| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|
| 2 | #include <linux/types.h> |
|---|
| 3 | #include <linux/errno.h> |
|---|
| 4 | #include <linux/uaccess.h> |
|---|
| 5 | |
|---|
| 6 | #include <asm/sfp-machine.h> |
|---|
| 7 | #include <math-emu/soft-fp.h> |
|---|
| 8 | #include <math-emu/double.h> |
|---|
| 9 | #include <math-emu/single.h> |
|---|
| 10 | |
|---|
| 11 | int |
|---|
| 12 | fmuls(void *frD, void *frA, void *frB) |
|---|
| 13 | { |
|---|
| 14 | FP_DECL_D(A); |
|---|
| 15 | FP_DECL_D(B); |
|---|
| 16 | FP_DECL_D(R); |
|---|
| 17 | FP_DECL_EX; |
|---|
| 18 | |
|---|
| 19 | #ifdef DEBUG |
|---|
| 20 | printk("%s: %p %p %p\n" , __func__, frD, frA, frB); |
|---|
| 21 | #endif |
|---|
| 22 | |
|---|
| 23 | FP_UNPACK_DP(A, frA); |
|---|
| 24 | FP_UNPACK_DP(B, frB); |
|---|
| 25 | |
|---|
| 26 | #ifdef DEBUG |
|---|
| 27 | printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n" , |
|---|
| 28 | A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023); |
|---|
| 29 | printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n" , |
|---|
| 30 | B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023); |
|---|
| 31 | #endif |
|---|
| 32 | |
|---|
| 33 | if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) || |
|---|
| 34 | (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF)) |
|---|
| 35 | FP_SET_EXCEPTION(EFLAG_VXIMZ); |
|---|
| 36 | |
|---|
| 37 | FP_MUL_D(R, A, B); |
|---|
| 38 | |
|---|
| 39 | #ifdef DEBUG |
|---|
| 40 | printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n" , |
|---|
| 41 | R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023); |
|---|
| 42 | #endif |
|---|
| 43 | |
|---|
| 44 | __FP_PACK_DS(frD, R); |
|---|
| 45 | |
|---|
| 46 | return FP_CUR_EXCEPTIONS; |
|---|
| 47 | } |
|---|
| 48 | |
|---|
