Effect

Writes a value to an output port.

Syntax

OUT <PortNumber>,<Value>

Parameters

<PortNumber> is the I/O port number to write. It needs to be between 0 and 255.

<Value> is the value between 0 and 255 to write at port.

Example

Example to modify color 7 on MSX2 and higher with the following RGB values: R=4, G=3, B=5. Binary value of R is 100, of G is 011 and of B is 101, first binary value for OUT is 01000101 = 69, second binary value for OUT is 00000011 = 3.

VDP(17)=7: OUT &H9A,69: OUT &H9A,3

Related to

INP(), SOUND, VDP(), WAIT

Compatibility

MSX-BASIC 1.0 or higher