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authorYongbok Kim <yongbok.kim@imgtec.com>2015-06-25 00:24:22 +0100
committerLeon Alrae <leon.alrae@imgtec.com>2015-06-26 09:22:25 +0100
commite03320958305a68f2bc6a32c87d7ed48303438f9 (patch)
tree274a00007e3f6974e9f119d4dddc83f3326288c7 /target-mips/translate.c
parent65935f070aa710cf340e96ae7ee36d2c1d5c8d15 (diff)
downloadqemu-arm-e03320958305a68f2bc6a32c87d7ed48303438f9.tar.gz
target-mips: microMIPS32 R6 POOL32A{XF} instructions
Add new microMIPS32 Release 6 pool32a/pool32axf instructions. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Diffstat (limited to 'target-mips/translate.c')
-rw-r--r--target-mips/translate.c82
1 files changed, 72 insertions, 10 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c
index d0c53170c0..cfcc154e0b 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -13343,6 +13343,10 @@ static void gen_pool32axf (CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
break;
case 0x2c:
switch (minor) {
+ case BITSWAP:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_bitswap(ctx, OPC_BITSWAP, rs, rt);
+ break;
case SEB:
gen_bshfl(ctx, OPC_SEB, rs, rt);
break;
@@ -13543,7 +13547,11 @@ static void gen_pool32axf (CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
gen_helper_do_semihosting(cpu_env);
} else {
check_insn(ctx, ISA_MIPS32);
- generate_exception(ctx, EXCP_DBp);
+ if (ctx->hflags & MIPS_HFLAG_SBRI) {
+ generate_exception(ctx, EXCP_RI);
+ } else {
+ generate_exception(ctx, EXCP_DBp);
+ }
}
break;
default:
@@ -13903,6 +13911,14 @@ static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx)
do_shifti:
gen_shift_imm(ctx, mips32_op, rt, rs, rd);
break;
+ case SELEQZ:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_cond_move(ctx, OPC_SELEQZ, rd, rs, rt);
+ break;
+ case SELNEZ:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_cond_move(ctx, OPC_SELNEZ, rd, rs, rt);
+ break;
default:
goto pool32a_invalid;
}
@@ -13976,16 +13992,52 @@ static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx)
minor = (ctx->opcode >> 6) & 0xf;
switch (minor) {
/* Conditional moves */
- case MOVN:
- mips32_op = OPC_MOVN;
- goto do_cmov;
- case MOVZ:
- mips32_op = OPC_MOVZ;
- do_cmov:
- gen_cond_move(ctx, mips32_op, rd, rs, rt);
+ case MOVN: /* MUL */
+ if (ctx->insn_flags & ISA_MIPS32R6) {
+ /* MUL */
+ gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt);
+ } else {
+ /* MOVN */
+ gen_cond_move(ctx, OPC_MOVN, rd, rs, rt);
+ }
+ break;
+ case MOVZ: /* MUH */
+ if (ctx->insn_flags & ISA_MIPS32R6) {
+ /* MUH */
+ gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt);
+ } else {
+ /* MOVZ */
+ gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt);
+ }
+ break;
+ case MULU:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt);
+ break;
+ case MUHU:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt);
+ break;
+ case LWXS: /* DIV */
+ if (ctx->insn_flags & ISA_MIPS32R6) {
+ /* DIV */
+ gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt);
+ } else {
+ /* LWXS */
+ gen_ldxs(ctx, rs, rt, rd);
+ }
break;
- case LWXS:
- gen_ldxs(ctx, rs, rt, rd);
+ case MOD:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt);
+ break;
+ case R6_DIVU:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt);
+ break;
+ case MODU:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt);
break;
default:
goto pool32a_invalid;
@@ -13994,6 +14046,16 @@ static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx)
case INS:
gen_bitops(ctx, OPC_INS, rt, rs, rr, rd);
return;
+ case LSA:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_lsa(ctx, OPC_LSA, rd, rs, rt,
+ extract32(ctx->opcode, 9, 2));
+ break;
+ case ALIGN:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_align(ctx, OPC_ALIGN, rd, rs, rt,
+ extract32(ctx->opcode, 9, 2));
+ break;
case EXT:
gen_bitops(ctx, OPC_EXT, rt, rs, rr, rd);
return;