target-ppc: add vslv instruction

vslv: Vector Shift Left Variable

Signed-off-by: Vivek Andrew Sha <vivekandrewsha@gmail.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index e93b84b9f0898a94dbd1d9b3eee9a20a0604ccfd..9703f8502cf8fd55d0f6a076a8e6df60928a1eff 100644 (file)
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -211,6 +211,7 @@ DEF_HELPER_3(vslw, void, avr, avr, avr)
 DEF_HELPER_3(vsld, void, avr, avr, avr)
 DEF_HELPER_3(vslo, void, avr, avr, avr)
 DEF_HELPER_3(vsro, void, avr, avr, avr)
+DEF_HELPER_3(vslv, 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)

diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 9b4de6926bf28e09aba82ca19b3ca3450e97bd1f..12fe1448fa536a9a4b3e39a895c660407f54e901 100644 (file)
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -1696,6 +1696,20 @@ VSL(w, u32, 0x1F)
 VSL(d, u64, 0x3F)
 #undef VSL
 
+void helper_vslv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    int i;
+    unsigned int shift, bytes, size;
+
+    size = ARRAY_SIZE(r->u8);
+    for (i = 0; i < size; i++) {
+        shift = b->u8[i] & 0x7;             /* extract shift value */
+        bytes = (a->u8[i] << 8) +             /* extract adjacent bytes */
+            (((i + 1) < size) ? a->u8[i + 1] : 0);
+        r->u8[i] = (bytes << shift) >> 8;   /* shift and store result */
+    }
+}
+
 void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
 {
     int sh = shift & 0xf;

diff --git a/target-ppc/translate/vmx-impl.c b/target-ppc/translate/vmx-impl.c
index 5cd007e7de3f5bf6ca7d862dd60a18259c7a1abd..e97966875019120eb8c64acf0f9310e339daad40 100644 (file)
--- a/target-ppc/translate/vmx-impl.c
+++ b/target-ppc/translate/vmx-impl.c
@@ -383,6 +383,7 @@ GEN_VXFORM(vsrab, 2, 12);
 GEN_VXFORM(vsrah, 2, 13);
 GEN_VXFORM(vsraw, 2, 14);
 GEN_VXFORM(vsrad, 2, 15);
+GEN_VXFORM(vslv, 2, 29);
 GEN_VXFORM(vslo, 6, 16);
 GEN_VXFORM(vsro, 6, 17);
 GEN_VXFORM(vaddcuw, 0, 6);

diff --git a/target-ppc/translate/vmx-ops.c b/target-ppc/translate/vmx-ops.c
index 0be69890d10c116d9f980544e3921356db2e18b6..61e08b2f2d545f7923fbf8c8bf72da070037f06f 100644 (file)
--- a/target-ppc/translate/vmx-ops.c
+++ b/target-ppc/translate/vmx-ops.c
@@ -38,6 +38,9 @@ GEN_HANDLER(name, 0x04, opc2, opc3, 0x00000000, PPC_ALTIVEC)
 #define GEN_VXFORM_207(name, opc2, opc3) \
 GEN_HANDLER_E(name, 0x04, opc2, opc3, 0x00000000, PPC_NONE, PPC2_ALTIVEC_207)
 
+#define GEN_VXFORM_300(name, opc2, opc3)                                \
+GEN_HANDLER_E(name, 0x04, opc2, opc3, 0x00000000, PPC_NONE, PPC2_ISA300)
+
 #define GEN_VXFORM_DUAL(name0, name1, opc2, opc3, type0, type1) \
 GEN_HANDLER_E(name0##_##name1, 0x4, opc2, opc3, 0x00000000, type0, type1)
 
@@ -107,6 +110,7 @@ GEN_VXFORM(vsrab, 2, 12),
 GEN_VXFORM(vsrah, 2, 13),
 GEN_VXFORM(vsraw, 2, 14),
 GEN_VXFORM_207(vsrad, 2, 15),
+GEN_VXFORM_300(vslv, 2, 29),
 GEN_VXFORM(vslo, 6, 16),
 GEN_VXFORM(vsro, 6, 17),
 GEN_VXFORM(vaddcuw, 0, 6),