uxn-utils/cli/base64/b64enc.tal

( uxncli b64enc.rom file.bin )

|10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
|a0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2

|0000

	@src $40
	@queue $1

|0100

@on-reset ( -> )
	;await-src .Console/vector DEO2
	BRK

@await-src ( -> )
	.Console/read DEI .src skey ?on-ready
	BRK

@on-ready ( -> )
	;src .File/name DEO2
	#0001 .File/length DEO2
	&s ( -- )
		;&b .File/read DEO2
		.File/success DEI2 #0000 EQU2 ?&eof
		[ LIT &b $1 ] b64enc !&s
	&eof
	( | pad )
	.queue LDZ #00 EQU ?&>no-pad
		#00 b64enc &>no-pad
	#0a18 DEO
	#010f DEO
	BRK

(
@|core )

@b64enc ( byte -- )
	,&buf STR
	#0800
	&l ( -- )
		[ LIT &buf $1 ] OVR #07 SWP SUB SFT #01 AND
		[ LIT &inc $1 ] INCk #06 DIVk MUL SUB ,&inc STR
		( bit id -- )
		SWP .queue LDZ ORA DUP ADD .queue STZ
		#05 NEQ ?{
			[ LIT2 00 -queue ]
				DUP2 LDZ #01 SFT ;MIME ADD2 LDA #18 DEO
				STZ }
		INC GTHk ?&l
	POP2 JMP2r

@MIME [
	"ABCDEFGHIJKLMNOP
	"QRSTUVWXYZabcdef
	"ghijklmnopqrstuv
	"wxyz0123456789+/ ]

(
@|stdlib )

@skey ( key buf -- proc )
	OVR #21 LTH ?&eval
	#00 SWP sput #00 JMP2r
	&eval POP2 #01 JMP2r

@scap ( str* -- end* )
	&w ( -- )
		INC2 & LDAk ?&w
	JMP2r

@sput ( chr str* -- )
	scap/ ROT #00 SWP2 STA2
	JMP2r