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[Qemu-devel] [v2 10/13] Add xxmrgh/xxmrgl
From: |
Tom Musta |
Subject: |
[Qemu-devel] [v2 10/13] Add xxmrgh/xxmrgl |
Date: |
Fri, 11 Oct 2013 08:05:32 -0500 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 |
This patch adds the VSX Merge High Word and VSX Merge Low Word
instructions.
V2: Now implemented using deposit (per Richard Henderson's comment)
Signed-off-by: Tom Musta <address@hidden>
---
target-ppc/translate.c | 41 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 41 insertions(+), 0 deletions(-)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5056ec9..e6e8b02 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7295,6 +7295,45 @@ VSX_LOGICAL(xxlor, tcg_gen_or_tl)
VSX_LOGICAL(xxlxor, tcg_gen_xor_tl)
VSX_LOGICAL(xxlnor, tcg_gen_nor_tl)
+#define VSX_XXMRG(name, high) \
+static void glue(gen_, name)(DisasContext * ctx) \
+ { \
+ TCGv_i64 a0, a1, b0, b1; \
+ if (unlikely(!ctx->vsx_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_VSXU); \
+ return; \
+ } \
+ a0 = tcg_temp_new(); \
+ a1 = tcg_temp_new(); \
+ b0 = tcg_temp_new(); \
+ b1 = tcg_temp_new(); \
+ if (high) { \
+ tcg_gen_mov_i64(a0, cpu_vsrh(xA(ctx->opcode))); \
+ tcg_gen_mov_i64(a1, cpu_vsrh(xA(ctx->opcode))); \
+ tcg_gen_mov_i64(b0, cpu_vsrh(xB(ctx->opcode))); \
+ tcg_gen_mov_i64(b1, cpu_vsrh(xB(ctx->opcode))); \
+ } else { \
+ tcg_gen_mov_i64(a0, cpu_vsrl(xA(ctx->opcode))); \
+ tcg_gen_mov_i64(a1, cpu_vsrl(xA(ctx->opcode))); \
+ tcg_gen_mov_i64(b0, cpu_vsrl(xB(ctx->opcode))); \
+ tcg_gen_mov_i64(b1, cpu_vsrl(xB(ctx->opcode))); \
+ } \
+ tcg_gen_shri_i64(a0, a0, 32); \
+ tcg_gen_shri_i64(b0, b0, 32); \
+ tcg_gen_deposit_i64(cpu_vsrh(xT(ctx->opcode)), \
+ b0, a0, 32, 32); \
+ tcg_gen_deposit_i64(cpu_vsrl(xT(ctx->opcode)), \
+ b1, a1, 32, 32); \
+ tcg_temp_free(a0); \
+ tcg_temp_free(a1); \
+ tcg_temp_free(b0); \
+ tcg_temp_free(b1); \
+ }
+
+VSX_XXMRG(xxmrghw, 1)
+VSX_XXMRG(xxmrglw, 0)
+
+
/*** SPE extension ***/
/* Register moves */
@@ -9807,6 +9846,8 @@ VSX_LOGICAL(xxlandc, 0x8, 0x11, PPC2_VSX),
VSX_LOGICAL(xxlor, 0x8, 0x12, PPC2_VSX),
VSX_LOGICAL(xxlxor, 0x8, 0x13, PPC2_VSX),
VSX_LOGICAL(xxlnor, 0x8, 0x14, PPC2_VSX),
+GEN_XX3FORM(xxmrghw, 0x08, 0x02, PPC2_VSX),
+GEN_XX3FORM(xxmrglw, 0x08, 0x06, PPC2_VSX),
GEN_XX3FORM_DM(xxpermdi, 0x08, 0x01),
--
1.7.1
- [Qemu-devel] [v2 05/13] Add stxsdx, (continued)
- [Qemu-devel] [v2 05/13] Add stxsdx, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 06/13] Add stxvw4x, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 07/13] Add VSX Scalar Move Instructions, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 08/13] Add VSX Vector Move Instructions, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 09/13] Add Power7 VSX Logical Instructions, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 10/13] Add xxmrgh/xxmrgl,
Tom Musta <=
- [Qemu-devel] [v2 11/13] Add xxsel, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 12/13] Add xxspltw, Tom Musta, 2013/10/11
- [Qemu-devel] [v2 13/13] Add xxsldwi, Tom Musta, 2013/10/11
- Re: [Qemu-devel] [v2 00/13] Stage 2 VSX Support, Richard Henderson, 2013/10/11