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[Qemu-devel] [6174] Add vsplt{b,h,w} instructions.
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [6174] Add vsplt{b,h,w} instructions. |
Date: |
Sun, 04 Jan 2009 22:10:50 +0000 |
Revision: 6174
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6174
Author: aurel32
Date: 2009-01-04 22:10:49 +0000 (Sun, 04 Jan 2009)
Log Message:
-----------
Add vsplt{b,h,w} instructions.
Signed-off-by: Nathan Froyd <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
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 2009-01-04 22:10:40 UTC (rev 6173)
+++ trunk/target-ppc/helper.h 2009-01-04 22:10:49 UTC (rev 6174)
@@ -156,6 +156,9 @@
DEF_HELPER_3(vrlh, void, avr, avr, avr)
DEF_HELPER_3(vrlw, void, avr, avr, avr)
DEF_HELPER_4(vsldoi, void, avr, avr, 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_1(efscfsi, i32, i32)
DEF_HELPER_1(efscfui, i32, i32)
Modified: trunk/target-ppc/op_helper.c
===================================================================
--- trunk/target-ppc/op_helper.c 2009-01-04 22:10:40 UTC (rev 6173)
+++ trunk/target-ppc/op_helper.c 2009-01-04 22:10:49 UTC (rev 6174)
@@ -2186,6 +2186,29 @@
#endif
}
+/* Experimental testing shows that hardware masks the immediate. */
+#define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1))
+#if defined(WORDS_BIGENDIAN)
+#define SPLAT_ELEMENT(element) _SPLAT_MASKED(element)
+#else
+#define SPLAT_ELEMENT(element) (ARRAY_SIZE(r->element)-1 -
_SPLAT_MASKED(element))
+#endif
+#define VSPLT(suffix, element) \
+ void helper_vsplt##suffix (ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \
+ { \
+ uint32_t s = b->element[SPLAT_ELEMENT(element)]; \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
+ r->element[i] = s; \
+ } \
+ }
+VSPLT(b, u8)
+VSPLT(h, u16)
+VSPLT(w, u32)
+#undef VSPLT
+#undef SPLAT_ELEMENT
+#undef _SPLAT_MASKED
+
#define VSR(suffix, element) \
void helper_vsr##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \
Modified: trunk/target-ppc/translate.c
===================================================================
--- trunk/target-ppc/translate.c 2009-01-04 22:10:40 UTC (rev 6173)
+++ trunk/target-ppc/translate.c 2009-01-04 22:10:49 UTC (rev 6174)
@@ -6308,6 +6308,10 @@
tcg_temp_free_ptr(rd); \
}
+GEN_VXFORM_UIMM(vspltb, 6, 8);
+GEN_VXFORM_UIMM(vsplth, 6, 9);
+GEN_VXFORM_UIMM(vspltw, 6, 10);
+
GEN_HANDLER(vsldoi, 0x04, 0x16, 0xFF, 0x00000400, PPC_ALTIVEC)
{
TCGv_ptr ra, rb, rd;
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