diff options
| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-04-15 21:21:33 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-04-15 21:21:33 +0000 |
| commit | 80c27194a7be757ef5a9cec978d1d8faaa4cee81 (patch) | |
| tree | d70b8fe5bf3574d586a01bf7194f95f65368b741 /target-mips/op.c | |
| parent | a85427b147f3174748a4eed13a7379a769bb05fd (diff) | |
Fix qemu SIGFPE caused by division-by-zero due to underflow.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2673 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-mips/op.c')
| -rw-r--r-- | target-mips/op.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/target-mips/op.c b/target-mips/op.c index 9e9f8eb759..2ea84b65a0 100644 --- a/target-mips/op.c +++ b/target-mips/op.c @@ -368,14 +368,22 @@ void op_mul (void) RETURN(); } +#if HOST_LONG_BITS < 64 +void op_div (void) +{ + CALL_FROM_TB0(do_div); + RETURN(); +} +#else void op_div (void) { if (T1 != 0) { - env->LO = (int32_t)((int32_t)T0 / (int32_t)T1); - env->HI = (int32_t)((int32_t)T0 % (int32_t)T1); + env->LO = (int32_t)((int64_t)(int32_t)T0 / (int32_t)T1); + env->HI = (int32_t)((int64_t)(int32_t)T0 % (int32_t)T1); } RETURN(); } +#endif void op_divu (void) { @@ -432,7 +440,6 @@ void op_dmul (void) RETURN(); } -#if TARGET_LONG_BITS > HOST_LONG_BITS /* Those might call libgcc functions. */ void op_ddiv (void) { @@ -440,21 +447,13 @@ void op_ddiv (void) RETURN(); } +#if TARGET_LONG_BITS > HOST_LONG_BITS void op_ddivu (void) { do_ddivu(); RETURN(); } #else -void op_ddiv (void) -{ - if (T1 != 0) { - env->LO = (int64_t)T0 / (int64_t)T1; - env->HI = (int64_t)T0 % (int64_t)T1; - } - RETURN(); -} - void op_ddivu (void) { if (T1 != 0) { |