diff options
author | Paul Mackerras <paulus@samba.org> | 2006-03-28 17:03:19 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2006-03-28 17:03:19 +1100 |
commit | cf66c897d7fa07f57452b1a369aec37d97b11e31 (patch) | |
tree | eb74b71c2ff288f4d77423bb7e54c3c55ef08bf9 /arch/powerpc/math-emu/fsel.c | |
parent | facee873de8da5fe709c194f98eb0f2cc642a38c (diff) | |
parent | 78af90629ce98c8383ea16928e110eb97b889be6 (diff) |
Merge branch '85xx' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
Diffstat (limited to 'arch/powerpc/math-emu/fsel.c')
-rw-r--r-- | arch/powerpc/math-emu/fsel.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fsel.c b/arch/powerpc/math-emu/fsel.c new file mode 100644 index 00000000000..e36e6e72819 --- /dev/null +++ b/arch/powerpc/math-emu/fsel.c @@ -0,0 +1,38 @@ +#include <linux/types.h> +#include <linux/errno.h> +#include <asm/uaccess.h> + +#include "soft-fp.h" +#include "double.h" + +int +fsel(u32 *frD, void *frA, u32 *frB, u32 *frC) +{ + FP_DECL_D(A); + +#ifdef DEBUG + printk("%s: %p %p %p %p\n", __FUNCTION__, frD, frA, frB, frC); +#endif + + __FP_UNPACK_D(A, frA); + +#ifdef DEBUG + printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); + printk("B: %08x %08x\n", frB[0], frB[1]); + printk("C: %08x %08x\n", frC[0], frC[1]); +#endif + + if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) { + frD[0] = frB[0]; + frD[1] = frB[1]; + } else { + frD[0] = frC[0]; + frD[1] = frC[1]; + } + +#ifdef DEBUG + printk("D: %08x.%08x\n", frD[0], frD[1]); +#endif + + return 0; +} |