Int 21/AX=250Eh

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Phar Lap 386/DOS-Extender - CALL REAL-MODE PROCEDURE

AX = 250Eh
EBX = CS:IP of real-mode procedure to call
ECX = number of two-byte words to copy from protected-mode stack
to real-mode stack

Return:
CF clear if successful all segment registers unchanged all general registers contain values set by real-mode procedure all other flags set as they were left by real-mode procedure stack unchanged CF set on error EAX = error code 01h not enough real-mode stack space

Note: This function is also supported by FlashTek X-32VM; under X-32VM, the call will fail if ECX > 0000003Fh

See Also: AX=250Dh - AX=2510h - AH=E1h"OS/286" - INT 31/A

Category: DOS Extenders - Int 21h - P

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