[Qemu-devel] [PATCH 39/42] target-ppc: 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 f8d8272..8086ca4 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2299,6 +2299,40 @@ 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;
+
+  VECTOR_FOR_I(i, s16) {
+    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;
+
+  VECTOR_FOR_I (i, s16) {
+    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 28edda6..9a69861 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6454,6 +6454,7 @@ GEN_HANDLER(vsldoi, 0x04, 0x16, 0xFF, 0x00000400, 
PPC_ALTIVEC)
 GEN_VAFORM_PAIRED(vmhaddshs, vmhraddshs, 32)
 GEN_VAFORM_PAIRED(vmsumubm, vmsummbm, 36)
 GEN_VAFORM_PAIRED(vmsumuhm, vmsumuhs, 38)
+GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 40)
 GEN_VAFORM_PAIRED(vsel, vperm, 42)
 
 /***                           SPE extension                               ***/
-- 
1.6.0.5