;  PrintFox DECODER -> MT81
;
	ORG	00100H
PIPL:	EQU	01000H
KBE:	EQU	PIPL+01F40H
GBE:	EQU	PIPL+07D00H
PDR:	EQU	050H
PFL:	EQU	052H
;
INIT:	RST	020H
	DB	2
	DB	'Bilddiskette'
	DB	' einlegen !'
	DB	08DH
	RST	020H
	DB	1
	LD	A,0FFH
	OUT	PFL+1
	LD	A,0C7H
	OUT	PFL+1
	OUT	PFL
	LD	A,00FH
	OUT	PDR+1
	CALL	LOAD
	RST	020H
	DB	2
	DB	'Converting'
	DB	'...'
	DB	08DH
	LD	HL,PIPL
NXT:	LD	DE,SPAC
	LD	C,1
	CALL	ZROT
	EX	DE,HL
	LD	HL,SPAC
	LD	BC,8
	LDIR
	EX	DE,HL
	PUSH	HL
	LD	DE,(PUFF)
	SBC	HL,DE
	POP	HL
	JRC	NXT-#
	JR	EKO-#
ZROT:	PUSH	HL
	PUSH	DE
	PUSH	BC
	CALL	ROT
	LD	A,D
	POP	BC
	POP	DE
	POP	HL
	LD	(DE),A
	INC	DE
	INC	C
	LD	A,C
	CMP	9
	JRC	ZROT-#
	RET
ROT:	LD	B,8
NBM:	PUSH	BC
	LD	A,M
	INC	HL
BFM:	RLA
	DEC	C
	JRNZ	BFM-#
	RL	D
	POP	BC
	DJNZ	NBM-#
	RET
EKO:	LD	HL,(LZEI)
	LD	(LZE2),HL
	LD	A,5
	LD	(PMOD),A
	LD	A,H
	CMP	2
	JRNZ	BPOK-#
	RST	020H
	DB	2
	DB	'(A)ll or'
	DB	' (P)lot ?'
	DB	08DH
PFQ:	RST	020H
	DB	1
	CMP	'P'
	JRZ	PLOT-#
	CMP	'A'
	JRNZ	PFQ-#
	LD	A,4
	LD	(PMOD),A
	JR	BPOK-#
PLOT:	LD	HL,576
	LD	(LZE2),HL
BPOK:	RST	020H
	DB	2
	DB	'printing...'
	DB	08DH
	LD	DE,DINI
	CALL	IGET
	LD	HL,PIPL
	JR	START-#
NEXT:	LD	DE,(LZE2)
NE2:	LD	A,M
	CALL	OUT
	INC	HL
	DEC	DE
	LD	A,D
	OR	E
	JRNZ	NE2-#
	LD	HL,(AZEI)
	LD	DE,(LZEI)
	ADD	HL,DE
START:	LD	(AZEI),HL
	LD	A,13
	CALL	OUT
	LD	A,10
	CALL	OUT
	RST	020H
	DB	4
	CMP	3
	JRZ	PRQ-#
	PUSH	HL
	INC	HL
	INC	HL
	LD	DE,(PUFF)
	SBC	HL,DE
	POP	HL
	JRNC	PRQ-#
	LD	DE,ITAB
	CALL	IGET
	JR	NEXT-#	
PRQ:	RST	020H
	DB	2
	DB	'repeat (Y)'
	DB	' ?',08DH
	RST	020H
	DB	1
	CMP	'Y'
	JRZ	BPOK-#
	RST	038H
IGET:	LD	B,5
IG2:	LD	A,(DE)
	CALL	OUT
	INC	DE
	DJNZ	IG2-#
	RET
OUT:	PUSH	AF
WAIT:	IN	PFL
	BIT	0,A
	JRNZ	WAIT-#
	POP	AF
	OUT	PDR
	RET
;
LOAD:	CALL	DIR
	LD	A,(FANZ)
	OR	A
	RZ
	LD	HL,(02BH)
	LD	(PUFF),HL
	LD	DE,0FF85H
	CALL	KPOS
FAZK:	RST	020H
	DB	1
	CMP	3
	JRNZ	NCB-#
	LD	HL,(PUFF)
	LD	(02BH),HL
	RST	038H
NCB:	CMP	13
	JRZ	PFOU-#
	LD	DE,020H
	CMP	10
	JRZ	AZK-#
	LD	DE,0FFE0H
	CMP	11
	JRNZ	FAZK-#
AZK:	CALL	KPOS
	JR	FAZK-#
KPOS:	LD	HL,(02BH)
	ADD	HL,DE
	LD	(02BH),HL
	RET
PFOU:	LD	BC,20
	LD	DE,SPAC
	PUSH	DE
	LDIR
	EX	DE,HL
FCP:	DEC	HL
	LD	A,M
	CMP	'"'
	JRNZ	FCP-#
	LD	M,0
	LD	HL,(PUFF)
	LD	(02BH),HL
	POP	HL
	PUSH	HL
	RST	020H
	DB	2
	DB	'SEARCHING'
	DB	' FOR'
	DB	0A0H
	CALL	PNAM
	POP	HL
	LD	C,060H
	CALL	OPEN
	CALL	OTALK
	CALL	IECIN
	CMP	042H
	JRZ	PIC-#
	CMP	047H
	JRZ	PIC-#
	LD	A,B
	OR	A
	JPNZ	LERR
	RST	020H
	DB	2
	DB	'no Picture'
	DB	08DH
	XOR	A
	LD	(FANZ),A
	JR	LB2-#
PIC:	LD	HL,KBE
	LD	DE,320
	CMP	042H
	JRZ	SPIC-#
	LD	HL,GBE
	LD	DE,640
SPIC:	LD	(PUFF),HL
	LD	(LZEI),DE
	LD	HL,PIPL
	RST	020H
	DB	2
	DB	'DECODING'
	DB	08DH
	CALL	PAE
LNXT:	CALL	IECL
	JRNZ	LBRK-#
	LD	A,M
	CMP	09BH
	JRNZ	NCOD-#
	CALL	IECIN
	LD	E,A
	CALL	IECIN
	LD	D,A
	CALL	IECIN
	LD	B,A
COD:	LD	M,B
	INC	HL
	DEC	DE
	LD	A,D
	OR	E
	JRNZ	COD-#
	DEC	HL
NCOD:	INC	HL
	PUSH	HL
	LD	DE,(PUFF)
	SBC	HL,DE
	POP	HL
	JRNC	OVER-#
	LD	A,L
	OR	A
	JRNZ	LNXT-#
	CALL	GAD
	RST	020H
	DB	4
	CMP	3
	JRNZ	LNXT-#
OVER:	LD	A,040H
LBRK:	CMP	040H
	PUSH	AF
	CALL	GAD
	POP	AF
	JRZ	LB2-#
LERR:	RST	020H
	DB	2,08DH
	CALL	FSTAT
LB2:	RST	020H
	DB	2,08DH
	CALL	UTALK
	LD	C,060H
	CALL	CLOSE
	RET
PAE:	RST	020H
	DB	7
	RST	020H
	DB	2,0ADH
	RST	020H
	DB	7
	RET
PNAM:	LD	A,M
	OR	A
	JRZ	NCR-#
	RST	020H
	DB	0
	INC	HL
	JR	PNAM-#
NCR:	RST	020H
	DB	2,08DH
	RET
GAD:	RST	020H
	DB	2
	DB	8,8,8,088H
	RST	020H
	DB	7
	RET
DIR:	LD	HL,TDIR
	LD	C,060H
	XOR	A
	LD	(FANZ),A
	CALL	OPEN
	CALL	OTALK
	PUSH	BC
	LD	B,7
	LD	HL,SPAC
IGN:	CALL	IECL
	JRNZ	DNR-#
	DJNZ	IGN-#
	RST	020H
	DB	2,13
	DB	'DISK:'
	DB	0A0H
NZEI:	CALL	IECIN
	OR	A
	JRZ	EZEI-#
NZ2:	RST	020H
	DB	0
	JR	NZEI-#
EZEI:	RST	020H
	DB	2,08DH
	RST	020H
	DB	4
	LD	HL,FANZ
	OR	A
	JRNZ	DE2-#
	INC	M
	CALL	IECIN
	CALL	IECIN
	BIT	6,B
	JRNZ	DEND-#
	CALL	IECIN
	LD	L,A
	CALL	IECIN
	LD	H,A
	CALL	PDEZ
KORR:	CALL	IECIN
	CMP	' '
	JRNZ	NZ2-#
	JR	KORR-#
DNR:	CALL	FSTAT
DEND:	LD	HL,FANZ
	DEC	M
	DEC	M
DE2:	LD	L,M
	LD	H,0
	CALL	PDEZ
	RST	020H
	DB	2
	DB	'Files '
	DB	'listed.'
	DB	13,08DH
	POP	BC
	JMP	CLOSE
TDIR:	DB	'$',0
FSTAT:	PUSH	AF
	PUSH	BC
	LD	C,06FH
	CALL	OTALK
NEZ:	CALL	IECIN
	RST	020H
	DB	0
	CMP	13
	JRNZ	NEZ-#
	CALL	UTALK
	POP	BC
	POP	AF
	RET
PDEZ:	PUSH	HL
	PUSH	DE
	PUSH	BC
	PUSH	AF
	LD	D,0
	LD	BC,100
	CALL	ZST
	LD	C,10
	CALL	ZST
	LD	C,1
	CALL	ZST
	RST	020H
	DB	2,0A0H
	POP	AF
	POP	BC
	POP	DE
	POP	HL
	RET
ZST:	XOR	A
NSC:	INC	A
	SBC	HL,BC
	JRNC	NSC-#
	ADD	HL,BC
	ADD	02FH
	CMP	'0'
	JRZ	PSP-#
	LD	D,1
	JR	ZGET-#
PSP:	DEC	C
	JRZ	ZGET-#
	LD	E,A
	LD	A,D
	OR	A
	LD	A,E
	JRNZ	ZGET-#
	LD	A,' '
ZGET:	RST	020H
	DB	0
	RET
ERRM:	PUSH	AF
	LD	A,B
	CMP	040H
	JRZ	NMSG-#
	OR	A
	CANZ	MESG
NMSG:	POP	AF
	RET
MESG:	LD	A,B
	CMP	040H
	JRZ	EDAT-#
	CMP	080H
	JRZ	DNP-#
	DEC	A
	JRZ	OERR-#
	DEC	A
	JRZ	IERR-#
OKM:	RST	020H
	DB	2
	DB	13
	DB	'OK.'
	DB	08DH
	RET
EDAT:	RST	020H
	DB	2
	DB	13
	DB	'End of Datas'
	DB	08DH
	RET
OERR:	RST	020H
	DB	2
	DB	13
	DB	'Error: OUTPUT'
	DB	08DH
	RST	038H
IERR:	RST	020H
	DB	2
	DB	13
	DB	'Error: INPUT'
	DB	08DH
	RST	038H
DNP:	RST	020H
	DB	2
	DB	13
	DB	'Device not'
	DB	' present'
	DB	08DH
	RST	038H
TALK:	LD	B,040H
	JR	OTL-#
LIST:	LD	B,020H
OTL:	LD	A,(DIV)
	AND	00FH
	OR	B
AATN:	PUSH	AF
	IN	PFL
	RES	5,A
	OUT	PFL
	SET	3,A
	OUT	PFL
	POP	AF
AT2:	PUSH	AF
	IN	PFL
	SET	4,A
	OUT	PFL
	RES	5,A
	OUT	PFL
	LD	B,239
	LD	C,0
WM1:	DJNZ	WM1-#
	POP	AF
IECO:	LD	B,C
	LD	C,A
	IN	PFL
	RES	5,A
	OUT	PFL
	IN	PFL
	BIT	7,A
	JRNZ	DNPS-#
	RES	4,A
	OUT	PFL
	BIT	6,B
	JRZ	WLB-#
WG1:	IN	PFL
	BIT	7,A
	JRZ	WG1-#
WG2:	IN	PFL
	BIT	7,A
	JRNZ	WG2-#
WLB:	IN	PFL
	BIT	7,A
	JRZ	WLB-#
	SET	4,A
	OUT	PFL
	LD	B,8
DONX:	IN	PFL
	BIT	7,A
	JRZ	TOMS-#
	BIT	0,C
	JRNZ	DOH-#
DOL:	SET	5,A
	JR	DOO-#
DOH:	JRZ	DOH-#
	RES	5,A
DOO:	PUSH	BC
	LD	B,2
TKO2:	DJNZ	TKO2-#
	LD	A,A
	OUT	PFL
	RES	4,A
	OUT	PFL
	POP	BC
	RRC	C
	RES	5,A
	SET	4,A
	OUT	PFL
	DJNZ	DONX-#
	LD	B,59
FO3:	IN	PFL
	BIT	7,A
	JRZ	EOS-#
	DJNZ	FO3-#
TOMS:	LD	B,1
	JR	ULS2-#
EOS:	LD	B,0
	RET
DNPS:	LD	B,080H
	JR	ULS2-#
SEKL:	CALL	AT2
	IN	PFL
	RES	3,A
	OUT	PFL
	RET
SEKT:	CALL	AT2
	IN	PFL
	SET	5,A
	OUT	PFL
	RES	3,A
	OUT	PFL
	RES	4,A
	OUT	PFL
WCL:	IN	PFL
	BIT	6,A
	JRNZ	WCL-#
	RET
UTALK:	IN	PFL
	SET	4,A
	OUT	PFL
	SET	3,A
	OUT	PFL
	LD	A,05FH
	JR	UTLS-#
ULIST:	LD	A,03FH
UTLS:	CALL	AATN
ULS2:	IN	PFL
	RES	3,A
	OUT	PFL
ULS3:	EX	(SP),HL
	EX	(SP),HL
	BIT	2,M
	IN	PFL
	RES	4,A
	OUT	PFL
	RES	5,A
	OUT	PFL
	RET
IECIN:	IN	PFL
	RES	4,A
	OUT	PFL
FI0:	IN	PFL
	BIT	6,A
	JRZ	FI0-#
	LD	C,0
EOI:	LD	B,50
	RES	5,A
	OUT	PFL
FI1:	IN	PFL
	BIT	6,A
	JRZ	DISC-#
	DJNZ	FI1-#
	LD	B,2
	LD	A,C
	OR	A
	RNZ
	IN	PFL
	SET	5,A
	OUT	PFL
	RES	4,A
	OUT	PFL
	LD	C,040H
	JR	EOI-#
DISC:	LD	A,C
	PUSH	AF
	LD	B,8
DINX:	IN	PFL
	BIT	6,A
	JRZ	DINX-#
	SCF
	BIT	7,A
	JRNZ	DIH-#
	CCF
DIH:	RR	C
WI1:	IN	PFL
	BIT	6,A
	JRNZ	WI1-#
	DJNZ	DINX-#
	SET	5,A
	OUT	PFL
	POP	AF
	PUSH	AF
	CMP	040H
	CAZ	ULS3
	POP	AF
	LD	B,A
	LD	A,C
	RET
IECL:	PUSH	BC
	CALL	IECIN
	LD	M,A
	LD	A,B
	POP	BC
	OR	A
	RET
OTALK:	PUSH	AF
	PUSH	BC
	CALL	TALK
	CALL	ERRM
	POP	BC
	PUSH	BC
	LD	A,C
	CALL	SEKT
	CALL	ERRM
	POP	BC
	POP	AF
	RET
OLIST:	PUSH	AF
	PUSH	BC
	CALL	LIST
	CALL	ERRM
	POP	BC
	PUSH	BC
	LD	A,C
	CALL	SEKL
	CALL	ERRM
	POP	BC
	POP	AF
	RET
CLOSE:	PUSH	AF
	PUSH	BC
	LD	A,C
	AND	0EFH
	OR	0E0H
	LD	C,A
	CALL	OLIST
	CALL	ULIST
	CALL	ERRM
	POP	BC
	POP	AF
	RET
OPEN:	PUSH	AF
	PUSH	BC
	LD	A,C
	OR	0F0H
	LD	C,A
	CALL	OLIST
NZFN:	LD	A,M
	OR	A
	JRZ	FNSE-#
	PUSH	BC
	CALL	IECO
	INC	HL
	POP	BC
	JR	NZFN-#
FNSE:	CALL	ULIST
	CALL	ERRM
	POP	BC
	POP	AF
	RET
DINI:	DB	27,'3',24
	DB	27,'O'
ITAB:	DB	27,'*'
PMOD:	DB	5
LZE2:	DA	0
LZEI:	DA	0
AZEI:	DA	0
DIV:	DB	8
FANZ:	DB	0
PUFF:	DA	0
SPAC:	DB	' '
	END
;
	END