This patch adds the Move To VSR instructions (mfvsrd, mfvsrwz)
and Move From VSR instructions (mtvsrd, mtvsrwa, mtvsrwz). These
instructions are unusual in that they are considered a floating
point instruction if the indexed VSR is in the first half of the
array (0-31) but they are considered vector instructions if the
indexed VSR is in the second half of the array (32-63).
Signed-off-by: Tom Musta <tommu...@gmail.com>
---
V6: New.
target-ppc/translate.c | 42 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index e2dd272..ec945a2 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7175,6 +7175,40 @@ static void gen_stxvw4x(DisasContext *ctx)
tcg_temp_free_i64(tmp);
}
+#define MV_VSR(name, tcgop1, tcgop2, target, source) \
+static void gen_##name(DisasContext *ctx) \
+{ \
+ if (xS(ctx->opcode) < 32) { \
+ if (unlikely(!ctx->fpu_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_FPU); \
+ return; \
+ } \
+ } else { \
+ if (unlikely(!ctx->altivec_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_VPU); \
+ return; \
+ } \
+ } \
+ TCGv_i64 tmp = tcg_temp_new_i64(); \
+ tcg_gen_##tcgop1(tmp, source); \
+ tcg_gen_##tcgop2(target, tmp); \
+ tcg_temp_free_i64(tmp); \
+}
+
+
+MV_VSR(mfvsrwz, ext32u_i64, trunc_i64_tl, cpu_gpr[rA(ctx->opcode)], \
+ cpu_vsrh(xS(ctx->opcode)))
+MV_VSR(mtvsrwa, extu_tl_i64, ext32s_i64, cpu_vsrh(xT(ctx->opcode)), \
+ cpu_gpr[rA(ctx->opcode)])
+MV_VSR(mtvsrwz, extu_tl_i64, ext32u_i64, cpu_vsrh(xT(ctx->opcode)), \
+ cpu_gpr[rA(ctx->opcode)])
+#if defined(TARGET_PPC64)
+MV_VSR(mfvsrd, mov_i64, mov_i64, cpu_gpr[rA(ctx->opcode)], \
+ cpu_vsrh(xS(ctx->opcode)))
+MV_VSR(mtvsrd, mov_i64, mov_i64, cpu_vsrh(xT(ctx->opcode)), \
+ cpu_gpr[rA(ctx->opcode)])
+#endif
+
static void gen_xxpermdi(DisasContext *ctx)
{
if (unlikely(!ctx->vsx_enabled)) {
@@ -10094,6 +10128,14 @@ 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(mfvsrwz, 0x1F, 0x13, 0x03, 0x0000F800, PPC_NONE, PPC2_VSX207),
+GEN_HANDLER_E(mtvsrwa, 0x1F, 0x13, 0x06, 0x0000F800, PPC_NONE, PPC2_VSX207),
+GEN_HANDLER_E(mtvsrwz, 0x1F, 0x13, 0x07, 0x0000F800, PPC_NONE, PPC2_VSX207),
+#if defined(TARGET_PPC64)
+GEN_HANDLER_E(mfvsrd, 0x1F, 0x13, 0x01, 0x0000F800, PPC_NONE, PPC2_VSX207),
+GEN_HANDLER_E(mtvsrd, 0x1F, 0x13, 0x05, 0x0000F800, PPC_NONE, PPC2_VSX207),
+#endif
+
#undef GEN_XX2FORM
#define GEN_XX2FORM(name, opc2, opc3, fl2) \
GEN_HANDLER2_E(name, #name, 0x3C, opc2 | 0, opc3, 0, PPC_NONE, fl2), \
--
1.7.1
