[Qemu-ppc] [PATCH v2 5/6] target-ppc: add vprtyb[w/d/q] instructions

[Nikunj A Dadhania]

From: Ankit Kumar <address@hidden>

Add following POWER ISA 3.0 instructions.
vprtybw: Vector Parity Byte Word
vprtybd: Vector Parity Byte Double Word
vprtybq: Vector Parity Byte Quad Word

Signed-off-by: Ankit Kumar <address@hidden>
Signed-off-by: Nikunj A Dadhania <address@hidden>
---
 target-ppc/helper.h                 |  3 +++
 target-ppc/int_helper.c             | 31 +++++++++++++++++++++++++++++++
 target-ppc/translate/vmx-impl.inc.c |  3 +++
 target-ppc/translate/vmx-ops.inc.c  |  4 ++++
 4 files changed, 41 insertions(+)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index d6ee26e..7d42f99 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -223,6 +223,9 @@ DEF_HELPER_3(vsro, void, avr, avr, avr)
 DEF_HELPER_3(vsrv, void, avr, avr, avr)
 DEF_HELPER_3(vslv, void, avr, avr, avr)
 DEF_HELPER_3(vaddcuw, void, avr, avr, avr)
+DEF_HELPER_2(vprtybw, void, avr, avr)
+DEF_HELPER_2(vprtybd, void, avr, avr)
+DEF_HELPER_2(vprtybq, void, avr, avr)
 DEF_HELPER_3(vsubcuw, void, avr, avr, avr)
 DEF_HELPER_2(lvsl, void, avr, tl)
 DEF_HELPER_2(lvsr, void, avr, tl)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 0fd92ed..358ffff 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -527,6 +527,37 @@ void helper_vaddcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t 
*b)
     }
 }
 
+/* vprtyb[w/d] */
+#define VPRTYB(name, element)                               \
+void glue(helper_, name)(ppc_avr_t *r, ppc_avr_t *b)        \
+{                                                           \
+    int i, j;                                               \
+    uint8_t s;                                              \
+    int nr_b = sizeof(b->element[0]) / sizeof(b->u8[0]);    \
+    for (i = 0; i < ARRAY_SIZE(r->element); i++) {          \
+        s = 0;                                              \
+        for (j = i * nr_b; j < (i + 1) * nr_b; j++) {       \
+            s ^= (b->u8[j] & 1);                            \
+        }                                                   \
+        r->element[i] = (!s) ? 0 : 1;                       \
+    }                                                       \
+}
+VPRTYB(vprtybw, u32)
+VPRTYB(vprtybd, u64)
+#undef VPTRYB
+
+/* vprtybq */
+void helper_vprtybq(ppc_avr_t *r, ppc_avr_t *b)
+{
+    int i;
+    uint8_t s = 0;
+    for (i = 0; i < 16; i++) {
+        s ^= (b->u8[i] & 1);
+    }
+    r->u64[LO_IDX] = (!s) ? 0 : 1;
+    r->u64[HI_IDX] = 0;
+}
+
 #define VARITH_DO(name, op, element)                                    \
     void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)       \
     {                                                                   \
diff --git a/target-ppc/translate/vmx-impl.inc.c 
b/target-ppc/translate/vmx-impl.inc.c
index 500c43f..e1d0897 100644
--- a/target-ppc/translate/vmx-impl.inc.c
+++ b/target-ppc/translate/vmx-impl.inc.c
@@ -705,6 +705,9 @@ GEN_VXFORM_NOA_ENV(vrfim, 5, 11);
 GEN_VXFORM_NOA_ENV(vrfin, 5, 8);
 GEN_VXFORM_NOA_ENV(vrfip, 5, 10);
 GEN_VXFORM_NOA_ENV(vrfiz, 5, 9);
+GEN_VXFORM_NOA(vprtybw, 1, 24);
+GEN_VXFORM_NOA(vprtybd, 1, 24);
+GEN_VXFORM_NOA(vprtybq, 1, 24);
 
 #define GEN_VXFORM_SIMM(name, opc2, opc3)                               \
 static void glue(gen_, name)(DisasContext *ctx)                                
 \
diff --git a/target-ppc/translate/vmx-ops.inc.c 
b/target-ppc/translate/vmx-ops.inc.c
index a5ad4d4..c631780 100644
--- a/target-ppc/translate/vmx-ops.inc.c
+++ b/target-ppc/translate/vmx-ops.inc.c
@@ -122,6 +122,10 @@ GEN_VXFORM_300(vslv, 2, 29),
 GEN_VXFORM(vslo, 6, 16),
 GEN_VXFORM(vsro, 6, 17),
 GEN_VXFORM(vaddcuw, 0, 6),
+GEN_HANDLER_E_2(vprtybw, 0x4, 0x1, 0x18, 8, 0, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E_2(vprtybd, 0x4, 0x1, 0x18, 9, 0, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E_2(vprtybq, 0x4, 0x1, 0x18, 10, 0, PPC_NONE, PPC2_ISA300),
+
 GEN_VXFORM(vsubcuw, 0, 22),
 GEN_VXFORM_DUAL(vaddubs, vmul10uq, 0, 8, PPC_ALTIVEC, PPC_NONE),
 GEN_VXFORM_DUAL(vadduhs, vmul10euq, 0, 9, PPC_ALTIVEC, PPC_NONE),
-- 
2.7.4