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| author | Leon Alrae | 2015-09-09 15:45:36 +0200 |
|---|---|---|
| committer | Leon Alrae | 2015-09-18 10:20:48 +0200 |
| commit | db77d8523909b32d798cd2c80de422b68f9e5c42 (patch) | |
| tree | f933fcb6ca3fd8afd845c08439bab1c73f4d2553 /target-mips | |
| parent | target-mips: fix corner case in TLBWR causing QEMU to hang (diff) | |
| download | qemu-db77d8523909b32d798cd2c80de422b68f9e5c42.tar.gz qemu-db77d8523909b32d798cd2c80de422b68f9e5c42.tar.xz qemu-db77d8523909b32d798cd2c80de422b68f9e5c42.zip | |
target-mips: add missing restriction in DAUI instruction
rs cannot be the zero register, Reserved Instruction exception must be
signalled for this case.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index cd0cf8b655..0883782b8c 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -19525,7 +19525,9 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx) #if defined(TARGET_MIPS64) /* OPC_DAUI */ check_mips_64(ctx); - if (rt != 0) { + if (rs == 0) { + generate_exception(ctx, EXCP_RI); + } else if (rt != 0) { TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rs); tcg_gen_addi_tl(cpu_gpr[rt], t0, imm << 16); |