diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2006-06-19 22:43:38 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2006-06-19 22:43:38 +0000 |
| commit | a891c7a1947995eae84345719a197b6da14f96cc (patch) | |
| tree | 5e164b59a83981748cb4a00159d563ace1475417 /target-i386/helper.c | |
| parent | b2a8e5922426a9b8080f63b757bf302797f83fcc (diff) | |
fxam fix (Julian Seward)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1997 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386/helper.c')
| -rw-r--r-- | target-i386/helper.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c index 29185ceb9..379cfd5a4 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -2950,9 +2950,14 @@ void helper_fxam_ST0(void) if (SIGND(temp)) env->fpus |= 0x200; /* C1 <-- 1 */ + /* XXX: test fptags too */ expdif = EXPD(temp); if (expdif == MAXEXPD) { +#ifdef USE_X86LDOUBLE + if (MANTD(temp) == 0x8000000000000000ULL) +#else if (MANTD(temp) == 0) +#endif env->fpus |= 0x500 /*Infinity*/; else env->fpus |= 0x100 /*NaN*/; |