diff options
author | Brian Paul <[email protected]> | 2008-09-12 21:08:01 -0600 |
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committer | Brian Paul <[email protected]> | 2008-09-12 21:08:01 -0600 |
commit | 31a112cad4d2e515bc668b58abd4e402b4362c70 (patch) | |
tree | f953faee3ee5c98dc2e60642fda63e308e5949a5 /src/gallium/auxiliary/rtasm | |
parent | 5f3ec823385b34b8db6013fdf701c5522dc86524 (diff) |
gallium: added spe_splat_word()
Diffstat (limited to 'src/gallium/auxiliary/rtasm')
-rw-r--r-- | src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c | 25 | ||||
-rw-r--r-- | src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h | 4 |
2 files changed, 29 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c index 62e3adb357c..89f8e24ce6a 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c +++ b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c @@ -540,4 +540,29 @@ spe_zero(struct spe_function *p, unsigned rT) } +void +spe_splat_word(struct spe_function *p, unsigned rT, unsigned rA, int word) +{ + assert(word >= 0); + assert(word <= 3); + + if (word == 0) { + int tmp1 = rT; + spe_ila(p, tmp1, 66051); + spe_shufb(p, rT, rA, rA, tmp1); + } + else { + /* XXX review this, we may not need the rotqbyi instruction */ + int tmp1 = rT; + int tmp2 = spe_allocate_available_register(p); + + spe_ila(p, tmp1, 66051); + spe_rotqbyi(p, tmp2, rA, 4 * word); + spe_shufb(p, rT, tmp2, tmp2, tmp1); + + spe_release_register(p, tmp2); + } +} + + #endif /* GALLIUM_CELL */ diff --git a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h index d95e5aace34..7a3ab9ace52 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h +++ b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h @@ -308,6 +308,10 @@ spe_move(struct spe_function *p, unsigned rT, unsigned rA); extern void spe_zero(struct spe_function *p, unsigned rT); +/** rT = splat(rA, word) */ +extern void +spe_splat_word(struct spe_function *p, unsigned rT, unsigned rA, int word); + /* Floating-point instructions */ |