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AH = 77h DX = zipcode region (0-999) CH = last two digits of zipcode (0-99) BX = 16-bit BIOS keycode for a defined ZIPKEY alternate exit key
Return:
CF set on error AX destroyed CF clear if successful zipcode specification as defined by the BX keystroke is placed in keyboard buffer, as if the user had popped up ZIPKEY and exited by pressing the key specified by BX
Category: Resident Utilities - Int B3h - Z
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