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authorFredrik Noring <noring@nocrew.org>2018-10-21 17:39:03 +0200
committerAleksandar Markovic <amarkovic@wavecomp.com>2018-10-24 15:20:31 +0200
commitbe9c42c90d162100a63111ddeb8bfe50be897873 (patch)
treec7e0b7b12ac5e1576d4bcd213cfd1aebd9c14b84
parent8d927f7cb4b3ec06d6a7cf71221fd6a48e9a8fb5 (diff)
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>
-rw-r--r--target/mips/translate.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c
index d7d7145f84..f2aeaf4b6e 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -4593,11 +4593,14 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc,
gen_load_gpr(t1, rt);
if (acc != 0) {
- check_dsp(ctx);
+ if (!(ctx->insn_flags & INSN_R5900)) {
+ check_dsp(ctx);
+ }
}
switch (opc) {
case OPC_DIV:
+ case TX79_MMI_DIV1:
{
TCGv t2 = tcg_temp_new();
TCGv t3 = tcg_temp_new();
@@ -4619,6 +4622,7 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc,
}
break;
case OPC_DIVU:
+ case TX79_MMI_DIVU1:
{
TCGv t2 = tcg_const_tl(0);
TCGv t3 = tcg_const_tl(1);
@@ -24665,6 +24669,10 @@ static void decode_tx79_mmi(CPUMIPSState *env, DisasContext *ctx)
case TX79_MMI_MULTU1:
gen_mul_txx9(ctx, opc, rd, rs, rt);
break;
+ case TX79_MMI_DIV1:
+ case TX79_MMI_DIVU1:
+ gen_muldiv(ctx, opc, 1, rs, rt);
+ break;
case TX79_MMI_MTLO1:
case TX79_MMI_MTHI1:
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_MADDU: /* TODO: TX79_MMI_MADDU */
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_MADDU1: /* TODO: TX79_MMI_MADDU1 */
case TX79_MMI_PMFHL: /* TODO: TX79_MMI_PMFHL */