Blame view
arch/powerpc/math-emu/fmsubs.c
1.13 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 3 |
#include <linux/types.h> #include <linux/errno.h> #include <asm/uaccess.h> |
d2b194ed8 powerpc/math-emu:... |
4 5 6 7 |
#include <asm/sfp-machine.h> #include <math-emu/soft-fp.h> #include <math-emu/double.h> #include <math-emu/single.h> |
1da177e4c Linux-2.6.12-rc2 |
8 9 10 11 12 13 14 15 16 |
int fmsubs(void *frD, void *frA, void *frB, void *frC) { FP_DECL_D(R); FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(C); FP_DECL_D(T); |
d2b194ed8 powerpc/math-emu:... |
17 |
FP_DECL_EX; |
1da177e4c Linux-2.6.12-rc2 |
18 19 |
#ifdef DEBUG |
e48b1b452 [POWERPC] Replace... |
20 21 |
printk("%s: %p %p %p %p ", __func__, frD, frA, frB, frC); |
1da177e4c Linux-2.6.12-rc2 |
22 |
#endif |
d2b194ed8 powerpc/math-emu:... |
23 24 25 |
FP_UNPACK_DP(A, frA); FP_UNPACK_DP(B, frB); FP_UNPACK_DP(C, frC); |
1da177e4c Linux-2.6.12-rc2 |
26 27 28 29 30 31 32 33 34 35 36 37 |
#ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld) ", A_s, A_f1, A_f0, A_e, A_c); printk("B: %ld %lu %lu %ld (%ld) ", B_s, B_f1, B_f0, B_e, B_c); printk("C: %ld %lu %lu %ld (%ld) ", C_s, C_f1, C_f0, C_e, C_c); #endif if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) |
033b8a333 powerpc/math-emu:... |
38 |
FP_SET_EXCEPTION(EFLAG_VXIMZ); |
1da177e4c Linux-2.6.12-rc2 |
39 40 41 42 43 44 45 |
FP_MUL_D(T, A, C); if (B_c != FP_CLS_NAN) B_s ^= 1; if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) |
033b8a333 powerpc/math-emu:... |
46 |
FP_SET_EXCEPTION(EFLAG_VXISI); |
1da177e4c Linux-2.6.12-rc2 |
47 48 49 50 51 52 53 |
FP_ADD_D(R, T, B); #ifdef DEBUG printk("D: %ld %lu %lu %ld (%ld) ", R_s, R_f1, R_f0, R_e, R_c); #endif |
d2b194ed8 powerpc/math-emu:... |
54 55 56 |
__FP_PACK_DS(frD, R); return FP_CUR_EXCEPTIONS; |
1da177e4c Linux-2.6.12-rc2 |
57 |
} |