[Qemu-devel] [PATCH 12/42] target-ppc: add vmrg{l, h}{b, h, w} instructions.

[Nathan Froyd]

Signed-off-by: Nathan Froyd <address@hidden>
---
 target-ppc/helper.h    |    6 ++++++
 target-ppc/op_helper.c |   35 +++++++++++++++++++++++++++++++++++
 target-ppc/translate.c |    6 ++++++
 3 files changed, 47 insertions(+), 0 deletions(-)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index efe7a1a..5a05157 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -123,6 +123,12 @@ DEF_HELPER_3(vminuw, void, avr, avr, avr)
 DEF_HELPER_3(vmaxub, void, avr, avr, avr)
 DEF_HELPER_3(vmaxuh, void, avr, avr, avr)
 DEF_HELPER_3(vmaxuw, void, avr, avr, avr)
+DEF_HELPER_3(vmrglb, void, avr, avr, avr)
+DEF_HELPER_3(vmrglh, void, avr, avr, avr)
+DEF_HELPER_3(vmrglw, void, avr, avr, avr)
+DEF_HELPER_3(vmrghb, void, avr, avr, avr)
+DEF_HELPER_3(vmrghh, void, avr, avr, avr)
+DEF_HELPER_3(vmrghw, void, avr, avr, avr)
 DEF_HELPER_3(vcmpequb, i32, avr, avr, avr)
 DEF_HELPER_3(vcmpequh, i32, avr, avr, avr)
 DEF_HELPER_3(vcmpequw, i32, avr, avr, avr)
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index d36a046..886c1fa 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2122,6 +2122,41 @@ VMINMAX(uw, u32)
 #undef VMINMAX_DO
 #undef VMINMAX
 
+#define VMRG_DO(name, element, highp)                                   \
+    void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)      \
+    {                                                                   \
+        ppc_avr_t result;                                               \
+        int i;                                                          \
+        size_t n_elems = N_ELEMS(element);                              \
+        for (i = 0; i < n_elems/2; i++) {                               \
+            if (highp) {                                                \
+                result.element[i*2+HI_IDX] = a->element[i];             \
+                result.element[i*2+LO_IDX] = b->element[i];             \
+            } else {                                                    \
+                result.element[n_elems - i*2 - (1+HI_IDX)] = 
b->element[n_elems - i - 1]; \
+                result.element[n_elems - i*2 - (1+LO_IDX)] = 
a->element[n_elems - i - 1]; \
+            }                                                           \
+        }                                                               \
+        *r = result;                                                    \
+    }
+#if defined(WORDS_BIGENDIAN)
+#define MRGHI 0
+#define MRGL0 1
+#else
+#define MRGHI 1
+#define MRGLO 0
+#endif
+#define VMRG(suffix, element)                   \
+  VMRG_DO(mrgl##suffix, element, MRGHI)         \
+  VMRG_DO(mrgh##suffix, element, MRGLO)
+VMRG(b, u8)
+VMRG(h, u16)
+VMRG(w, u32)
+#undef VMRG_DO
+#undef VMRG
+#undef MRGHI
+#undef MRGLO
+
 #undef VECTOR_FOR
 #undef VECTOR_FOR_I
 #undef VECTOR_FOR_INORDER_I
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 8b90971..5b4c5cd 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6175,6 +6175,12 @@ GEN_VXFORM(vavguw, 1154);
 GEN_VXFORM(vavgsb, 1282);
 GEN_VXFORM(vavgsh, 1346);
 GEN_VXFORM(vavgsw, 1410);
+GEN_VXFORM(vmrghb, 12);
+GEN_VXFORM(vmrghh, 76);
+GEN_VXFORM(vmrghw, 140);
+GEN_VXFORM(vmrglb, 268);
+GEN_VXFORM(vmrglh, 332);
+GEN_VXFORM(vmrglw, 396);
 
 #define GEN_VXRFORM1(opname, name, str, xo, rc)                         \
     GEN_HANDLER2(name, str, 0x4, (xo >> 1) & 0x1f, ((xo >> 6) & 0x1f) | (rc << 
4), 0x00000000, PPC_ALTIVEC) \
-- 
1.6.0.5