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target/mips: Add and integrate MXU decoding engine placeholder
author
Aleksandar Markovic
<amarkovic@wavecomp.com>
Thu, 18 Oct 2018 12:40:20 +0000
(14:40 +0200)
committer
Aleksandar Markovic
<amarkovic@wavecomp.com>
Mon, 29 Oct 2018 13:13:47 +0000
(14:13 +0100)
Provide the placeholder and add the invocation logic for MXU
decoding engine.
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
target/mips/translate.c
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diff --git
a/target/mips/translate.c
b/target/mips/translate.c
index
2335721
..
7c4bc98
100644
(file)
--- a/
target/mips/translate.c
+++ b/
target/mips/translate.c
@@
-23978,6
+23978,12
@@
static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx)
}
}
+static void decode_opc_mxu(CPUMIPSState *env, DisasContext *ctx)
+{
+ MIPS_INVAL("decode_opc_mxu");
+ generate_exception_end(ctx, EXCP_RI);
+}
+
static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx)
{
int rs, rt, rd;
@@
-26221,6
+26227,8
@@
static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
case OPC_SPECIAL2:
if ((ctx->insn_flags & INSN_R5900) && (ctx->insn_flags & ASE_MMI)) {
decode_tx79_mmi(env, ctx);
+ } else if (ctx->insn_flags & ASE_MXU) {
+ decode_opc_mxu(env, ctx);
} else {
decode_opc_special2_legacy(env, ctx);
}