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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/powerpc/math-emu/fsel.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/powerpc/math-emu/fsel.c')
-rw-r--r-- | arch/powerpc/math-emu/fsel.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fsel.c b/arch/powerpc/math-emu/fsel.c new file mode 100644 index 00000000..1b0c1449 --- /dev/null +++ b/arch/powerpc/math-emu/fsel.c @@ -0,0 +1,40 @@ +#include <linux/types.h> +#include <linux/errno.h> +#include <asm/uaccess.h> + +#include <asm/sfp-machine.h> +#include <math-emu/soft-fp.h> +#include <math-emu/double.h> + +int +fsel(u32 *frD, void *frA, u32 *frB, u32 *frC) +{ + FP_DECL_D(A); + FP_DECL_EX; + +#ifdef DEBUG + printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); +#endif + + FP_UNPACK_DP(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; +} |