Int 2F/AX=1A43h/BX=4156h

AVATAR Serial Dispatcher - INSTALL IRQ4 HANDLER

AX = 1A43h
BX = 4156h ('AV')
ES:DI -> FAR handler for serial port using IRQ4
DS = data segment needed by handler

Return:
AX = status/return value
0000h if no more room
1A43h if ASD not installed
else handle to use when uninstalling

Notes: (see AX=1A42h)

See Also: AX=1A42h - AX=1A63h

Category: Serial I/O - Int 2Fh - A

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