diff options
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r-- | src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c | 23 | ||||
-rw-r--r-- | src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h | 4 |
2 files changed, 26 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c index 12e0826fb9b..f60bfba3f51 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c +++ b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c @@ -592,11 +592,32 @@ spe_load_int(struct spe_function *p, unsigned rT, int i) } } +void spe_load_uint(struct spe_function *p, unsigned rT, unsigned int ui) +{ + /* If the whole value is in the lower 18 bits, use ila, which + * doesn't sign-extend. Otherwise, if the two halfwords of + * the constant are identical, use ilh. Otherwise, we have + * to use ilhu followed by iohl. + */ + if ((ui & 0xfffc0000) == ui) { + spe_ila(p, rT, ui); + } + else if ((ui >> 16) == (ui & 0xffff)) { + spe_ilh(p, rT, ui & 0xffff); + } + else { + spe_ilhu(p, rT, ui >> 16); + if (ui & 0xffff) + spe_iohl(p, rT, ui & 0xffff); + } +} + void spe_splat(struct spe_function *p, unsigned rT, unsigned rA) { - spe_ila(p, rT, 66051); + /* Duplicate bytes 0, 1, 2, and 3 across the whole register */ + spe_ila(p, rT, 0x00010203); spe_shufb(p, rT, rA, rA, rT); } diff --git a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h index 4ef05ea27d1..09400b3fb2a 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h +++ b/src/gallium/auxiliary/rtasm/rtasm_ppc_spe.h @@ -302,6 +302,10 @@ spe_load_float(struct spe_function *p, unsigned rT, float x); extern void spe_load_int(struct spe_function *p, unsigned rT, int i); +/** Load/splat immediate unsigned int into rT. */ +extern void +spe_load_uint(struct spe_function *p, unsigned rT, unsigned int ui); + /** Replicate word 0 of rA across rT. */ extern void spe_splat(struct spe_function *p, unsigned rT, unsigned rA); |