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target/microblaze: Move bimm to BIMM_FLAG

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It makes sense to keep BIMM with D_FLAG, as they can be written
back to iflags at the same time.  BIMM_FLAG does not need to be
added to IFLAGS_TB_MASK because it does not affect the next TB,
only the exception path out of the current TB.  Renumber IMM_FLAG,
as the value 4 holds no particular significance; pack these two
flags at the bottom of the bitfield.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-08-20 08:08:19 -07:00
parent 31f163d3da
commit 7b34f45f9f
3 changed files with 8 additions and 10 deletions
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2
target/microblaze/helper.c
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@ -166,7 +166,7 @@ void mb_cpu_do_interrupt(CPUState *cs)
/* Reexecute the branch. */
env->regs[17] -= 4;
/* was the branch immprefixed?. */
if (env->bimm) {
if (env->iflags & BIMM_FLAG) {
env->regs[17] -= 4;
log_cpu_state_mask(CPU_LOG_INT, cs, 0);
}