diff options
Diffstat (limited to 'arch/ppc/math-emu/fmuls.c')
-rw-r--r-- | arch/ppc/math-emu/fmuls.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/ppc/math-emu/fmuls.c b/arch/ppc/math-emu/fmuls.c new file mode 100644 index 000000000..f22839800 --- /dev/null +++ b/arch/ppc/math-emu/fmuls.c @@ -0,0 +1,46 @@ +/* $Id: fmuls.c,v 1.1 1999/08/23 18:59:45 cort Exp $ + */ + +#include <linux/types.h> +#include <linux/errno.h> +#include <asm/uaccess.h> + +#include "soft-fp.h" +#include "double.h" +#include "single.h" + +int +fmuls(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", __FUNCTION__, frD, frA, frB); +#endif + + __FP_UNPACK_D(A, frA); + __FP_UNPACK_D(B, frB); + +#ifdef DEBUG + printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n", + A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023); + printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n", + B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023); +#endif + + if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) || + (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF)) + ret |= EFLAG_VXIMZ; + + FP_MUL_D(R, A, B); + +#ifdef DEBUG + printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n", + R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023); +#endif + + return (ret | __FP_PACK_DS(frD, R)); +} |