uxn/projects/examples/dev.file.usm

( hello world )

%RTN { JMP2r }

( devices )

|0100 ;Console { pad 8 char 1 byte 1 short 2 }
|0160 ;File { offset 2 append 1 pad 5 name 2 length 2 load 2 save 2 }
|01F0 .RESET .FRAME .ERROR ( vectors )
|01F8 [ 13fd 1ef3 1bf2 ] ( palette )

( program )

|0200 @RESET
	
	#11
	$loop
		,text1 ,print-label JSR2
		,scramble JSR2
		#01 SUB DUP ,$loop ROT JMP2?

BRK

@print-label ( text )
	
	$loop NOP
		( send ) DUP2 LDR =Console.char
		( incr ) #0001 ADD2
		( loop ) DUP2 LDR #00 NEQ ^$loop MUL JMP 
	POP2

RTN

@scramble
	
	,filename =File.name
	
	#00 =File.append
	#0000 =File.offset
	#0003 =File.length
	,text1 #000d ADD2 =File.save
	
	#01 =File.append
	#0003 =File.offset
	#000d =File.length
	,text1 =File.save
	
	#0000 =File.offset
	#0004 =File.length
	,text1 =File.load
	
	#0004 =File.offset
	#0008 =File.length
	,text1 #0008 ADD2 =File.load
	
	#000c =File.offset
	#0004 =File.length
	,text1 #0004 ADD2 =File.load

RTN


@text1 [ Welcome 20 to 20 UxnVM 0a00 ]
@filename [ textio.bit ]

@FRAME BRK
@ERROR BRK