From 8142cddda25b8010c0fe2d6bb3aa562a2048b347 Mon Sep 17 00:00:00 2001
From: aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 4 Jan 2009 22:13:21 +0000
Subject: Add vsumsws, vsum2sws, and vsum4{sbs, shs,ubs} instructions.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6189 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-ppc/op_helper.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)

(limited to 'target-ppc/op_helper.c')

diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index c97e2ecfe9..80bf8015f2 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2534,6 +2534,109 @@ void helper_vsubcuw (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     }
 }
 
+void helper_vsumsws (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    int64_t t;
+    int i, upper;
+    ppc_avr_t result;
+    int sat = 0;
+
+#if defined(WORDS_BIGENDIAN)
+    upper = ARRAY_SIZE(r->s32)-1;
+#else
+    upper = 0;
+#endif
+    t = (int64_t)b->s32[upper];
+    for (i = 0; i < ARRAY_SIZE(r->s32); i++) {
+        t += a->s32[i];
+        result.s32[i] = 0;
+    }
+    result.s32[upper] = cvtsdsw(t, &sat);
+    *r = result;
+
+    if (sat) {
+        env->vscr |= (1 << VSCR_SAT);
+    }
+}
+
+void helper_vsum2sws (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    int i, j, upper;
+    ppc_avr_t result;
+    int sat = 0;
+
+#if defined(WORDS_BIGENDIAN)
+    upper = 1;
+#else
+    upper = 0;
+#endif
+    for (i = 0; i < ARRAY_SIZE(r->u64); i++) {
+        int64_t t = (int64_t)b->s32[upper+i*2];
+        result.u64[i] = 0;
+        for (j = 0; j < ARRAY_SIZE(r->u64); j++) {
+            t += a->s32[2*i+j];
+        }
+        result.s32[upper+i*2] = cvtsdsw(t, &sat);
+    }
+
+    *r = result;
+    if (sat) {
+        env->vscr |= (1 << VSCR_SAT);
+    }
+}
+
+void helper_vsum4sbs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    int i, j;
+    int sat = 0;
+
+    for (i = 0; i < ARRAY_SIZE(r->s32); i++) {
+        int64_t t = (int64_t)b->s32[i];
+        for (j = 0; j < ARRAY_SIZE(r->s32); j++) {
+            t += a->s8[4*i+j];
+        }
+        r->s32[i] = cvtsdsw(t, &sat);
+    }
+
+    if (sat) {
+        env->vscr |= (1 << VSCR_SAT);
+    }
+}
+
+void helper_vsum4shs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    int sat = 0;
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(r->s32); i++) {
+        int64_t t = (int64_t)b->s32[i];
+        t += a->s16[2*i] + a->s16[2*i+1];
+        r->s32[i] = cvtsdsw(t, &sat);
+    }
+
+    if (sat) {
+        env->vscr |= (1 << VSCR_SAT);
+    }
+}
+
+void helper_vsum4ubs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    int i, j;
+    int sat = 0;
+
+    for (i = 0; i < ARRAY_SIZE(r->u32); i++) {
+        uint64_t t = (uint64_t)b->u32[i];
+        for (j = 0; j < ARRAY_SIZE(r->u32); j++) {
+            t += a->u8[4*i+j];
+        }
+        r->u32[i] = cvtuduw(t, &sat);
+    }
+
+    if (sat) {
+        env->vscr |= (1 << VSCR_SAT);
+    }
+}
+
 #if defined(WORDS_BIGENDIAN)
 #define UPKHI 1
 #define UPKLO 0
-- 
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