Commit a891c7a1 authored by Fabrice Bellard's avatar Fabrice Bellard
Browse files

fxam fix (Julian Seward) 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1997 c046a42c-6fe2-441c-8c8c-71466251a162
parent b2a8e592

target-i386/helper.c

+5 −0
Original line number Diff line number Diff line
@@ -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*/;