Int 3C

FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE

Notes: The floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt. The generated code is CD 3C xy mm .... where xy is a modified ESC instruction and mm is the modR/M byte. The xy byte appears to be encoded as s s 0 1 1 x x x or s s 0 0 0 x x x where "ss" specifies the segment override: 00 -> DS: 01 -> SS: 10 -> CS: 11 -> ES:

See Also: INT 3B - INT 3D

Category: Runtime Support - Int 3Ch - F

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