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 fmsub(void *frD, void *frA, void *frB, void *frC) 115cd27208SKumar Gala { 125cd27208SKumar Gala FP_DECL_D(R); 135cd27208SKumar Gala FP_DECL_D(A); 145cd27208SKumar Gala FP_DECL_D(B); 155cd27208SKumar Gala FP_DECL_D(C); 165cd27208SKumar Gala FP_DECL_D(T); 17d2b194edSKumar Gala FP_DECL_EX; 185cd27208SKumar Gala 195cd27208SKumar Gala #ifdef DEBUG 20e48b1b45SHarvey Harrison printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); 215cd27208SKumar Gala #endif 225cd27208SKumar Gala 23d2b194edSKumar Gala FP_UNPACK_DP(A, frA); 24d2b194edSKumar Gala FP_UNPACK_DP(B, frB); 25d2b194edSKumar Gala FP_UNPACK_DP(C, frC); 265cd27208SKumar Gala 275cd27208SKumar Gala #ifdef DEBUG 285cd27208SKumar Gala printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 295cd27208SKumar Gala printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 305cd27208SKumar Gala printk("C: %ld %lu %lu %ld (%ld)\n", C_s, C_f1, C_f0, C_e, C_c); 315cd27208SKumar Gala #endif 325cd27208SKumar Gala 335cd27208SKumar Gala if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || 345cd27208SKumar Gala (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) 35*033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_VXIMZ); 365cd27208SKumar Gala 375cd27208SKumar Gala FP_MUL_D(T, A, C); 385cd27208SKumar Gala 395cd27208SKumar Gala if (B_c != FP_CLS_NAN) 405cd27208SKumar Gala B_s ^= 1; 415cd27208SKumar Gala 425cd27208SKumar Gala if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) 43*033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_VXISI); 445cd27208SKumar Gala 455cd27208SKumar Gala FP_ADD_D(R, T, B); 465cd27208SKumar Gala 475cd27208SKumar Gala #ifdef DEBUG 485cd27208SKumar Gala printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 495cd27208SKumar Gala #endif 505cd27208SKumar Gala 51d2b194edSKumar Gala __FP_PACK_D(frD, R); 52d2b194edSKumar Gala 53d2b194edSKumar Gala return FP_CUR_EXCEPTIONS; 545cd27208SKumar Gala } 55