[Qemu-devel] [PATCH v5 3/9] target-ppc: Implement mtvsrws instruction

[Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>]

From: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>

mtvsrws: Move To VSR Word & Splat

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
 target-ppc/translate/vsx-impl.inc.c | 23 +++++++++++++++++++++++
 target-ppc/translate/vsx-ops.inc.c  |  1 +
 2 files changed, 24 insertions(+)

diff --git a/target-ppc/translate/vsx-impl.inc.c b/target-ppc/translate/vsx-impl.inc.c
index c4c50dd..fa8240f 100644
--- a/target-ppc/translate/vsx-impl.inc.c
+++ b/target-ppc/translate/vsx-impl.inc.c
@@ -257,6 +257,29 @@ static void gen_mtvsrdd(DisasContext *ctx)
     tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_gpr[rB(ctx->opcode)]);
 }
 
+static void gen_mtvsrws(DisasContext *ctx)
+{
+    TCGv_i64 t0 = tcg_temp_new_i64();
+
+    if (xT(ctx->opcode) < 32) {
+        if (unlikely(!ctx->vsx_enabled)) {
+            gen_exception(ctx, POWERPC_EXCP_VSXU);
+            return;
+        }
+    } else {
+        if (unlikely(!ctx->altivec_enabled)) {
+            gen_exception(ctx, POWERPC_EXCP_VPU);
+            return;
+        }
+    }
+
+    tcg_gen_mov_i64(t0, cpu_gpr[rA(ctx->opcode)]);
+    tcg_gen_deposit_i64(cpu_vsrl(xT(ctx->opcode)), t0, t0, 32, 32);
+    tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrl(xT(ctx->opcode)));
+
+    tcg_temp_free_i64(t0);
+}
+
 #endif
 
 static void gen_xxpermdi(DisasContext *ctx)
diff --git a/target-ppc/translate/vsx-ops.inc.c b/target-ppc/translate/vsx-ops.inc.c
index 1287973..d5f5b87 100644
--- a/target-ppc/translate/vsx-ops.inc.c
+++ b/target-ppc/translate/vsx-ops.inc.c
@@ -24,6 +24,7 @@ GEN_HANDLER_E(mfvsrd, 0x1F, 0x13, 0x01, 0x0000F800, PPC_NONE, PPC2_VSX207),
 GEN_HANDLER_E(mtvsrd, 0x1F, 0x13, 0x05, 0x0000F800, PPC_NONE, PPC2_VSX207),
 GEN_HANDLER_E(mfvsrld, 0X1F, 0x13, 0x09, 0x0000F800, PPC_NONE, PPC2_ISA300),
 GEN_HANDLER_E(mtvsrdd, 0X1F, 0x13, 0x0D, 0x0, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E(mtvsrws, 0x1F, 0x13, 0x0C, 0x0000F800, PPC_NONE, PPC2_ISA300),
 #endif
 
 #define GEN_XX1FORM(name, opc2, opc3, fl2)                              \
-- 
2.7.4