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Add vsldoi instruction. 

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6171 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-01-04 22:10:09 +00:00
parent 5e1d0985f9
commit cd633b10fd
3 changed files with 50 additions and 0 deletions
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1
target-ppc/helper.h
View File

@ -155,6 +155,7 @@ DEF_HELPER_2(lvsr, void, avr, tl);
DEF_HELPER_3(vrlb, void, avr, avr, avr)
DEF_HELPER_3(vrlh, void, avr, avr, avr)
DEF_HELPER_3(vrlw, void, avr, avr, avr)
DEF_HELPER_4(vsldoi, void, avr, avr, avr, i32)
DEF_HELPER_1(efscfsi, i32, i32)
DEF_HELPER_1(efscfui, i32, i32)

28
target-ppc/op_helper.c
View File

@ -2145,6 +2145,34 @@ VSL(h, u16)
VSL(w, u32)
#undef VSL
void helper_vsldoi (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
{
int sh = shift & 0xf;
int i;
ppc_avr_t result;
#if defined(WORDS_BIGENDIAN)
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int index = sh + i;
if (index > 0xf) {
result.u8[i] = b->u8[index-0x10];
} else {
result.u8[i] = a->u8[index];
}
}
#else
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int index = (16 - sh) + i;
if (index > 0xf) {
result.u8[i] = a->u8[index-0x10];
} else {
result.u8[i] = b->u8[index];
}
}
#endif
*r = result;
}
void helper_vslo (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
{
int sh = (b->u8[LO_IDX*0xf] >> 3) & 0xf;

21
target-ppc/translate.c
View File

@ -374,6 +374,8 @@ EXTRACT_HELPER(UIMM, 0, 16);
EXTRACT_HELPER(NB, 11, 5);
/* Shift count */
EXTRACT_HELPER(SH, 11, 5);
/* Vector shift count */
EXTRACT_HELPER(VSH, 6, 4);
/* Mask start */
EXTRACT_HELPER(MB, 6, 5);
/* Mask end */
@ -6268,6 +6270,25 @@ GEN_VXFORM(vrlb, 2, 0);
GEN_VXFORM(vrlh, 2, 1);
GEN_VXFORM(vrlw, 2, 2);
GEN_HANDLER(vsldoi, 0x04, 0x16, 0xFF, 0x00000400, PPC_ALTIVEC)
{
TCGv_ptr ra, rb, rd;
TCGv sh;
if (unlikely(!ctx->altivec_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VPU);
return;
}
ra = gen_avr_ptr(rA(ctx->opcode));
rb = gen_avr_ptr(rB(ctx->opcode));
rd = gen_avr_ptr(rD(ctx->opcode));
sh = tcg_const_i32(VSH(ctx->opcode));
gen_helper_vsldoi (rd, ra, rb, sh);
tcg_temp_free_ptr(ra);
tcg_temp_free_ptr(rb);
tcg_temp_free_ptr(rd);
tcg_temp_free(sh);
}
/*** SPE extension ***/
/* Register moves */