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| author | Michael Walle <michael@walle.cc> | 2011-04-13 00:29:33 +0200 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2011-05-03 10:48:40 +0200 |
| commit | ecbe1de82362e73c2b1111770c4a91b675a6fca2 (patch) | |
| tree | 459d943e9c7c76e0501c849acc0f7a848be8594a /target-lm32 | |
| parent | 4a043713b34af8947a4e8f40a9f4f43d7a6d2ae9 (diff) | |
| download | qemu-ecbe1de82362e73c2b1111770c4a91b675a6fca2.tar.gz qemu-ecbe1de82362e73c2b1111770c4a91b675a6fca2.tar.bz2 qemu-ecbe1de82362e73c2b1111770c4a91b675a6fca2.zip | |
lm32: fix exception handling
Global interrupt enable bit is already saved within the exception handler
helper routine. Thus remove extra code in translation routines.
Additionally, debug exceptions has always DEBA as base address.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-lm32')
| -rw-r--r-- | target-lm32/helper.c | 6 | ||||
| -rw-r--r-- | target-lm32/translate.c | 26 |
2 files changed, 1 insertions, 31 deletions
diff --git a/target-lm32/helper.c b/target-lm32/helper.c index 318e2cf6e0..4f3e7e0fcb 100644 --- a/target-lm32/helper.c +++ b/target-lm32/helper.c @@ -76,11 +76,7 @@ void do_interrupt(CPUState *env) env->regs[R_BA] = env->pc; env->ie |= (env->ie & IE_IE) ? IE_BIE : 0; env->ie &= ~IE_IE; - if (env->dc & DC_RE) { - env->pc = env->deba + (env->exception_index * 32); - } else { - env->pc = env->eba + (env->exception_index * 32); - } + env->pc = env->deba + (env->exception_index * 32); log_cpu_state_mask(CPU_LOG_INT, env, 0); break; default: diff --git a/target-lm32/translate.c b/target-lm32/translate.c index 51b4f5a814..bcd52fe73d 100644 --- a/target-lm32/translate.c +++ b/target-lm32/translate.c @@ -598,36 +598,10 @@ static void dec_scall(DisasContext *dc) t0 = tcg_temp_new(); l1 = gen_new_label(); - /* save IE.IE */ - tcg_gen_andi_tl(t0, cpu_ie, IE_IE); - - /* IE.IE = 0 */ - tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE); - if (dc->imm5 == 7) { - /* IE.EIE = IE.IE */ - tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_EIE); - tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_IE, l1); - tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_EIE); - gen_set_label(l1); - - /* gpr[ea] = PC */ - tcg_gen_movi_tl(cpu_R[R_EA], dc->pc); - tcg_temp_free(t0); - tcg_gen_movi_tl(cpu_pc, dc->pc); t_gen_raise_exception(dc, EXCP_SYSTEMCALL); } else { - /* IE.BIE = IE.IE */ - tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_BIE); - tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_IE, l1); - tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_BIE); - gen_set_label(l1); - - /* gpr[ba] = PC */ - tcg_gen_movi_tl(cpu_R[R_BA], dc->pc); - tcg_temp_free(t0); - tcg_gen_movi_tl(cpu_pc, dc->pc); t_gen_raise_exception(dc, EXCP_BREAKPOINT); } |