From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/ppc/math-emu/fdivs.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 arch/ppc/math-emu/fdivs.c (limited to 'arch/ppc/math-emu/fdivs.c') diff --git a/arch/ppc/math-emu/fdivs.c b/arch/ppc/math-emu/fdivs.c new file mode 100644 index 00000000000..b971196e317 --- /dev/null +++ b/arch/ppc/math-emu/fdivs.c @@ -0,0 +1,55 @@ +#include +#include +#include + +#include "soft-fp.h" +#include "double.h" +#include "single.h" + +int +fdivs(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)\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", __FUNCTION__); +#endif + } + if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) { + ret |= EFLAG_VXIDI; +#ifdef DEBUG + printk("%s: FPSCR_VXIDI raised\n", __FUNCTION__); +#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_DS(frD, R)); +} -- cgit v1.2.3-70-g09d2