target-ppc: Altivec 2.07: Vector Permute and Exclusive OR

This patch adds the Vector Permuate and Exclusive OR (vpermxor) instruction introduced in Power ISA Version 2.07. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
qemu · Mar 5, 2014 · ac17454 · ac17454
1 parent 57354f8
commit ac17454
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Showing 3 changed files with 21 additions and 1 deletion.
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
@@ -323,6 +323,7 @@ DEF_HELPER_3(vncipher, void, avr, avr, avr)
 DEF_HELPER_3(vncipherlast, void, avr, avr, avr)
 DEF_HELPER_3(vshasigmaw, void, avr, avr, i32)
 DEF_HELPER_3(vshasigmad, void, avr, avr, i32)
+DEF_HELPER_4(vpermxor, void, avr, avr, avr, avr)
 
 DEF_HELPER_4(bcdadd, i32, avr, avr, avr, i32)
 DEF_HELPER_4(bcdsub, i32, avr, avr, avr, i32)

diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
@@ -2700,6 +2700,20 @@ void helper_vshasigmad(ppc_avr_t *r,  ppc_avr_t *a, uint32_t st_six)
 #undef ROTRu64
 #undef EL_IDX
 
+void helper_vpermxor(ppc_avr_t *r,  ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
+{
+    int i;
+    VECTOR_FOR_INORDER_I(i, u8) {
+        int indexA = c->u8[i] >> 4;
+        int indexB = c->u8[i] & 0xF;
+#if defined(HOST_WORDS_BIGENDIAN)
+        r->u8[i] = a->u8[indexA] ^ b->u8[indexB];
+#else
+        r->u8[i] = a->u8[15-indexA] ^ b->u8[15-indexB];
+#endif
+    }
+}
+
 #undef VECTOR_FOR_INORDER_I
 #undef HI_IDX
 #undef LO_IDX

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
@@ -7459,6 +7459,10 @@ static void gen_##op(DisasContext *ctx)       \
 VSHASIGMA(vshasigmaw)
 VSHASIGMA(vshasigmad)
 
+GEN_VXFORM3(vpermxor, 22, 0xFF)
+GEN_VXFORM_DUAL(vsldoi, PPC_ALTIVEC, PPC_NONE,
+                vpermxor, PPC_NONE, PPC2_ALTIVEC_207)
+
 /***                           VSX extension                               ***/
 
 static inline TCGv_i64 cpu_vsrh(int n)
@@ -10111,7 +10115,6 @@ GEN_HANDLER(lvsl, 0x1f, 0x06, 0x00, 0x00000001, PPC_ALTIVEC),
 GEN_HANDLER(lvsr, 0x1f, 0x06, 0x01, 0x00000001, PPC_ALTIVEC),
 GEN_HANDLER(mfvscr, 0x04, 0x2, 0x18, 0x001ff800, PPC_ALTIVEC),
 GEN_HANDLER(mtvscr, 0x04, 0x2, 0x19, 0x03ff0000, PPC_ALTIVEC),
-GEN_HANDLER(vsldoi, 0x04, 0x16, 0xFF, 0x00000400, PPC_ALTIVEC),
 GEN_HANDLER(vmladduhm, 0x04, 0x11, 0xFF, 0x00000000, PPC_ALTIVEC),
 GEN_HANDLER2(evsel0, "evsel", 0x04, 0x1c, 0x09, 0x00000000, PPC_SPE),
 GEN_HANDLER2(evsel1, "evsel", 0x04, 0x1d, 0x09, 0x00000000, PPC_SPE),
@@ -10722,6 +10725,8 @@ GEN_VXFORM_DUAL(vncipher, vncipherlast, 4, 21, PPC_NONE, PPC2_ALTIVEC_207),
 GEN_VXFORM_207(vshasigmaw, 1, 26),
 GEN_VXFORM_207(vshasigmad, 1, 27),
 
+GEN_VXFORM_DUAL(vsldoi, vpermxor, 22, 0xFF, PPC_ALTIVEC, PPC_NONE),
+
 GEN_HANDLER_E(lxsdx, 0x1F, 0x0C, 0x12, 0, PPC_NONE, PPC2_VSX),
 GEN_HANDLER_E(lxsiwax, 0x1F, 0x0C, 0x02, 0, PPC_NONE, PPC2_VSX207),
 GEN_HANDLER_E(lxsiwzx, 0x1F, 0x0C, 0x00, 0, PPC_NONE, PPC2_VSX207),