motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 18:23:57 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target-ppc: Altivec 2.07: Add Vector Count Leading Zeroes

Browse source 
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>
This commit is contained in:
Tom Musta 2014-02-12 15:23:03 -06:00 • committed by Alexander Graf
parent 953f0f5842
commit f293f04ab5
3 changed files with 43 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

29
target-ppc/int_helper.c
View file

@ -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