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author | Jeff Garzik <jeff@garzik.org> | 2006-03-29 17:18:49 -0500 |
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committer | Jeff Garzik <jeff@garzik.org> | 2006-03-29 17:18:49 -0500 |
commit | e02a4cabfcb9a999b74a2e2e6f13ffcb7ff2d606 (patch) | |
tree | 2f3db60be4c57eca2a4c3ab3f3122dcf1ec0c624 /arch/powerpc/math-emu/lfs.c | |
parent | 600511e86babe3727264a0883a3a264f6fb6caf5 (diff) | |
parent | f3cab8a0b1a772dc8b055b7affa567a366627c9e (diff) |
Merge branch 'master'
Diffstat (limited to 'arch/powerpc/math-emu/lfs.c')
-rw-r--r-- | arch/powerpc/math-emu/lfs.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/lfs.c b/arch/powerpc/math-emu/lfs.c new file mode 100644 index 00000000000..c86dee3d765 --- /dev/null +++ b/arch/powerpc/math-emu/lfs.c @@ -0,0 +1,37 @@ +#include <linux/types.h> +#include <linux/errno.h> +#include <asm/uaccess.h> + +#include "soft-fp.h" +#include "double.h" +#include "single.h" + +int +lfs(void *frD, void *ea) +{ + FP_DECL_D(R); + FP_DECL_S(A); + float f; + +#ifdef DEBUG + printk("%s: D %p, ea %p\n", __FUNCTION__, frD, ea); +#endif + + if (copy_from_user(&f, ea, sizeof(float))) + return -EFAULT; + + __FP_UNPACK_S(A, &f); + +#ifdef DEBUG + printk("A: %ld %lu %ld (%ld) [%08lx]\n", A_s, A_f, A_e, A_c, + *(unsigned long *)&f); +#endif + + FP_CONV(D, S, 2, 1, R, A); + +#ifdef DEBUG + printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); +#endif + + return __FP_PACK_D(frD, R); +} |