[Qemu-devel] [PATCH 37/40] Add vmsumsh{m,s} instructions.

[Nathan Froyd]

Signed-off-by: Nathan Froyd <address@hidden>
---
 target-ppc/helper.h    |    2 ++
 target-ppc/op_helper.c |   34 ++++++++++++++++++++++++++++++++++
 target-ppc/translate.c |    1 +
 3 files changed, 37 insertions(+), 0 deletions(-)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index ceb7351..b4b9521 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -208,6 +208,8 @@ DEF_HELPER_4(vmhaddshs, void, avr, avr, avr, avr)
 DEF_HELPER_4(vmhraddshs, void, avr, avr, avr, avr)
 DEF_HELPER_4(vmsumuhm, void, avr, avr, avr, avr)
 DEF_HELPER_4(vmsumuhs, void, avr, avr, avr, avr)
+DEF_HELPER_4(vmsumshm, void, avr, avr, avr, avr)
+DEF_HELPER_4(vmsumshs, void, avr, avr, avr, avr)
 
 DEF_HELPER_1(efscfsi, i32, i32)
 DEF_HELPER_1(efscfui, i32, i32)
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 7c72a52..097153e 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2246,6 +2246,40 @@ void helper_vmsummbm (ppc_avr_t *r, ppc_avr_t *a, 
ppc_avr_t *b, ppc_avr_t *c)
     }
 }
 
+void helper_vmsumshm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
+{
+    int32_t prod[8];
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(r->s16); i++) {
+        prod[i] = a->s16[i] * b->s16[i];
+    }
+
+    VECTOR_FOR_INORDER_I(i, s32) {
+        r->s32[i] = c->s32[i] + prod[2*i] + prod[2*i+1];
+    }
+}
+
+void helper_vmsumshs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
+{
+    int32_t prod[8];
+    int i;
+    int sat = 0;
+
+    for (i = 0; i < ARRAY_SIZE(r->s16); i++) {
+        prod[i] = (int32_t)a->s16[i] * b->s16[i];
+    }
+
+    VECTOR_FOR_INORDER_I (i, s32) {
+        int64_t t = (int64_t)c->s32[i] + prod[2*i] + prod[2*i+1];
+        r->u32[i] = cvtsdsw(t, &sat);
+    }
+
+    if (sat) {
+        env->vscr |= (1 << VSCR_SAT);
+    }
+}
+
 void helper_vmsumubm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
 {
     uint16_t prod[16];
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 9e0b58e..a9ab8d5 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6481,6 +6481,7 @@ GEN_VAFORM_PAIRED(vmhaddshs, vmhraddshs, 16)
 
 GEN_VAFORM_PAIRED(vmsumubm, vmsummbm, 18)
 GEN_VAFORM_PAIRED(vmsumuhm, vmsumuhs, 19)
+GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 20)
 GEN_VAFORM_PAIRED(vsel, vperm, 21)
 
 /***                           SPE extension                               ***/
-- 
1.6.0.5