int stfs(void *frS, void *ea) { FP_DECL_D(A); FP_DECL_S(R); float f; int err; #ifdef DEBUG printk("%s: S %p, ea %p\n", __FUNCTION__, frS, ea); #endif __FP_UNPACK_D(A, frS); #ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); #endif FP_CONV(S, D, 1, 2, R, A); #ifdef DEBUG printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); #endif err = _FP_PACK_CANONICAL(S, 1, R); if (!err || !__FPU_TRAP_P(err)) { __FP_PACK_RAW_1(S, &f, R); if (copy_to_user(ea, &f, sizeof(float))) return -EFAULT; } return err; }
int stfs(void *frS, void *ea) { FP_DECL_D(A); FP_DECL_S(R); FP_DECL_EX; float f; #ifdef DEBUG printk("%s: S %p, ea %p\n", __func__, frS, ea); #endif FP_UNPACK_DP(A, frS); #ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); #endif FP_CONV(S, D, 1, 2, R, A); #ifdef DEBUG printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); #endif _FP_PACK_CANONICAL(S, 1, R); if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) { _FP_PACK_RAW_1_P(S, &f, R); if (copy_to_user(ea, &f, sizeof(float))) return -EFAULT; } return FP_CUR_EXCEPTIONS; }
int fdivs(void *frD, void *frA, void *frB) { FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); FP_DECL_EX; #ifdef DEBUG printk("%s: %p %p %p\n", __func__, frD, frA, frB); #endif FP_UNPACK_DP(A, frA); FP_UNPACK_DP(B, frB); #ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); #endif if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { FP_SET_EXCEPTION(EFLAG_VXZDZ); #ifdef DEBUG printk("%s: FPSCR_VXZDZ raised\n", __func__); #endif } if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { FP_SET_EXCEPTION(EFLAG_VXIDI); #ifdef DEBUG printk("%s: FPSCR_VXIDI raised\n", __func__); #endif } if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { FP_SET_EXCEPTION(EFLAG_DIVZERO); if (__FPU_TRAP_P(EFLAG_DIVZERO)) return FP_CUR_EXCEPTIONS; } FP_DIV_D(R, A, B); #ifdef DEBUG printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); #endif __FP_PACK_DS(frD, R); return FP_CUR_EXCEPTIONS; }
int fdiv(void *frD, void *frA, void *frB) { FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); int ret = 0; #ifdef DEBUG printk("%s: %p %p %p\n", __func__, frD, frA, frB); #endif __FP_UNPACK_D(A, frA); __FP_UNPACK_D(B, frB); #ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); #endif if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) { ret |= EFLAG_VXZDZ; #ifdef DEBUG printk("%s: FPSCR_VXZDZ raised\n", __func__); #endif } if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { ret |= EFLAG_VXIDI; #ifdef DEBUG printk("%s: FPSCR_VXIDI raised\n", __func__); #endif } if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) { ret |= EFLAG_DIVZERO; if (__FPU_TRAP_P(EFLAG_DIVZERO)) return ret; } FP_DIV_D(R, A, B); #ifdef DEBUG printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); #endif return (ret | __FP_PACK_D(frD, R)); }