2b194edSKumar Gala #include <asm/sfp-machine.h> 6d2b194edSKumar Gala #include <math-emu/soft-fp.h> 7d2b194edSKumar Gala #include <math-emu/double.h> 85cd27208SKumar Gala 95cd27208SKumar Gala int 105cd27208SKumar Gala fdiv(void *frD, void *frA, void *frB) 115cd27208SKumar Gala { 125cd27208SKumar Gala FP_DECL_D(A); 135cd27208SKumar Gala FP_DECL_D(B); 145cd27208SKumar Gala FP_DECL_D(R); 15d2b194edSKumar Gala FP_DECL_EX; 165cd27208SKumar Gala 175cd27208SKumar Gala #ifdef DEBUG 18e48b1b45SHarvey Harrison printk("%s: %p %p %p\n", __func__, frD, frA, frB); 195cd27208SKumar Gala #endif 205cd27208SKumar Gala 21d2b194edSKumar Gala FP_UNPACK_DP(A, frA); 22d2b194edSKumar Gala FP_UNPACK_DP(B, frB); 235cd27208SKumar Gala 245cd27208SKumar Gala #ifdef DEBUG 255cd27208SKumar Gala printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 265cd27208SKumar Gala printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 275cd27208SKumar Gala #endif 285cd27208SKumar Gala 295cd27208SKumar Gala if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { 30033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_VXZDZ); 315cd27208SKumar Gala #ifdef DEBUG 32e48b1b45SHarvey Harrison printk("%s: FPSCR_VXZDZ raised\n", __func__); 335cd27208SKumar Gala #endif 345cd27208SKumar Gala } 355cd27208SKumar Gala if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { 36033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_VXIDI); 375cd27208SKumar Gala #ifdef DEBUG 38e48b1b45SHarvey Harrison printk("%s: FPSCR_VXIDI raised\n", __func__); 395cd27208SKumar Gala #endif 405cd27208SKumar Gala } 415cd27208SKumar Gala 425cd27208SKumar Gala if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { 43033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_DIVZERO); 445cd27208SKumar Gala if (__FPU_TRAP_P(EFLAG_DIVZERO)) 45033b8a33SLiu Yu return FP_CUR_EXCEPTIONS; 465cd27208SKumar Gala } 475cd27208SKumar Gala FP_DIV_D(R, A, B); 485cd27208SKumar Gala 495cd27208SKumar Gala #ifdef DEBUG 505cd27208SKumar Gala printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 515cd27208SKumar Gala #endif 525cd27208SKumar Gala 53d2b194edSKumar Gala __FP_PACK_D(frD, R); 54d2b194edSKumar Gala 55d2b194edSKumar Gala return FP_CUR_EXCEPTIONS; 565cd27208SKumar Gala } 57