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.global modfl .type modfl,@function modfl: mov 16(%esp),%ecx fldt 4(%esp) fxam fnstsw %ax sahf jnp 1f jc 2f 1: fld1 fld %st(1) 1: fprem fnstsw %ax sahf jp 1b fstp %st(1) fsubr %st(0),%st(1) fxch %st(1) fstpt (%ecx) ret 2: fstpt (%ecx) mov 6(%ecx),%eax and $0x80000000,%eax mov %eax,4(%esp) flds 4(%esp) ret