diff options
| 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/translate.c | |
| parent | 4a043713b34af8947a4e8f40a9f4f43d7a6d2ae9 (diff) | |
| download | qemu-ecbe1de82362e73c2b1111770c4a91b675a6fca2.zip qemu-ecbe1de82362e73c2b1111770c4a91b675a6fca2.tar.gz qemu-ecbe1de82362e73c2b1111770c4a91b675a6fca2.tar.bz2 | |
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/translate.c')
| -rw-r--r-- | target-lm32/translate.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/target-lm32/translate.c b/target-lm32/translate.c index 51b4f5a..bcd52fe 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); } |