Note: This IBM PC BIOS API call is for DOS/Win16 personality only. Use Family API for portability.

Note: osFree Macro Library provides macros for most of functions

@AuxRecieveChar

Brief

Recieve char from serial port

BIOS Interrupt

INTH: H

Family API

fapi

Syntax

@AuxRecieveChar

Parameters

none

Return

AL = received character if AH bit 7 clear

AH bit 7 clear if successful

AH bit 7 set on error

AH bits 6-0 = port status:

Bit(s)	Description
7	timeout
6	transmit shift register empty
5	transmit holding register empty
4	break detected
3	framing error
2	parity error
1	overrun error
0	receive data ready