Showing changes from revision #1 to #2:
Added | Removed | Changed
Entry | |
---|---|
R0 | 4 |
Exit | |
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R0 | Preserved |
R1 | Character received (if C flag cleared), or |
preserved (if C flag set) i.e. no character available in buffer to read) |
The purpose of this call is to remove a character from the serial input buffer if one is present.
If removing a character leaves the input buffer with more free space than are specified by OS_Byte 203, then the transmitting device is re-enabled in the way specified by the serial port state (as set by OS_SerialOp 0).