[Qemu-devel] [6156] Add vavg{s,u}{b,h,w} instructions.

[Qemu-devel] [6156] Add vavg{s,u}{b,h,w} instructions.

[Aurelien Jarno]

Revision: 6156
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6156
Author:   aurel32
Date:     2009-01-03 13:31:49 +0000 (Sat, 03 Jan 2009)

Log Message:
-----------
Add vavg{s,u}{b,h,w} instructions.

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

Modified Paths:
--------------
    trunk/target-ppc/helper.h
    trunk/target-ppc/op_helper.c
    trunk/target-ppc/translate.c

Modified: trunk/target-ppc/helper.h
===================================================================
--- trunk/target-ppc/helper.h	2009-01-03 13:31:40 UTC (rev 6155)
+++ trunk/target-ppc/helper.h	2009-01-03 13:31:49 UTC (rev 6156)
@@ -105,6 +105,13 @@
 DEF_HELPER_3(vsububm, void, avr, avr, avr)
 DEF_HELPER_3(vsubuhm, void, avr, avr, avr)
 DEF_HELPER_3(vsubuwm, void, avr, avr, avr)
+DEF_HELPER_3(vavgub, void, avr, avr, avr)
+DEF_HELPER_3(vavguh, void, avr, avr, avr)
+DEF_HELPER_3(vavguw, void, avr, avr, avr)
+DEF_HELPER_3(vavgsb, void, avr, avr, avr)
+DEF_HELPER_3(vavgsh, void, avr, avr, avr)
+DEF_HELPER_3(vavgsw, void, avr, avr, avr)
+
 DEF_HELPER_1(efscfsi, i32, i32)
 DEF_HELPER_1(efscfui, i32, i32)
 DEF_HELPER_1(efscfuf, i32, i32)

Modified: trunk/target-ppc/op_helper.c
===================================================================
--- trunk/target-ppc/op_helper.c	2009-01-03 13:31:40 UTC (rev 6155)
+++ trunk/target-ppc/op_helper.c	2009-01-03 13:31:49 UTC (rev 6156)
@@ -1988,6 +1988,25 @@
 #undef VARITH_DO
 #undef VARITH
 
+#define VAVG_DO(name, element, etype)                                   \
+    void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)      \
+    {                                                                   \
+        int i;                                                          \
+        for (i = 0; i < ARRAY_SIZE(r->element); i++) {                  \
+            etype x = (etype)a->element[i] + (etype)b->element[i] + 1;  \
+            r->element[i] = x >> 1;                                     \
+        }                                                               \
+    }
+
+#define VAVG(type, signed_element, signed_type, unsigned_element, unsigned_type) \
+    VAVG_DO(avgs##type, signed_element, signed_type)                    \
+    VAVG_DO(avgu##type, unsigned_element, unsigned_type)
+VAVG(b, s8, int16_t, u8, uint16_t)
+VAVG(h, s16, int32_t, u16, uint32_t)
+VAVG(w, s32, int64_t, u32, uint64_t)
+#undef VAVG_DO
+#undef VAVG
+
 #undef VECTOR_FOR_INORDER_I
 #undef HI_IDX
 #undef LO_IDX

Modified: trunk/target-ppc/translate.c
===================================================================
--- trunk/target-ppc/translate.c	2009-01-03 13:31:40 UTC (rev 6155)
+++ trunk/target-ppc/translate.c	2009-01-03 13:31:49 UTC (rev 6156)
@@ -6187,6 +6187,13 @@
 GEN_VXFORM(vsububm, 0, 16);
 GEN_VXFORM(vsubuhm, 0, 17);
 GEN_VXFORM(vsubuwm, 0, 18);
+GEN_VXFORM(vavgub, 1, 16);
+GEN_VXFORM(vavguh, 1, 17);
+GEN_VXFORM(vavguw, 1, 18);
+GEN_VXFORM(vavgsb, 1, 20);
+GEN_VXFORM(vavgsh, 1, 21);
+GEN_VXFORM(vavgsw, 1, 22);
+
 /***                           SPE extension                               ***/
 /* Register moves */