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 )
		,i LDR #01 ADD ,i STR   ( increment itr )
		,i LDR                  ( a = i )
		,word1 ,strlen JSR      ( b = string length )
		NEQ ,loop ROT JSR? POP^ ( a != b ? loop )

BRK

@strlen #0001 ADD2 LDR RTS

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