( A little program to see a rom's metadata )

|00 @System &vector $2 &pad $6 &r $2 &g $2 &b $2
|10 @Console &vector $2 &read $1 &pad $4 &type $1 &write $1 &error $1
|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
|b0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2

|0000

	@src $40

|0100

@on-reset ( -> )
	;meta #06 DEO2
	#960f .System/r DEO2
	#a70f .System/g DEO2
	#a70f .System/b DEO2
	#0150 .Screen/width DEO2
	#0050 .Screen/height DEO2
	[ LIT2 03 -Console/type ] DEI AND ?{ ;dict/usage <perr>/ }
	;await-src .Console/vector DEO2
	BRK

@meta
	00
	( name ) "Meta 0a
	( details ) "A 20 "Metadata 20 "Viewer 0a
	( author ) "By 20 "Devine 20 "Lu 20 "Linvega 0a
	( date ) "29 20 "Nov 20 "2023 $1
	03
	( skip ) 00 abcd
	( skip ) 01 ef01
	( icon ) 83 =appicon

(
@|vectors )

@await-src ( -> )
	.Console/read DEI .src skey ?{ BRK }
	;src has-metadata ?{
		;dict/empty <pstr-ln>
		;src <sclr>
		BRK }
	<load-metadata>
	;metadata/body DUP2
	( cli ) <pstr-ln>/
	( gui ) <draw-metadata>
	;src <sclr>
	BRK

(
@|core )

@has-metadata ( src* -- bool )
	.File/name DEO2
	#0006 .File/length DEO2
	;metadata/header .File/read DEO2
	;metadata/deo LDA2 #0637 EQU2 JMP2r

@<load-metadata> ( -- )
	;metadata/start LDA2 #0100 SUB2 <seek>
	( | version )
	#0001 .File/length DEO2
	;metadata/version .File/read DEO2
	( | body )
	LIT2r =metadata/body
	&s ( -- )
		STH2kr DUP2 .File/read DEO2
		INC2r LDA ?&s
	POP2r
	( | fields )
	;metadata/length DUP2 .File/read DEO2
	LDAk #03 MUL #00 SWP .File/length DEO2
	INC2 .File/read DEO2
	JMP2r

(
@|drawing )

@<draw-metadata> ( body* -- )
	( | clear )
	#0000 DUP2 .Screen/x DEO2
	.Screen/y DEO2
	[ LIT2 80 -Screen/pixel ] DEO
	( | draw )
	#004c .Screen/x DEO2
	#0012 .Screen/y DEO2
	<draw-txt>
	( | find picture )
	;metadata/length LDA #00
	&l ( -- )
		[ LIT2 09 18 ] DEO
		#00 OVR #03 MUL ;metadata/fields ADD2
		( icon ) LDAk #83 NEQ ?{ INC2k LDA2 <draw-icon> }
		( byte ) LDAk <phex>/b
		#2018 DEO
		( shorts ) INC2 LDA2 <phex>
		#0a18 DEO
		INC GTHk ?&l
	POP2 JMP2r

@<draw-icon> ( location* -- )
	#0100 SUB2 <seek>
	#0090 .File/length DEO2
	;metadata/icon DUP2 .File/read DEO2
	.Screen/addr DEO2
	[ LIT2 26 -Screen/auto ] DEO
	#001c DUP2 .Screen/x DEO2
	.Screen/y DEO2
	[ LIT2 81 -Screen/sprite ] DEOk DEOk DEO
	JMP2r

@<draw-txt> ( txt* -- end* )
	[ LIT2 01 -Screen/auto ] DEO
	.Screen/x DEI2 ,&anchor STR2
	&w ( -- )
		LDAk #20 SUB #00 SWP #30 SFT2 ;font ADD2 .Screen/addr DEO2
		[ LIT2 02 -Screen/sprite ] DEO
		LDAk #0a NEQ ?{
			[ LIT2 &anchor $2 ] .Screen/x DEO2
			.Screen/y DEI2k #000c ADD2 ROT DEO2 }
		INC2 LDAk ?&w
	POP2 JMP2r

(
@|stdlib )

@<seek> ( length* -- )
	.File/name DEI2k ROT DEO2
	#0000 INC2k .File/length DEO2
	&l ( -- )
		;&b .File/read DEO2
		INC2 GTH2k ?&l
	POP2 POP2 JMP2r
	&b $1

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

@<sclr> ( str* -- )
	#00 ROT ROT
	&w ( -- )
		STAk INC2 LDAk ?&w
	STA
	JMP2r

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

@<phex> ( short* -- )
	SWP <phex>/b
	&b ( -- )
		DUP #04 SFT <phex>/c
	&c ( -- )
		#0f AND DUP #09 GTH #27 MUL ADD [ LIT "0 ] ADD #18 DEO
		JMP2r

@<pstr-ln> ( str* -- )
	&w ( -- )
		LDAk #18 DEO
		INC2 & LDAk ?&w
	POP2 #0a18 DEO
	JMP2r

@<perr> ( str* -- )
	&w ( -- )
		LDAk #19 DEO
		INC2 & LDAk ?&w
	POP2 JMP2r

(
@|assets )

@dict &usage "usage: 20 "meta.rom 20 "game.rom 0a $1
	&empty "Metadata 20 "Missing $1

@appicon [
	0000 3f20 2020 2020 ffff ffff ffff ffff
	0000 ff18 0000 0000 ffff ffff ffff ffff
	0000 fc04 0404 0404 ffff ffff ffff ffff
	2020 2030 3020 2020 ffff ffff ffff ffff
	0000 0000 0000 0000 ffff ffff ffff ffff
	0404 040c 0c04 0404 ffff ffff ffff ffff
	2020 2020 203f 0000 ffff ffff ffff ffff
	0000 0000 18ff 0000 ffff ffff ffff ffff
	0404 0404 04fc 0000 ffff ffff ffff ffff ]

@font [
	0000 0000 0000 0000 6060 6060 6000 6000
	6666 6600 0000 0000 006c fe6c 6cfe 6c00
	183e 603c 067c 1800 0066 6c18 3066 4600
	386c 3870 decc 7600 6060 6000 0000 0000
	1c30 3030 3030 1c00 380c 0c0c 0c0c 3800
	0066 3cff 3c66 0000 0018 187e 1818 0000
	0000 0000 0030 3060 0000 007e 0000 0000
	0000 0000 0018 1800 0306 0c18 3060 c000
	3c66 6e76 6666 3c00 1838 1818 1818 7e00
	3c66 060c 1830 7e00 7e0c 180c 0666 3c00
	0c1c 3c6c 7e0c 0c00 7e60 7c06 0666 3c00
	3c60 607c 6666 3c00 7e06 0c18 3030 3000
	3c66 663c 6666 3c00 3c66 663e 060c 3800
	0018 1800 0018 1800 0018 1800 1818 3000
	0c18 3060 3018 0c00 0000 7e00 007e 0000
	3018 0c06 0c18 3000 3c66 060c 1800 1800
	3c66 6e6a 6e60 3e00 183c 6666 7e66 6600
	7c66 667c 6666 7c00 3c66 6060 6066 3c00
	786c 6666 666c 7800 7e60 607c 6060 7e00
	7e60 607c 6060 6000 3e60 606e 6666 3e00
	6666 667e 6666 6600 3c18 1818 1818 3c00
	3e06 0606 0666 3c00 666c 7870 786c 6600
	6060 6060 6060 7e00 c6ee fed6 c6c6 c600
	6676 7e7e 6e66 6600 3c66 6666 6666 3c00
	7c66 667c 6060 6000 3c66 6666 766c 3600
	7c66 667c 6c66 6600 3c66 603c 0666 3c00
	7e18 1818 1818 1800 6666 6666 6666 3e00
	6666 6666 663c 1800 c6c6 c6d6 feee c600
	6666 3c18 3c66 6600 6666 663c 1818 1800
	7e06 0c18 3060 7e00 3c30 3030 3030 3c00
	c060 3018 0c06 0300 3c0c 0c0c 0c0c 3c00
	1038 6cc6 0000 0000 0000 0000 0000 fe00
	0060 3018 0000 0000 0000 3c06 3e66 3e00
	6060 7c66 6666 7c00 0000 3c60 6060 3c00
	0606 3e66 6666 3e00 0000 3c66 7e60 3c00
	1c30 7c30 3030 3000 0000 3e66 663e 067c
	6060 7c66 6666 6600 1800 3818 1818 3c00
	1800 1818 1818 1870 6060 666c 786c 6600
	3818 1818 1818 3c00 0000 ecfe d6c6 c600
	0000 7c66 6666 6600 0000 3c66 6666 3c00
	0000 7c66 6666 7c60 0000 3e66 6666 3e06
	0000 7c66 6060 6000 0000 3e60 3c06 7c00
	0018 7e18 1818 0e00 0000 6666 6666 3e00
	0000 6666 663c 1800 0000 c6c6 d67c 6c00
	0000 663c 183c 6600 0000 6666 663e 067c
	0000 7e0c 1830 7e00 1c30 3060 3030 1c00
	1818 1818 1818 1818 380c 0c06 0c0c 3800
	0000 60f2 9e0c 0000 3c42 9985 8599 423c ]

@metadata &header $1
	&start $3
	&deo $2
	&version $1
	&body $100
	&length $1
	&fields $ff
	&icon $90