Add vpermr instruction from ISA 3.0.
Signed-off-by: Rajalakshmi Srinivasaraghavan <r...@linux.vnet.ibm.com>
---
target-ppc/helper.h | 1 +
target-ppc/int_helper.c | 23 +++++++++++++++++++++++
target-ppc/translate/vmx-impl.c | 18 ++++++++++++++++++
target-ppc/translate/vmx-ops.c | 1 +
4 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index d1d9418..3c476c9 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -270,6 +270,7 @@ DEF_HELPER_5(vmsumubm, void, env, avr, avr, avr, avr)
DEF_HELPER_5(vmsummbm, void, env, avr, avr, avr, avr)
DEF_HELPER_5(vsel, void, env, avr, avr, avr, avr)
DEF_HELPER_5(vperm, void, env, avr, avr, avr, avr)
+DEF_HELPER_5(vpermr, void, env, avr, avr, avr, avr)
DEF_HELPER_4(vpkshss, void, env, avr, avr, avr)
DEF_HELPER_4(vpkshus, void, env, avr, avr, avr)
DEF_HELPER_4(vpkswss, void, env, avr, avr, avr)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index d8ad56f..79e4273 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -1126,6 +1126,29 @@ void helper_vperm(CPUPPCState *env, ppc_avr_t *r,
ppc_avr_t *a, ppc_avr_t *b,
*r = result;
}
+void helper_vpermr(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
+ ppc_avr_t *c)
+{
+ ppc_avr_t result;
+ int i;
+
+ VECTOR_FOR_INORDER_I(i, u8) {
+ int s = c->u8[i] & 0x1f;
+#if defined(HOST_WORDS_BIGENDIAN)
+ int index = s & 0xf;
+#else
+ int index = 15 - (s & 0xf);
+#endif
+
+ if (s & 0x10) {
+ result.u8[i] = a->u8[15 - index];
+ } else {
+ result.u8[i] = b->u8[15 - index];
+ }
+ }
+ *r = result;
+}
+
#if defined(HOST_WORDS_BIGENDIAN)
#define VBPERMQ_INDEX(avr, i) ((avr)->u8[(i)])
#define VBPERMQ_DW(index) (((index) & 0x40) != 0)
diff --git a/target-ppc/translate/vmx-impl.c b/target-ppc/translate/vmx-impl.c
index 5ddff58..d13640f 100644
--- a/target-ppc/translate/vmx-impl.c
+++ b/target-ppc/translate/vmx-impl.c
@@ -728,6 +728,24 @@ static void gen_vmladduhm(DisasContext *ctx)
tcg_temp_free_ptr(rd);
}
+static void gen_vpermr(DisasContext *ctx)
+{
+ TCGv_ptr ra, rb, rc, rd;
+ 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));
+ rc = gen_avr_ptr(rC(ctx->opcode));
+ rd = gen_avr_ptr(rD(ctx->opcode));
+ gen_helper_vpermr(cpu_env, rd, ra, rb, rc);
+ tcg_temp_free_ptr(ra);
+ tcg_temp_free_ptr(rb);
+ tcg_temp_free_ptr(rc);
+ tcg_temp_free_ptr(rd);
+}
+
GEN_VAFORM_PAIRED(vmsumubm, vmsummbm, 18)
GEN_VAFORM_PAIRED(vmsumuhm, vmsumuhs, 19)
GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 20)
diff --git a/target-ppc/translate/vmx-ops.c b/target-ppc/translate/vmx-ops.c
index eddb5eb..966f970 100644
--- a/target-ppc/translate/vmx-ops.c
+++ b/target-ppc/translate/vmx-ops.c
@@ -220,6 +220,7 @@ GEN_VXFORM_300_EXT1(vctzb, 0x01, 0x18, 0x1C),
GEN_VXFORM_300_EXT1(vctzh, 0x01, 0x18, 0x1D),
GEN_VXFORM_300_EXT1(vctzw, 0x01, 0x18, 0x1E),
GEN_VXFORM_300_EXT1(vctzd, 0x01, 0x18, 0x1F),
+GEN_VXFORM_300(vpermr, 0x1D, 0xFF),
#define GEN_VXFORM_NOA(name, opc2, opc3) \
GEN_HANDLER(name, 0x04, opc2, opc3, 0x001f0000, PPC_ALTIVEC)
--
1.7.1
