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 int ret = 0; 175cd27208SKumar Gala 185cd27208SKumar Gala #ifdef DEBUG 19e48b1b45SHarvey Harrison printk("%s: %p %p %p\n", __func__, frD, frA, frB); 205cd27208SKumar Gala #endif 215cd27208SKumar Gala 22d2b194edSKumar Gala FP_UNPACK_DP(A, frA); 23d2b194edSKumar Gala FP_UNPACK_DP(B, frB); 245cd27208SKumar Gala 255cd27208SKumar Gala #ifdef DEBUG 265cd27208SKumar Gala printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 275cd27208SKumar Gala printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 285cd27208SKumar Gala #endif 295cd27208SKumar Gala 305cd27208SKumar Gala if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { 315cd27208SKumar Gala ret |= EFLAG_VXZDZ; 325cd27208SKumar Gala #ifdef DEBUG 33e48b1b45SHarvey Harrison printk("%s: FPSCR_VXZDZ raised\n", __func__); 345cd27208SKumar Gala #endif 355cd27208SKumar Gala } 365cd27208SKumar Gala if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { 375cd27208SKumar Gala ret |= EFLAG_VXIDI; 385cd27208SKumar Gala #ifdef DEBUG 39e48b1b45SHarvey Harrison printk("%s: FPSCR_VXIDI raised\n", __func__); 405cd27208SKumar Gala #endif 415cd27208SKumar Gala } 425cd27208SKumar Gala 435cd27208SKumar Gala if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { 445cd27208SKumar Gala ret |= EFLAG_DIVZERO; 455cd27208SKumar Gala if (__FPU_TRAP_P(EFLAG_DIVZERO)) 465cd27208SKumar Gala return ret; 475cd27208SKumar Gala } 485cd27208SKumar Gala FP_DIV_D(R, A, B); 495cd27208SKumar Gala 505cd27208SKumar Gala #ifdef DEBUG 515cd27208SKumar Gala printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 525cd27208SKumar Gala #endif 535cd27208SKumar Gala 54d2b194edSKumar Gala __FP_PACK_D(frD, R); 55d2b194edSKumar Gala 56d2b194edSKumar Gala return FP_CUR_EXCEPTIONS; 575cd27208SKumar Gala } 58