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target/mips: Add a placeholder for R5900 MMI instruction class

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Add a placeholder for MMI class. This is the main palceholder for
MMI ASE.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
This commit is contained in:
Fredrik Noring 2018-10-21 17:36:23 +02:00 committed by Aleksandar Markovic
parent f08099ad7a
commit 71b8a6b3f3
1 changed files with 44 additions and 1 deletions
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45
target/mips/translate.c
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@ -24420,6 +24420,45 @@ static void decode_opc_special3_legacy(CPUMIPSState *env, DisasContext *ctx)
}
}
static void decode_tx79_mmi(CPUMIPSState *env, DisasContext *ctx)
{
uint32_t opc = MASK_TX79_MMI(ctx->opcode);
switch (opc) {
case TX79_MMI_MADD: /* TODO: TX79_MMI_MADD */
case TX79_MMI_MADDU: /* TODO: TX79_MMI_MADDU */
case TX79_MMI_PLZCW: /* TODO: TX79_MMI_PLZCW */
case TX79_MMI_CLASS_MMI0: /* TODO: TX79_MMI_CLASS_MMI0 */
case TX79_MMI_CLASS_MMI2: /* TODO: TX79_MMI_CLASS_MMI2 */
case TX79_MMI_MFHI1: /* TODO: TX79_MMI_MFHI1 */
case TX79_MMI_MTHI1: /* TODO: TX79_MMI_MTHI1 */
case TX79_MMI_MFLO1: /* TODO: TX79_MMI_MFLO1 */
case TX79_MMI_MTLO1: /* TODO: TX79_MMI_MTLO1 */
case TX79_MMI_MULT1: /* TODO: TX79_MMI_MULT1 */
case TX79_MMI_MULTU1: /* TODO: TX79_MMI_MULTU1 */
case TX79_MMI_DIV1: /* TODO: TX79_MMI_DIV1 */
case TX79_MMI_DIVU1: /* TODO: TX79_MMI_DIVU1 */
case TX79_MMI_MADD1: /* TODO: TX79_MMI_MADD1 */
case TX79_MMI_MADDU1: /* TODO: TX79_MMI_MADDU1 */
case TX79_MMI_CLASS_MMI1: /* TODO: TX79_MMI_CLASS_MMI1 */
case TX79_MMI_CLASS_MMI3: /* TODO: TX79_MMI_CLASS_MMI3 */
case TX79_MMI_PMFHL: /* TODO: TX79_MMI_PMFHL */
case TX79_MMI_PMTHL: /* TODO: TX79_MMI_PMTHL */
case TX79_MMI_PSLLH: /* TODO: TX79_MMI_PSLLH */
case TX79_MMI_PSRLH: /* TODO: TX79_MMI_PSRLH */
case TX79_MMI_PSRAH: /* TODO: TX79_MMI_PSRAH */
case TX79_MMI_PSLLW: /* TODO: TX79_MMI_PSLLW */
case TX79_MMI_PSRLW: /* TODO: TX79_MMI_PSRLW */
case TX79_MMI_PSRAW: /* TODO: TX79_MMI_PSRAW */
generate_exception_end(ctx, EXCP_RI); /* TODO: TX79_CLASS_MMI */
break;
default:
MIPS_INVAL("TX79 MMI class");
generate_exception_end(ctx, EXCP_RI);
break;
}
}
static void decode_tx79_lq(CPUMIPSState *env, DisasContext *ctx)
{
generate_exception_end(ctx, EXCP_RI); /* TODO: TX79_LQ */
@ -25769,7 +25808,11 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
decode_opc_special(env, ctx);
break;
case OPC_SPECIAL2:
decode_opc_special2_legacy(env, ctx);
if ((ctx->insn_flags & INSN_R5900) && (ctx->insn_flags & ASE_MMI)) {
decode_tx79_mmi(env, ctx);
} else {
decode_opc_special2_legacy(env, ctx);
}
break;
case OPC_SPECIAL3:
if (ctx->insn_flags & INSN_R5900) {