[Qemu-devel] [PATCH v2 17/17] target-ppc: add stxvb16x and stxvh8x

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

stxvb16x: Store VSX Vector Byte*16
stxvh8x:  Store VSX Vector Halfword*8

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target-ppc/translate/vsx-impl.inc.c | 55 +++++++++++++++++++++++++++++++++++++
 target-ppc/translate/vsx-ops.inc.c  |  2 ++
 2 files changed, 57 insertions(+)

diff --git a/target-ppc/translate/vsx-impl.inc.c b/target-ppc/translate/vsx-impl.inc.c
index f2fc5f9..20afe3b 100644
--- a/target-ppc/translate/vsx-impl.inc.c
+++ b/target-ppc/translate/vsx-impl.inc.c
@@ -165,6 +165,61 @@ static void gen_lxvh8x(DisasContext *ctx)
     tcg_temp_free(EA);
 }
 
+static void gen_stxvb16x(DisasContext *ctx)
+{
+    TCGv_i64 xsh = cpu_vsrh(xS(ctx->opcode));
+    TCGv_i64 xsl = cpu_vsrl(xS(ctx->opcode));
+    TCGv EA;
+
+    if (unlikely(!ctx->vsx_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VSXU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_INT);
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+
+    if (ctx->le_mode) {
+        tcg_gen_qemu_st_i64(xsh, EA, ctx->mem_idx, MO_BEQ);
+        tcg_gen_addi_tl(EA, EA, 8);
+        tcg_gen_qemu_st_i64(xsl, EA, ctx->mem_idx, MO_BEQ);
+    } else {
+        gen_helper_bswap32x2(xsh, xsh);
+        tcg_gen_qemu_st_i64(xsh, EA, ctx->mem_idx, MO_LEQ);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_helper_bswap32x2(xsl, xsl);
+        tcg_gen_qemu_st_i64(xsl, EA, ctx->mem_idx, MO_LEQ);
+    }
+    tcg_temp_free(EA);
+}
+
+static void gen_stxvh8x(DisasContext *ctx)
+{
+    TCGv_i64 xsh = cpu_vsrh(xS(ctx->opcode));
+    TCGv_i64 xsl = cpu_vsrl(xS(ctx->opcode));
+    TCGv EA;
+
+    if (unlikely(!ctx->vsx_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VSXU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_INT);
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    if (ctx->le_mode) {
+        tcg_gen_qemu_st_i64(xsh, EA, ctx->mem_idx, MO_BEQ);
+        tcg_gen_addi_tl(EA, EA, 8);
+        tcg_gen_qemu_st_i64(xsl, EA, ctx->mem_idx, MO_BEQ);
+    } else {
+        gen_helper_bswap32x2(xsh, xsh);
+        tcg_gen_qemu_st_i64(xsh, EA, ctx->mem_idx, MO_LEQ);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_helper_bswap32x2(xsl, xsl);
+        tcg_gen_qemu_st_i64(xsl, EA, ctx->mem_idx, MO_LEQ);
+    }
+    tcg_temp_free(EA);
+}
+
 #define VSX_STORE_SCALAR(name, operation)                     \
 static void gen_##name(DisasContext *ctx)                     \
 {                                                             \
diff --git a/target-ppc/translate/vsx-ops.inc.c b/target-ppc/translate/vsx-ops.inc.c
index 598b349..f5afa0f 100644
--- a/target-ppc/translate/vsx-ops.inc.c
+++ b/target-ppc/translate/vsx-ops.inc.c
@@ -17,6 +17,8 @@ GEN_HANDLER_E(stxsiwx, 0x1F, 0xC, 0x04, 0, PPC_NONE, PPC2_VSX207),
 GEN_HANDLER_E(stxsspx, 0x1F, 0xC, 0x14, 0, PPC_NONE, PPC2_VSX207),
 GEN_HANDLER_E(stxvd2x, 0x1F, 0xC, 0x1E, 0, PPC_NONE, PPC2_VSX),
 GEN_HANDLER_E(stxvw4x, 0x1F, 0xC, 0x1C, 0, PPC_NONE, PPC2_VSX),
+GEN_HANDLER_E(stxvh8x, 0x1F, 0x0C, 0x1D, 0, PPC_NONE,  PPC2_ISA300),
+GEN_HANDLER_E(stxvb16x, 0x1F, 0x0C, 0x1F, 0, PPC_NONE, PPC2_ISA300),
 
 GEN_HANDLER_E(mfvsrwz, 0x1F, 0x13, 0x03, 0x0000F800, PPC_NONE, PPC2_VSX207),
 GEN_HANDLER_E(mtvsrwa, 0x1F, 0x13, 0x06, 0x0000F800, PPC_NONE, PPC2_VSX207),
-- 
2.7.4