[Qemu-devel] [PATCH 27/40] Add vupk{h,l}px instructions.

[Nathan Froyd]

Signed-off-by: Nathan Froyd <address@hidden>
---
 target-ppc/helper.h    |    2 ++
 target-ppc/op_helper.c |   29 +++++++++++++++++++++++++++++
 target-ppc/translate.c |    3 +++
 3 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 2ca4e26..9352a67 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -185,6 +185,8 @@ DEF_HELPER_2(vspltisw, void, avr, i32)
 DEF_HELPER_3(vspltb, void, avr, avr, i32)
 DEF_HELPER_3(vsplth, void, avr, avr, i32)
 DEF_HELPER_3(vspltw, void, avr, avr, i32)
+DEF_HELPER_2(vupkhpx, void, avr, avr)
+DEF_HELPER_2(vupklpx, void, 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 28b1fb6..5d8e678 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2381,6 +2381,35 @@ void helper_vsubcuw (ppc_avr_t *r, ppc_avr_t *a, 
ppc_avr_t *b)
     }
 }
 
+#if defined(WORDS_BIGENDIAN)
+#define UPKHI 1
+#define UPKLO 0
+#else
+#define UPKHI 0
+#define UPKLO 1
+#endif
+#define VUPKPX(suffix, hi)                                      \
+    void helper_vupk##suffix (ppc_avr_t *r, ppc_avr_t *b)       \
+    {                                                           \
+        int i;                                                  \
+        ppc_avr_t result;                                       \
+        for (i = 0; i < ARRAY_SIZE(r->u32); i++) {              \
+            uint16_t e = b->u16[hi ? i : i+4];                  \
+            uint8_t a = (e >> 15) ? 0xff : 0;                   \
+            uint8_t r = (e >> 10) & 0x1f;                       \
+            uint8_t g = (e >> 5) & 0x1f;                        \
+            uint8_t b = e & 0x1f;                               \
+            result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b;       \
+        }                                                               \
+        *r = result;                                                    \
+    }
+VUPKPX(lpx, UPKLO)
+VUPKPX(hpx, UPKHI)
+#undef VUPKPX
+
+#undef UPKHI
+#undef UPKLO
+
 #undef VECTOR_FOR_INORDER_I
 #undef HI_IDX
 #undef LO_IDX
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index b8a7cab..a280db1 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6340,6 +6340,9 @@ GEN_VXFORM(vsr, 2, 11);
         tcg_temp_free_ptr(rd);                                         \
     }
 
+GEN_VXFORM_NOA(vupkhpx, 7, 13);
+GEN_VXFORM_NOA(vupklpx, 7, 15);
+
 #define GEN_VXFORM_SIMM(name, opc2, opc3)                               \
     GEN_HANDLER(name, 0x04, opc2, opc3, 0x00000000, PPC_ALTIVEC)        \
     {                                                                   \
-- 
1.6.0.5