[Qemu-devel] [6169] Add lvs{l,r} instructions.

[Aurelien Jarno]

Revision: 6169
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6169
Author:   aurel32
Date:     2009-01-04 22:09:42 +0000 (Sun, 04 Jan 2009)

Log Message:
-----------
Add lvs{l,r} 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 22:09:31 UTC (rev 6168)
+++ trunk/target-ppc/helper.h   2009-01-04 22:09:42 UTC (rev 6169)
@@ -150,6 +150,8 @@
 DEF_HELPER_3(vsro, void, avr, avr, avr)
 DEF_HELPER_3(vaddcuw, void, avr, avr, avr)
 DEF_HELPER_3(vsubcuw, void, avr, avr, avr)
+DEF_HELPER_2(lvsl, void, avr, tl);
+DEF_HELPER_2(lvsr, void, avr, tl);
 
 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 22:09:31 UTC (rev 6168)
+++ trunk/target-ppc/op_helper.c        2009-01-04 22:09:42 UTC (rev 6169)
@@ -1972,6 +1972,24 @@
   for (index = ARRAY_SIZE(r->element)-1; index >= 0; index--)
 #endif
 
+void helper_lvsl (ppc_avr_t *r, target_ulong sh)
+{
+    int i, j = (sh & 0xf);
+
+    VECTOR_FOR_INORDER_I (i, u8) {
+        r->u8[i] = j++;
+    }
+}
+
+void helper_lvsr (ppc_avr_t *r, target_ulong sh)
+{
+    int i, j = 0x10 - (sh & 0xf);
+
+    VECTOR_FOR_INORDER_I (i, u8) {
+        r->u8[i] = j++;
+    }
+}
+
 void helper_vaddcuw (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int i;

Modified: trunk/target-ppc/translate.c
===================================================================
--- trunk/target-ppc/translate.c        2009-01-04 22:09:31 UTC (rev 6168)
+++ trunk/target-ppc/translate.c        2009-01-04 22:09:42 UTC (rev 6169)
@@ -6146,6 +6146,38 @@
 /* As we don't emulate the cache, stvxl is stricly equivalent to stvx */
 GEN_VR_STX(svxl, 0x07, 0x0F);
 
+GEN_HANDLER(lvsl, 0x1f, 0x06, 0x00, 0x00000001, PPC_ALTIVEC)
+{
+    TCGv_ptr rd;
+    TCGv EA;
+    if (unlikely(!ctx->altivec_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VPU);
+        return;
+    }
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    rd = gen_avr_ptr(rD(ctx->opcode));
+    gen_helper_lvsl(rd, EA);
+    tcg_temp_free(EA);
+    tcg_temp_free_ptr(rd);
+}
+
+GEN_HANDLER(lvsr, 0x1f, 0x06, 0x01, 0x00000001, PPC_ALTIVEC)
+{
+    TCGv_ptr rd;
+    TCGv EA;
+    if (unlikely(!ctx->altivec_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VPU);
+        return;
+    }
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    rd = gen_avr_ptr(rD(ctx->opcode));
+    gen_helper_lvsr(rd, EA);
+    tcg_temp_free(EA);
+    tcg_temp_free_ptr(rd);
+}
+
 /* Logical operations */
 #define GEN_VX_LOGICAL(name, tcg_op, opc2, opc3)                        \
 GEN_HANDLER(name, 0x04, opc2, opc3, 0x00000000, PPC_ALTIVEC)            \