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AH = 64h AL = flag 00h (default) call device driver function 5 (non-dest read) before INT 21/AH=01h,08h,0Ah nonzero don't call driver function 5
Return:
Nothing (MS-DOS) CF set, AX=error code??? (DR DOS 5.0, which does not support this call)
Notes: This function is called by the DOS 3.3+ PRINT.COM. Under MS-DOS, this function does not use any of the DOS-internal stacks and may thus be called at any time, even during another DOS call
See Also: AH=01h - AH=08h - AH=0Ah - AX=5D06h
Category: DOS Kernel - Int 21h - D
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