diff options
| -rw-r--r-- | target/microblaze/translate.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 6c64946398..78ca265b04 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -90,7 +90,6 @@ typedef struct DisasContext { uint32_t jmp_pc; int abort_at_next_insn; - int nr_nops; struct TranslationBlock *tb; int singlestep_enabled; } DisasContext; @@ -1576,17 +1575,12 @@ static inline void decode(DisasContext *dc, uint32_t ir) dc->ir = ir; LOG_DIS("%8.8x\t", dc->ir); - if (dc->ir) - dc->nr_nops = 0; - else { + if (ir == 0) { trap_illegal(dc, dc->cpu->env.pvr.regs[2] & PVR2_OPCODE_0x0_ILL_MASK); - - LOG_DIS("nr_nops=%d\t", dc->nr_nops); - dc->nr_nops++; - if (dc->nr_nops > 4) { - cpu_abort(CPU(dc->cpu), "fetching nop sequence\n"); - } + /* Don't decode nop/zero instructions any further. */ + return; } + /* bit 2 seems to indicate insn type. */ dc->type_b = ir & (1 << 29); @@ -1633,7 +1627,6 @@ void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb) dc->singlestep_enabled = cs->singlestep_enabled; dc->cpustate_changed = 0; dc->abort_at_next_insn = 0; - dc->nr_nops = 0; if (pc_start & 3) { cpu_abort(cs, "Microblaze: unaligned PC=%x\n", pc_start); |