1*5cd27208SKumar Gala #include <linux/types.h> 2*5cd27208SKumar Gala #include <linux/errno.h> 3*5cd27208SKumar Gala #include <asm/uaccess.h> 4*5cd27208SKumar Gala 5*5cd27208SKumar Gala #include "soft-fp.h" 6*5cd27208SKumar Gala #include "double.h" 7*5cd27208SKumar Gala 8*5cd27208SKumar Gala int 9*5cd27208SKumar Gala fmsub(void *frD, void *frA, void *frB, void *frC) 10*5cd27208SKumar Gala { 11*5cd27208SKumar Gala FP_DECL_D(R); 12*5cd27208SKumar Gala FP_DECL_D(A); 13*5cd27208SKumar Gala FP_DECL_D(B); 14*5cd27208SKumar Gala FP_DECL_D(C); 15*5cd27208SKumar Gala FP_DECL_D(T); 16*5cd27208SKumar Gala int ret = 0; 17*5cd27208SKumar Gala 18*5cd27208SKumar Gala #ifdef DEBUG 19*5cd27208SKumar Gala printk("%s: %p %p %p %p\n", __FUNCTION__, frD, frA, frB, frC); 20*5cd27208SKumar Gala #endif 21*5cd27208SKumar Gala 22*5cd27208SKumar Gala __FP_UNPACK_D(A, frA); 23*5cd27208SKumar Gala __FP_UNPACK_D(B, frB); 24*5cd27208SKumar Gala __FP_UNPACK_D(C, frC); 25*5cd27208SKumar Gala 26*5cd27208SKumar Gala #ifdef DEBUG 27*5cd27208SKumar Gala printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 28*5cd27208SKumar Gala printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 29*5cd27208SKumar Gala printk("C: %ld %lu %lu %ld (%ld)\n", C_s, C_f1, C_f0, C_e, C_c); 30*5cd27208SKumar Gala #endif 31*5cd27208SKumar Gala 32*5cd27208SKumar Gala if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || 33*5cd27208SKumar Gala (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) 34*5cd27208SKumar Gala ret |= EFLAG_VXIMZ; 35*5cd27208SKumar Gala 36*5cd27208SKumar Gala FP_MUL_D(T, A, C); 37*5cd27208SKumar Gala 38*5cd27208SKumar Gala if (B_c != FP_CLS_NAN) 39*5cd27208SKumar Gala B_s ^= 1; 40*5cd27208SKumar Gala 41*5cd27208SKumar Gala if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) 42*5cd27208SKumar Gala ret |= EFLAG_VXISI; 43*5cd27208SKumar Gala 44*5cd27208SKumar Gala FP_ADD_D(R, T, B); 45*5cd27208SKumar Gala 46*5cd27208SKumar Gala #ifdef DEBUG 47*5cd27208SKumar Gala printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 48*5cd27208SKumar Gala #endif 49*5cd27208SKumar Gala 50*5cd27208SKumar Gala return (ret | __FP_PACK_D(frD, R)); 51*5cd27208SKumar Gala } 52