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target/mips: Support R5900 DIV1 and DIVU1 instructions 

Add support for DIV1 and DIVU1 instructions.

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 17:39:03 +02:00 committed by Aleksandar Markovic
parent 8d927f7cb4
commit be9c42c90d
1 changed files with 9 additions and 3 deletions
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12
target/mips/translate.c
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@ -4593,11 +4593,14 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc,
gen_load_gpr(t1, rt); gen_load_gpr(t1, rt);
if (acc != 0) { if (acc != 0) {
check_dsp(ctx); if (!(ctx->insn_flags & INSN_R5900)) {
check_dsp(ctx);
}
} }
switch (opc) { switch (opc) {
case OPC_DIV: case OPC_DIV:
case TX79_MMI_DIV1:
{ {
TCGv t2 = tcg_temp_new(); TCGv t2 = tcg_temp_new();
TCGv t3 = tcg_temp_new(); TCGv t3 = tcg_temp_new();
@ -4619,6 +4622,7 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc,
} }
break; break;
case OPC_DIVU: case OPC_DIVU:
case TX79_MMI_DIVU1:
{ {
TCGv t2 = tcg_const_tl(0); TCGv t2 = tcg_const_tl(0);
TCGv t3 = tcg_const_tl(1); TCGv t3 = tcg_const_tl(1);
@ -24665,6 +24669,10 @@ static void decode_tx79_mmi(CPUMIPSState *env, DisasContext *ctx)
case TX79_MMI_MULTU1: case TX79_MMI_MULTU1:
gen_mul_txx9(ctx, opc, rd, rs, rt); gen_mul_txx9(ctx, opc, rd, rs, rt);
break; break;
case TX79_MMI_DIV1:
case TX79_MMI_DIVU1:
gen_muldiv(ctx, opc, 1, rs, rt);
break;
case TX79_MMI_MTLO1: case TX79_MMI_MTLO1:
case TX79_MMI_MTHI1: case TX79_MMI_MTHI1:
gen_HILO(ctx, opc, 1, rs); gen_HILO(ctx, opc, 1, rs);
@ -24676,8 +24684,6 @@ static void decode_tx79_mmi(CPUMIPSState *env, DisasContext *ctx)
case TX79_MMI_MADD: /* TODO: TX79_MMI_MADD */ case TX79_MMI_MADD: /* TODO: TX79_MMI_MADD */
case TX79_MMI_MADDU: /* TODO: TX79_MMI_MADDU */ case TX79_MMI_MADDU: /* TODO: TX79_MMI_MADDU */
case TX79_MMI_PLZCW: /* TODO: TX79_MMI_PLZCW */ case TX79_MMI_PLZCW: /* TODO: TX79_MMI_PLZCW */
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_MADD1: /* TODO: TX79_MMI_MADD1 */
case TX79_MMI_MADDU1: /* TODO: TX79_MMI_MADDU1 */ case TX79_MMI_MADDU1: /* TODO: TX79_MMI_MADDU1 */
case TX79_MMI_PMFHL: /* TODO: TX79_MMI_PMFHL */ case TX79_MMI_PMFHL: /* TODO: TX79_MMI_PMFHL */