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authorEdgar E. Iglesias <edgar.iglesias@gmail.com>2009-09-03 12:52:01 +0200
committerEdgar E. Iglesias <edgar.iglesias@gmail.com>2009-09-03 12:52:01 +0200
commit821ebb33e4e3b082b5d1d92b35fa3a9525dc43ce (patch)
tree1b810f3a6554282e9c61d0c416a0bf2eeed17d2b /target-microblaze/op_helper.c
parentmicroblaze: Correct mfs into r0. (diff)
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microblaze: Trap on divizions by zero.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-microblaze/op_helper.c')
-rw-r--r--target-microblaze/op_helper.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index f86b1c78c..134d243e6 100644
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -167,7 +167,12 @@ static inline int div_prepare(uint32_t a, uint32_t b)
{
if (b == 0) {
env->sregs[SR_MSR] |= MSR_DZ;
- /* FIXME: Raise the div by zero exception. */
+
+ if ((env->sregs[SR_MSR] & MSR_EE)
+ && !(env->pvr.regs[2] & PVR2_DIV_ZERO_EXC_MASK)) {
+ env->sregs[SR_ESR] = ESR_EC_DIVZERO;
+ helper_raise_exception(EXCP_HW_EXCP);
+ }
return 0;
}
env->sregs[SR_MSR] &= ~MSR_DZ;