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| author | Tom Musta <tommusta@gmail.com> | 2014-02-12 15:23:03 -0600 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:55 +0100 |
| commit | f293f04ab5301f688ce7c9fe3006a787611c2485 (patch) | |
| tree | 8e6e2fbf119f559e53f6686ad09d565a0408739c /target-ppc/int_helper.c | |
| parent | 953f0f5842a8515fd85ae28ebcdc219f8e7b76fe (diff) | |
| download | qemu-f293f04ab5301f688ce7c9fe3006a787611c2485.tar.gz | |
target-ppc: Altivec 2.07: Add Vector Count Leading Zeroes
This patch adds the Vector Count Leading Zeroes instructions introduced
in Power ISA Version 2.07 - vclzb, vclzh, vclzw and vclzd.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/int_helper.c')
| -rw-r--r-- | target-ppc/int_helper.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index 7a50f4a2cf..7fca9f093b 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -1524,6 +1524,35 @@ VUPK(lsh, s32, s16, UPKLO) #undef UPKHI #undef UPKLO +#define VGENERIC_DO(name, element) \ + void helper_v##name(ppc_avr_t *r, ppc_avr_t *b) \ + { \ + int i; \ + \ + VECTOR_FOR_INORDER_I(i, element) { \ + r->element[i] = name(b->element[i]); \ + } \ + } + +#define clzb(v) ((v) ? clz32((uint32_t)(v) << 24) : 8) +#define clzh(v) ((v) ? clz32((uint32_t)(v) << 16) : 16) +#define clzw(v) clz32((v)) +#define clzd(v) clz64((v)) + +VGENERIC_DO(clzb, u8) +VGENERIC_DO(clzh, u16) +VGENERIC_DO(clzw, u32) +VGENERIC_DO(clzd, u64) + +#undef clzb +#undef clzh +#undef clzw +#undef clzd + + +#undef VGENERIC_DO + + #undef VECTOR_FOR_INORDER_I #undef HI_IDX #undef LO_IDX |