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target-ppc: Add xxinsertw instruction 

xxinsertw: VSX Vector Insert Word

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Nikunj A Dadhania 2017-01-06 11:44:44 +05:30 committed by David Gibson
parent 8ad901e558
commit 3398b7428b
4 changed files with 30 additions and 2 deletions
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1
target/ppc/helper.h
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@ -536,6 +536,7 @@ DEF_HELPER_2(xvrspiz, void, env, i32)
DEF_HELPER_2(xxperm, void, env, i32)
DEF_HELPER_2(xxpermr, void, env, i32)
DEF_HELPER_4(xxextractuw, void, env, tl, tl, i32)
DEF_HELPER_4(xxinsertw, void, env, tl, tl, i32)
DEF_HELPER_2(efscfsi, i32, env, i32)
DEF_HELPER_2(efscfui, i32, env, i32)

25
target/ppc/int_helper.c
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@ -2027,6 +2027,31 @@ void helper_xxextractuw(CPUPPCState *env, target_ulong xtn,
putVSR(xtn, &xt, env);
}
void helper_xxinsertw(CPUPPCState *env, target_ulong xtn,
target_ulong xbn, uint32_t index)
{
ppc_vsr_t xt, xb;
size_t es = sizeof(uint32_t);
int ins_index, i = 0;
getVSR(xbn, &xb, env);
getVSR(xtn, &xt, env);
#if defined(HOST_WORDS_BIGENDIAN)
ins_index = index;
for (i = 0; i < es && ins_index < 16; i++, ins_index++) {
xt.u8[ins_index] = xb.u8[8 - es + i];
}
#else
ins_index = 15 - index;
for (i = es - 1; i >= 0 && ins_index >= 0; i--, ins_index--) {
xt.u8[ins_index] = xb.u8[8 + i];
}
#endif
putVSR(xtn, &xt, env);
}
#define VEXT_SIGNED(name, element, mask, cast, recast) \
void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \
{ \

5
target/ppc/translate/vsx-impl.inc.c
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@ -1180,7 +1180,7 @@ static void gen_xxsldwi(DisasContext *ctx)
tcg_temp_free_i64(xtl);
}
#define VSX_EXTRACT(name) \
#define VSX_EXTRACT_INSERT(name) \
static void gen_##name(DisasContext *ctx) \
{ \
TCGv xt, xb; \
@ -1208,7 +1208,8 @@ static void gen_##name(DisasContext *ctx) \
tcg_temp_free_i32(t0); \
}
VSX_EXTRACT(xxextractuw)
VSX_EXTRACT_INSERT(xxextractuw)
VSX_EXTRACT_INSERT(xxinsertw)
#undef GEN_XX2FORM
#undef GEN_XX3FORM

1
target/ppc/translate/vsx-ops.inc.c
View File

@ -285,6 +285,7 @@ GEN_XX2FORM(xxspltw, 0x08, 0x0A, PPC2_VSX),
GEN_XX1FORM(xxspltib, 0x08, 0x0B, PPC2_ISA300),
GEN_XX3FORM_DM(xxsldwi, 0x08, 0x00),
GEN_XX2FORM_EXT(xxextractuw, 0x0A, 0x0A, PPC2_ISA300),
GEN_XX2FORM_EXT(xxinsertw, 0x0A, 0x0B, PPC2_ISA300),
#define GEN_XXSEL_ROW(opc3) \
GEN_HANDLER2_E(xxsel, "xxsel", 0x3C, 0x18, opc3, 0, PPC_NONE, PPC2_VSX), \