From: Anton Blanchard <anton@samba.org>
To: agraf@suse.de
Cc: tommusta@gmail.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
rth@twiddle.net
Subject: [Qemu-devel] [PATCH 7/7] Add xxpermdi
Date: Tue, 22 Oct 2013 22:09:35 +1100 [thread overview]
Message-ID: <20131022220935.19f5ad21@kryten> (raw)
In-Reply-To: <20131022220546.2a20d02a@kryten>
From: Tom Musta <tommusta@gmail.com>
This patch adds the xxpermdi instruction. The instruction
uses bits 22, 23, 29 and 30 for non-opcode fields (DM, AX
and BX). This results in overloading of the opcode table
with aliases, which can be seen in the GEN_XX3FORM_DM
macro.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
---
Index: b/target-ppc/translate.c
===================================================================
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7039,10 +7039,28 @@ static void gen_stxvd2x(DisasContext *ct
tcg_temp_free(EA);
}
+static void gen_xxpermdi(DisasContext *ctx)
+{
+ if (unlikely(!ctx->vsx_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_VSXU);
+ return;
+ }
+
+ if ((DM(ctx->opcode) & 2) == 0) {
+ tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrh(xA(ctx->opcode)));
+ } else {
+ tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrl(xA(ctx->opcode)));
+ }
+ if ((DM(ctx->opcode) & 1) == 0) {
+ tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_vsrh(xB(ctx->opcode)));
+ } else {
+ tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_vsrl(xB(ctx->opcode)));
+ }
+}
+
/*** SPE extension ***/
/* Register moves */
-
static inline void gen_evmra(DisasContext *ctx)
{
@@ -9492,6 +9510,27 @@ GEN_HANDLER_E(lxvd2x, 0x1F, 0x0C, 0x1A,
GEN_HANDLER_E(stxvd2x, 0x1F, 0xC, 0x1E, 0, PPC_NONE, PPC2_VSX),
+#undef GEN_XX3FORM_DM
+#define GEN_XX3FORM_DM(name, opc2, opc3) \
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x00, opc3|0x00, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x01, opc3|0x00, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x02, opc3|0x00, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x03, opc3|0x00, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x00, opc3|0x04, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x01, opc3|0x04, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x02, opc3|0x04, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x03, opc3|0x04, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x00, opc3|0x08, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x01, opc3|0x08, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x02, opc3|0x08, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x03, opc3|0x08, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x00, opc3|0x0C, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x01, opc3|0x0C, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x02, opc3|0x0C, 0, PPC_NONE, PPC2_VSX),\
+GEN_HANDLER2_E(name, #name, 0x3C, opc2|0x03, opc3|0x0C, 0, PPC_NONE, PPC2_VSX)
+
+GEN_XX3FORM_DM(xxpermdi, 0x08, 0x01),
+
#undef GEN_SPE
#define GEN_SPE(name0, name1, opc2, opc3, inval0, inval1, type) \
GEN_OPCODE_DUAL(name0##_##name1, 0x04, opc2, opc3, inval0, inval1, type, PPC_NONE)
next prev parent reply other threads:[~2013-10-22 11:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-22 11:05 [Qemu-devel] [PATCH 1/7] Declare and Enable VSX Anton Blanchard
2013-10-22 11:06 ` [Qemu-devel] [PATCH 2/7] Add MSR VSX and Associated Exception Anton Blanchard
2013-10-22 15:10 ` Richard Henderson
2013-10-22 11:06 ` [Qemu-devel] [PATCH 3/7] Add VSX Instruction Decoders Anton Blanchard
2013-10-22 11:07 ` [Qemu-devel] [PATCH 4/7] Add VSR to Global Registers Anton Blanchard
2013-10-22 11:08 ` [Qemu-devel] [PATCH 5/7] Add lxvd2x Anton Blanchard
2013-10-22 11:09 ` [Qemu-devel] [PATCH 6/7] Add stxvd2x Anton Blanchard
2013-10-22 11:09 ` Anton Blanchard [this message]
2013-12-03 16:10 ` [Qemu-devel] [PATCH 1/7] Declare and Enable VSX Tom Musta
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