uxn/examples/hello.usm

( hello world, to console )

:dev/w fff9 ( const write port )
;i 1 ( var iterator )

|0100 @RESET

	,00 ,dev/w STR ( set dev/write to console ) 

	@word1 "hello_world ( len: 0x0b )

	@loop
		IOW ( write to device#0 )
		,incr JSR ( increment itr )
		,i LDR ( a = i )
		,word1 ,strlen JSR ( b = string length )
		NEQ ,loop ROT JSR? ( a != b ? loop )

BRK

@strlen ,0001 ADD^ LDR RTS
@incr ,i LDR ,01 ADD ,i STR RTS

|c000 @FRAME BRK 
|d000 @ERROR BRK 
|FFFA .RESET .FRAME .ERROR