[h316.git] / programs / tools / src / binal.asm

* BINAL - BINARY PUNCH AND LOAD PROGRAM (REV. 1.0)
*
*
*  
*
*  BINAL - A PAL-AP DROP-IN REPLACEMENT.
*
*
*
*  AUTHOR
*  PHILIPP HACHTMANN
*
*
*  VERSION
*  1.0 (24.04.2006) - INITIAL VERSION
*
*
*
*  STORAGE REQUIREMENT
*  ONE SEGMENT
*
*
*  FEATURES:
*  NO 4/6/6 FORMAT, DIRECT BINARY DATA
*  BLOCK CHECKSUMS
*  LOAD AND GO CAPABLE
*  SUPPORTS ONLY HIGH SPEED PAPER TAPE PUNCH
*
*
*  USAGE
*  FIRST LOAD THE OBJECT TAPE INTO ANY SECTOR 'XX000 IN MEMORY.
*  TO PUNCH A SELF LOADING TAPE DO THE FOLLOWING:
*  -PRESS MSTCLR
*  -SET P TO 'XX000
*  -IF LOAD AND GO IS DESIRED, PUT PROGRAM'S START ADDRESS INTO A
*  -PRESS START
*  -ENTER THE FIRST ADDRESS TO BE PUNCHED INTO A
*  -PRESS START
*  -ENTER THE LAST ADDRESS TO BE PUNCHED INTO A
*  -PRESS START, BINAL PUNCHES YOUR SYSTEM TAPE
*
*  TO MAKE A BINAL SLST TAPE
*  USE 'XX000 THAT AS FIRST LOCATION TO BE PUNCHED.
*  THE LAST LOCATION TO BE PUNCHED IS 'XX577, THE REST OF THE SECTOR IS
*  ALWAYS AND AUTOMATICALLY PUNCHED OUT.
*
*  LOADING SLST TAPES
*  SIMPLY MOUNT THE GENERATED TAPE ON THE HIGH SPEED PAPER TAPE READER
*  AND LOAD WITH THE STANDARD KEY-IN LOADER.
*  THE CONTENTS OF THE TAPE GO TO WHERE THEY COME FROM. THE THIRD STAGE 
*  LOADER GOES TO 'XX600. THIS LOCATION CAN BE ALTERED BY ENTERING AN 
*  ADDRESS INTO A BEFORE STARTING THE KEY-IN LOADER.
*  IT IS ALSO POSSIBLE TO ALTER THE THIRD-STAGE LOADER ADDRESS BEFORE
*  PUNCHING BY DEPOSITING ANOTHER ADDRESS INTO 'XX600.
*
*  SPECIAL MODES OF OPERATION
*  IT IS POSSIBLE TO COLLECT THE OUTPUT OF MULTIPLE RUNS OF BINAL INTO 
*  ONE SYSTEM TAPE. THIS IS DONE BY SENSE SWITCH SETTINGS:
*  SSW1 SET - DON'T PUNCH OUT SECOND AND THIRD STAGE LOADERS
*  SSW2 SET - DON'T PUNCH OUT DATA
*  SSW3 SET - DON'T PUNCH OUT END OF TAPE/GO BLOCK
*  SSW4 SET - PUNCH ONLY A GO BLOCK
*
*  TAPE FORMAT:
*  THE TAPE CONTAINS HIGE DATA BLOCKS.
*  EVERY BLOCK IS PREPENDED WITH THE BLOCK START CHARACTER
*  AND THE BLOCK TYPE BYTE.
*  THEN FOLLOWS THE BLOCK DATA IN 16BIT BIG ENDIAN FORMAT.
*
*  BLOCK TYPES
*  
*       DATA BLOCK
*       THE DATA BLOCK CONTAINS USER DATA AND A CHECKSUM.
*       LAYOUT:
*       | START ADDRESS  |
*       | DATA LENGTH    |
*       |      DATA      |
*       | BLOCK CHECKSUM |
*
*       ZERO BLOCK 
*       ZERO BLOCK IS USED TO REPRESENT ZERO CORE LOCATIONS
*	LAYOUT:
*       | START ADDRESS  |
*       | ZERO LENGTH    |
*       | BLOCK CHECKSUM |
*   
*       START LOC BLOCK
*       A BLOCK TO SET THE START LOCATION AFTER LOAD
*       LAYOUT;
*       | START ADDRESS  |
*       | CHECKSUM (HAHA)|
*
*       GO BLOCK
*       THIS BLOCK STOPS LOADING AND JUMPS TO THE START LOCATION.
*       IF NO START LOCATION HAS BEEN CODED THE LOADER WILL
*       CONTIUNE!
*     
*       STOP BLOCK
*       THIS BLOCK TELLS THE LOADER THAT IT SHALL STOP NOW.
*       LAYOUT:
*       NO BODY AT ALL, ONLY BLOCK START AND BLOCK TYPE :-)
*       
************************************************************************
*
	SUBR	BINAL,ANF
	SUBR	LSTART,BO3S	BEGINNING OF THIRD STAGE LOADER	
*
	REL		RELOCATABLE MODE
	ORG	0
*
ANF	STA	STRT	SAVE AUTO START LOCATION
	CRA
	HLT		
	STA	ALOC	FIRST LOCATION TO PUNCH
	CRA
	HLT
	STA	ELOC	LAST LOCATION TO PUNCH
*
* FIRST SOME PREPARATIONS FOR THE SECOND AND THIRD STAGE LOADERS
*	CRA
	STA	PTR2	CLEAR PTR2, SO KEY-IN LOADER WILL STOP THERE.
	STA	PAUS	TERMINATOR FOR THIRD STAGE LOADER
*
* BUT HERE WE GO
	OCP	'0002	START PUNCH (NOT NECESSARY ON MY H316)
*	
	SR1		SKIP IF SSW 1 RESET	
	JMP	NOBO	NO BOOT CODE
	JST	PLDR	PUNCH OUT LEADER
	JST	PS2	PUNCH SECOND STAGE LOADER
	JST	PS3	PUNCH THIRD STAGE LOADER
*
NOBO	SS2		SKIP IF SSW 2 SET	
	JST	PDAT	PUNCH OUT DATA
*	
	LDA	STRT	START ADDRESS
	SZE		SET?
	JST	ABLK	MAKE ADRESS-BLOCK
*	
	SR3		SKIP IF SSW3 RESET
	JMP	NOGO	NO GO/STOP BLOCK
*	
	LDA	STRT	
	SZE
	JST	GBLK	MAKE GO BLOCK
	LDA	STRT
	SNZ
	JST	SBLK	MAKE STOP BLOCK
*
NOGO	JST	PLDR	END OF TAPE HAS COME.
	HLT	
	JMP	*-1	NO ESCAPE
*
*
**********************
* PUNCH THE DESIRED DATA
PDAT	DAC	**
*
LOOP	CRA		MAIN LOOP
	LDA	ELOC
	SUB	ALOC
	AOA		ONE IS MINIMUM
	STA	AVAL	AVAILABLE NUMBER OF WORDS
	SNZ
	JMP*	PDAT	END OF DATA, WE ARE HAPPY, RETURN
*
* TRY TO MAKE A ZERO BLOCK
	LDA	ALOC
	JST	CZER	COUNT ZERO LOCATIONS - IF ANY
	CAS	ZMIN	COMPARE WITH MINIMUM FOR ZERO BLOCK
	JMP	MKZE	GO TO MAKE A ZERO BLOCK
	JMP	MKZE	GO FOR THE ZERO BLOCK AS WELL
	JMP	FILL	PREPARE CONVETIONAL BLOCK
MKZE	CAS	AVAL	BLOCK TOO BIG??
	LDA	AVAL	YES, LIMIT BLOCK SIZE
	NOP		TIGHT FIT
	JST	ZBLK	PRODUCE THE THE BLOCK
	JMP	LOOP	CONTINUE IN THE MAIN LOOP
FILL	CRA		STUFF A PACKET
	STA	BCNT	CLEAR BLOCK SIZE
*
STUF	LDA	ALOC
	ADD	BCNT	CALCULATE NEW POSITION TO LOOK AT
	JST	CFIL	DETERMINE AMOUNT OF CONTIGUOUS DATA
	ADD	BCNT	ADD ACTUAL BLOCK SIZE
	CAS	AVAL	COMPARE THAT WITH AVAILABLE DATA
	LDA	AVAL	TOO MUCH, LIMIT AND GO
	SKP		A TIGHT FIT
	JMP	FIL2	FILL MORE!
	JST	DBLK	PRODUCE BLOCK
	JMP	LOOP	RETURN TO MAIN LOOP
*
FIL2	STA	BCNT	UPDATE BLOCK SIZE
	ADD	ALOC	MAKE NEW STARTING LOCATION
	JST	CZER	COUNT FOLLOWING ZEROS
	CAS	ZMIN	COMPARE WITH MINIMUM FOR A ZERO BLOCK
	JMP	BEND	OK, THERE ARE ENOUGH ZEROS. BLOCK SHALL BE GOOD.
	JMP	BEND	
*			NO, WE CONTINUE LOOKING
	ADD	BCNT	ADD CURRENT BLOCK SIZE
	STA	BCNT	AND UPDATE IT
	JMP	STUF	STUFF MORE
*	
BEND	LDA	BCNT	
	JST	DBLK	PUNCH THE BLOCK
	JMP	LOOP	BACK TO MAIN LOOP
*
**************************
*
AVAL	DEC	0	AVAILABLE DATA SIZE
IPTR	DEC	0	IMAGINARY POINTER
BCNT	DEC	0	PACKET SIZE COUNTER
ZMIN	DEC	8	MIN AMOUNT OF ZEROS FOR A BLOCK BREAK
STRT	DEC	0	ADDRESS FOR AUTO-START
*
*
*******************
* MAKE A STOP BLOCK
SBLK	DAC	**
	LDA	BSTA	START CHARACTER
	ICA
	ADD	TSTP	BLOCK TYPE
	JST	SWRD	PUNCH THAT
	JMP*	SBLK
*
*
*******************
* MAKE A GO BLOCK
GBLK	DAC	**
	LDA	BSTA	START CHARACTER
	ICA
	ADD	TGO	BLOCK TYPE
	JST	SWRD	PUNCH THAT
	JMP*	GBLK
*
*
******************
* MAKE A START ADDRESS BLOCK
ABLK	DAC	**
	STA	CNT2	SAVE THE ADDRESS
	LDA	BSTA	START CHARACTER
	ICA
	ADD	TSAD	BLOCK TYPE
	JST	SWRD	PUNCH THAT
	LDA	CNT2
	JST	SWRD
	JST	SWRD
	JMP*	ABLK	    
*
*
*******************
* MAKE ZERO BLOCK
ZBLK	DAC	**	PRODUCE A ZERO BLOCK
	STA	CNT2	STORE SIZE OF BLOCK
	LDA	BSTA	START CHARACTER
	ICA
	ADD	TZER	BLOCK TYPE
	JST	SWRD	PUNCH THAT
	LDA	ALOC	LOAD START ADDRESS
	JST	SWRD	PUNCH START ADDRESS
	STA	CSUM	INIT CHECKSUM
	LDA	CNT2	LOAD SIZE
	JST	SWRD	PUNCH SIZE
	ADD	CSUM	ADD CHECKSUM
	JST	SWRD	PUNCH OUT CHECKSUM
	LDA	ALOC	RELOAD POINTER
	ADD	CNT2	CALCULATE NEW POINTER
	STA	ALOC	UPDATE ALOC
	JMP*	ZBLK	END
*
*
********************
* MAKE DATA BLOCK
DBLK	DAC	**
	STA	CNT2	SAVE SIZE
*
	LDA	BSTA	START CHARACTER
	ICA
	ADD	TDAT	DATA BLOCK TYPE
	JST	SWRD	PUNCH
*
	LDA	ALOC	START ADDRESS
	JST	SWRD	PUNCH IT
	STA	CSUM	INIT CHECKSUM
*
	LDA	CNT2	PACKET SIZE
	JST	SWRD	PUNCH IT
	ADD	CSUM	
	STA	CSUM	UPDATE CHECKSUM
*
	LDA	CNT2
	TCA
	STA	CNT2	NOW WE USE IT AS NEG COUNTER
*
DDLP	LDA*	ALOC	LOAD DATA
	JST	SWRD	PUNCH DATA
	ADD	CSUM	
	STA	CSUM	UPDATE CHECKSUM
	IRS	ALOC
	IRS	CNT2
	JMP	DDLP	LOOP IT
	JST	SWRD	PUNCH CHECKSUM
	JMP*	DBLK	BLOCK DONE
*
*	
*
********************
* COUNT FILLED LOCATIONS
CFIL	DAC	**
	STA	PTR	STORE ADDRESS TO POINTER
	LDA	SNZ	LOAD DISCRIMINATOR OPERATION
	STA	DISC	STORE INTO COUNT ROUTINE
	JST	COUN	GO AND COUNT IT
	JMP*	CFIL
*
********************
* COUNT ZERO LOCATIONS
CZER	DAC	**
	STA	PTR	STORE ADDRESS TO POINTER
	LDA	SZE
	STA	DISC
	JST	COUN
	JMP*	CZER
*	
COUN	DAC	**	COUNT FILLED OR EMPTY LOCATIONS
	CRA	
	STA	CNT2	INITIALIZE COUNTER
CLOP	LDA*	PTR
DISC	SZE		WILL BE DYNAMICALLY OVERWRITTEN
	JMP	ZFIN	NOW OTHER KIND OF DATA
	IRS	CNT2	NOTE DOWN THE FIND
	IRS	PTR	POINT TO NEXT LOCATION TO BE TESTED
	SKP		
	JMP	ZFIN	ADDRESS OVERFLOW MUST STOP COUNTING
	JMP 	CLOP	COUNT ON
ZFIN	LDA	CNT2
	JMP*	COUN
*	
*
***********************
*	
PS2	DAC	**	PUNCH OUT SECOND STAGE LOADER
	LDA	B2AD	LOAD START ADDRESS OF SECOND STAGE LOADER
	JST	P23	CALL PUNCH23 ROUTINE
	JMP*	PS2
*
PS3	DAC	**	PUNCH OUT SECOND STAGE LOADER
	LDA	S3SC	LOAD START CHARACTER
	OTA	2	PUNCH START CHARACTER
	JMP	*-1
	LDA	B3AD	LOAD START ADDRESS OF SECOND STAGE LOADER
	JST	P23	CALL PUNCH23 ROUTINE
	JMP*	PS3
*
P23	DAC	**	PUNCH OUT A LOADER
	STA	PTR	SAVE POINTER
L23	LDA*	PTR
	JST	SWRD	PUNCH OUT CURRENT WORD	
	SNZ	
	JMP*	P23	RETURN
	IRS	PTR	INCREMENT POINTER
	JMP	L23	LOOP AGAIN
*
*
**********************
* PUNCH SOME LEADER
PLDR	DAC	**	PUNCH LEADER
	LDA	LDRL	LOAD LEADER LENGTH
	TCA		COMPLEMENT IT
	STA	CNT2	STORE TO LEADER COUNTER
	CRA		LEADER IS ZERO
LLP	OTA	2
	JMP	*-1
	IRS	CNT2
	JMP	LLP
	JMP*	PLDR
*	
*
*********************
* PUNCH ONE WORD OF DATA
SWRD	DAC	**
	ICA	
	OTA	2
	JMP	*-1
	ICA
	OTA	2
	JMP	*-1	WAIT
	JMP*	SWRD
*	
*
B2AD	DAC	BO2S	START ADDRESS OF SECOND STAGE LOADER
B3AD	DAC	BO3S	START ADDRESS OF THIRD STAGE LOADER
*
LDRL	DEC	300	LEADER LENGTH
SZE	SZE		INSTRUCTION FOR FILL IN
SNZ	SNZ		INSTRUCTION FOR FILL IN
*
*
************************************************************************
* THIS IST THE SECOND STAGE LOADER
*
* IT IS IMPORTANT THAT THERE ARE NO ZERO WORDS IN THIS CODE BECAUSE THE
* KEY-IN LOADER WORKS ONLY UNTIL IT DETECTS A ZERO WORD.
*
BO2S	DAC	'20	START ADDRESS, ALWAYS '20
	JMP	'10	JUMP BACK INTO KEY-IN LOADER
*
*S21	OCP	'001	THIS IS THE JUMP-IN LOCATION, WILL GO TO '21
*	
	INA	'1001		READ FROM PAPER TAPE
	JMP	'17-BO2S+*-1	WAIT
	SUB 	'17-BO2S+S3SC	STAGE 3 START CHARACTER
	SZE
	JMP	'17-BO2S+*-4	EAT UP ALL JUNK
*
	INA	'1001		READ FROM PAPER TAPE
	JMP	'17-BO2S+*-1	WAIT
	ICA			OTHER CHARACTER
	INA	'001		READ FROM TAPE WITHOUT CLEARING A
	JMP	'17-BO2S+*-1	WAIT
*
	STA	'17-BO2S+CNT2	STORE START ADDRESS OF THIRD STAGE
*	LDA	'57		LOOK FOR DEPOSITED OTHER BOOT ADDRESS
*	SZE			OK, IF WE FIND SOMETHING THERE...
*	STA	'17-BO2S+CNT2	OVERWRITE DEFAULT VALUE	
	LDA	'17-BO2S+CNT2   RELOAD START ADDRESS
	STA*	'17-BO2S+CNT2	STORE THAT ADDRESS INTO ITSELF	
	IRS	'17-BO2S+CNT2	CORRECT STOLEN WORD	
	LDA	'17-BO2S+CNT2	WHERE TO LOAD NOW?
	STA	'17-BO2S+PTR2	INIT WRITE POINTER
*	
LOP	INA	'1001		READ IN CHARACTER
	JMP	'17-BO2S+*-1	WAIT
	ICA			OTHER CHARACTER
	INA	'001		READ FROM TAPE WITHOUT CLEARING A
	JMP	'17-BO2S+*-1	WAIT
	SNZ			DID WE LOAD A ZERO?
	JMP*	'17-BO2S+CNT2	JUMP INTO THIRD STAGE LOADER
	STA*	'17-BO2S+PTR2	STORE DATA
	IRS	'17-BO2S+PTR2	MOVE ON
	JMP	'17-BO2S+LOP	FETCH MORE DATA
*	
S3SC	OCT	'301	START CHARACTER TO RECOGNIZE STAGE3
PTR2	DAC	**	MEMORY POINTER
CNT2	DAC	**	LOAD ADDRESS
*
*
************************************************************************
* HERE COMES THE THIRD STAGE LOADER
*
	ORG	'600
BO3S	DAC	*	THAT IS FOR THE SECOND STAGE LOADER
*********
* COMPLETE THE PAUS ROUTINE
	LDA	PJ1	
	STA	J1
	CRA
	STA	PAUS
	STA	JH
*
* START LOADING	
	OCP	1	READER ON
SLOP	INA	'1001	CRA AND READ
	JMP	*-1
	SUB	BSTA	BLOCK START?
	SZE
	JMP	SLOP	BACK TO SEARCH LOOP
	INA	'1001	READ BLOCK TYPE
	JMP	*-1
	STA	BTYP	STORE BLOCK TYPE FOR LATER USE
	CAS	TSAD	START ADDRESS BLOCK?
	JMP	*+2
	JMP	RSAD	READ START ADDRESS BLOCK
	NOP
	CAS	TGO	GO BLOCK?
	JMP	*+2
	JMP	RGO	PROCESS GO BLOCK
	NOP
	CAS	TDAT	DATA BLOCK?
	JMP	*+2
	JMP	RBLK	READ DATA BLOCK
	NOP
	CAS	TZER	ZERO BLOCK?
	JMP	*+2	
	JMP	RBLK	READ ZERO BLOCK
	NOP
	CAS	TSTP	STOP BLOCK?
	JMP	*+2
	JMP	RSTP	PROCESS STOP BLOCK
	NOP
	LDA	EBT	ERROR BLOCK TYPE
	JST	PAUS	PAUSE
	JMP	SLOP	SEARCH FOR NEW BLOCK
*
********************
* START ADDRESS BLOCK
RSAD	JST	LWRD
	STA	RESA
	JST	LWRD
	SUB	RESA
	SZE
	JMP	CERR	CHECKSUM ERROR!
	JMP	SLOP	LOOK FOR NEW BLOCK!
*
*
RGO	JMP*	RESA
*
*********************
* READ DATA OR ZERO BLOCK
RBLK	JST	LWRD
	STA	PTR	START ADDRESS	
	STA	CSUM
	JST	LWRD
	TCA		TWO'S COMPLEMENT
	STA	LEN	GO COUNTER
	TCA		TWO'S COMPLEMENT BACK
	ADD	CSUM
	STA	CSUM
RLP	LDA 	BTYPE
	CAS	TDAT	DATA BLOCK?
	JMP	RZER	NO
	JMP	RDAT	YES
	JMP	RZER	NO, CLEAR A
RDAT	JST	LWRD	
	STA*	PTR
	ADD	CSUM	ADD TO CHECKSUM
	STA	CSUM	
EL	IRS	PTR	POINT TO NEXT LOCATION
	SKP	
	JMP	BO3S	OVERFLOW!
	IRS	LEN	INCREMENT NEG COUNTER
	JMP	RLP	READ ON
*
	JST	LWRD	NOW READ IN THE CHECKSUM
	SUB	CSUM
	SNZ
	JMP	SLOP
CERR	CRA		CHECKSUM ERROR HALT
	JST	PAUS
	JMP	SLOP	TRY A NEW BLOCK
*
RZER	CRA
	STA*	PTR	STORE ZERO
	JMP	EL	USE END OF LOOP ABOVE
*******
* STOP BLOCK
RSTP	LDA	BO3S	FOR SHOW
	JST	PAUS
	JMP*	RESA	JUMP TO RESTART LOCATION
*
*
**********************
* CONSTANTS
*
RESA	DAC	SLOP	RESTART ADDRESS
BSTA	DEC	129	BLOCK START CHARACTER
EBT	OCT	'125252		ERROR MESSAGE FOR A REG
*
* BLOCK TYPES:
TSAD	OCT	'33
TGO	OCT	'44
TZER	OCT	'55
TSTP	OCT	'66
TDAT	OCT	'11
*
*
LWRD	OCT	66
	INA	'1001	CLEAR A AND INPUT
	JMP	*-1
	ICA
	INA	'1	INPUT
	JMP	*-1	WAIT
	JMP*	LWRD
*	
	FIN		WRITE OUT LITERALS - IF ANY
*******************
* THE ATTIC OF THE THIRD STAGE LOADER
PJ1	JMP*	PAUS	LAST LOCATION THAT WILL BE LOADED FROM TAPE!
PAUS	DAC	**	WILL BE INITIALIZED TO ZERO BEFORE PUNCHING
JH	HLT		BECOMES CLEARED ON START OF LOAD
J1	DAC	**	BECOMES JMP* PAUS ON START OF LOAD
*
***** VARIABLES
CSUM	DAC	**	CHECKSUM
LEN	DAC	**	LENGTH COUNTER
BTYP	DAC	**	BLOCK TYPE
ALOC	***	**	CURRENT LOCATION TO PUNCH
ELOC	***	**	LAST LOCATION TO PUNCH
PTR	DAC	**	MEMORY POINTER
CNT	DAC	**	WHERE TO LOAD? CAN BE CHANGED.
*
************************************************************
	END		THAT'S IT, ENJOY!
Commit	Line	Data
4102e16c	1	* BINAL - BINARY PUNCH AND LOAD PROGRAM (REV. 1.0)
cf7fb3fa	2	*
cf7fb3fa	3	*
4102e16c	4	*
	5	*
	6	* BINAL - A PAL-AP DROP-IN REPLACEMENT.
	7	*
	8	*
	9	*
	10	* AUTHOR
	11	* PHILIPP HACHTMANN
	12	*
	13	*
	14	* VERSION
	15	* 1.0 (24.04.2006) - INITIAL VERSION
	16	*
	17	*
	18	*
	19	* STORAGE REQUIREMENT
	20	* ONE SEGMENT
	21	*
	22	*
	23	* FEATURES:
	24	* NO 4/6/6 FORMAT, DIRECT BINARY DATA
	25	* BLOCK CHECKSUMS
	26	* LOAD AND GO CAPABLE
	27	* SUPPORTS ONLY HIGH SPEED PAPER TAPE PUNCH
	28	*
	29	*
	30	* USAGE
	31	* FIRST LOAD THE OBJECT TAPE INTO ANY SECTOR 'XX000 IN MEMORY.
	32	* TO PUNCH A SELF LOADING TAPE DO THE FOLLOWING:
	33	* -PRESS MSTCLR
	34	* -SET P TO 'XX000
	35	* -IF LOAD AND GO IS DESIRED, PUT PROGRAM'S START ADDRESS INTO A
	36	* -PRESS START
	37	* -ENTER THE FIRST ADDRESS TO BE PUNCHED INTO A
	38	* -PRESS START
	39	* -ENTER THE LAST ADDRESS TO BE PUNCHED INTO A
	40	* -PRESS START, BINAL PUNCHES YOUR SYSTEM TAPE
	41	*
	42	* TO MAKE A BINAL SLST TAPE
	43	* USE 'XX000 THAT AS FIRST LOCATION TO BE PUNCHED.
	44	* THE LAST LOCATION TO BE PUNCHED IS 'XX577, THE REST OF THE SECTOR IS
	45	* ALWAYS AND AUTOMATICALLY PUNCHED OUT.
	46	*
	47	* LOADING SLST TAPES
	48	* SIMPLY MOUNT THE GENERATED TAPE ON THE HIGH SPEED PAPER TAPE READER
	49	* AND LOAD WITH THE STANDARD KEY-IN LOADER.
	50	* THE CONTENTS OF THE TAPE GO TO WHERE THEY COME FROM. THE THIRD STAGE
	51	* LOADER GOES TO 'XX600. THIS LOCATION CAN BE ALTERED BY ENTERING AN
	52	* ADDRESS INTO A BEFORE STARTING THE KEY-IN LOADER.
	53	* IT IS ALSO POSSIBLE TO ALTER THE THIRD-STAGE LOADER ADDRESS BEFORE
	54	* PUNCHING BY DEPOSITING ANOTHER ADDRESS INTO 'XX600.
	55	*
	56	* SPECIAL MODES OF OPERATION
	57	* IT IS POSSIBLE TO COLLECT THE OUTPUT OF MULTIPLE RUNS OF BINAL INTO
	58	* ONE SYSTEM TAPE. THIS IS DONE BY SENSE SWITCH SETTINGS:
	59	* SSW1 SET - DON'T PUNCH OUT SECOND AND THIRD STAGE LOADERS
	60	* SSW2 SET - DON'T PUNCH OUT DATA
	61	* SSW3 SET - DON'T PUNCH OUT END OF TAPE/GO BLOCK
	62	* SSW4 SET - PUNCH ONLY A GO BLOCK
cf7fb3fa	63	*
cf7fb3fa	64	* TAPE FORMAT:
4102e16c	65	* THE TAPE CONTAINS HIGE DATA BLOCKS.
cf7fb3fa	66	* EVERY BLOCK IS PREPENDED WITH THE BLOCK START CHARACTER
	67	* AND THE BLOCK TYPE BYTE.
	68	* THEN FOLLOWS THE BLOCK DATA IN 16BIT BIG ENDIAN FORMAT.
	69	*
	70	* BLOCK TYPES
	71	*
	72	* DATA BLOCK
	73	* THE DATA BLOCK CONTAINS USER DATA AND A CHECKSUM.
	74	* LAYOUT:
	75	* \| START ADDRESS \|
	76	* \| DATA LENGTH \|
	77	* \| DATA \|
	78	* \| BLOCK CHECKSUM \|
	79	*
	80	* ZERO BLOCK
	81	* ZERO BLOCK IS USED TO REPRESENT ZERO CORE LOCATIONS
	82	* LAYOUT:
	83	* \| START ADDRESS \|
	84	* \| ZERO LENGTH \|
	85	* \| BLOCK CHECKSUM \|
	86	*
	87	* START LOC BLOCK
	88	* A BLOCK TO SET THE START LOCATION AFTER LOAD
	89	* LAYOUT;
	90	* \| START ADDRESS \|
	91	* \| CHECKSUM (HAHA)\|
	92	*
	93	* GO BLOCK
	94	* THIS BLOCK STOPS LOADING AND JUMPS TO THE START LOCATION.
	95	* IF NO START LOCATION HAS BEEN CODED THE LOADER WILL
	96	* CONTIUNE!
	97	*
4e8a2859	98	* STOP BLOCK
cf7fb3fa	99	* THIS BLOCK TELLS THE LOADER THAT IT SHALL STOP NOW.
	100	* LAYOUT:
	101	* NO BODY AT ALL, ONLY BLOCK START AND BLOCK TYPE :-)
	102	*
	103	************************************************************************
	104	*
61655ba3	105	SUBR BINAL,ANF
61655ba3	106	SUBR LSTART,BO3S BEGINNING OF THIRD STAGE LOADER
cf7fb3fa	107	*
	108	REL RELOCATABLE MODE
	109	ORG 0
	110	*
61655ba3	111	ANF STA STRT SAVE AUTO START LOCATION
2dbecc75	112	CRA
cf7fb3fa	113	HLT
cf7fb3fa	114	STA ALOC FIRST LOCATION TO PUNCH
2dbecc75	115	CRA
cf7fb3fa	116	HLT
	117	STA ELOC LAST LOCATION TO PUNCH
	118	*
2dbecc75	119	* FIRST SOME PREPARATIONS FOR THE SECOND AND THIRD STAGE LOADERS
	120	* CRA
	121	STA PTR2 CLEAR PTR2, SO KEY-IN LOADER WILL STOP THERE.
	122	STA PAUS TERMINATOR FOR THIRD STAGE LOADER
	123	*
	124	* BUT HERE WE GO
cf7fb3fa	125	OCP '0002 START PUNCH (NOT NECESSARY ON MY H316)
4102e16c	126	*
	127	SR1 SKIP IF SSW 1 RESET
	128	JMP NOBO NO BOOT CODE
cf7fb3fa	129	JST PLDR PUNCH OUT LEADER
cf7fb3fa	130	JST PS2 PUNCH SECOND STAGE LOADER
cf7fb3fa	131	JST PS3 PUNCH THIRD STAGE LOADER
4102e16c	132	*
4102e16c	133	NOBO SS2 SKIP IF SSW 2 SET
d670f1ce	134	JST PDAT PUNCH OUT DATA
4102e16c	135	*
	136	LDA STRT START ADDRESS
	137	SZE SET?
	138	JST ABLK MAKE ADRESS-BLOCK
	139	*
	140	SR3 SKIP IF SSW3 RESET
	141	JMP NOGO NO GO/STOP BLOCK
	142	*
	143	LDA STRT
d670f1ce	144	SZE
4102e16c	145	JST GBLK MAKE GO BLOCK
	146	LDA STRT
	147	SNZ
d670f1ce	148	JST SBLK MAKE STOP BLOCK
4102e16c	149	*
4102e16c	150	NOGO JST PLDR END OF TAPE HAS COME.
d670f1ce	151	HLT
	152	JMP *-1 NO ESCAPE
	153	*
4102e16c	154	*
d670f1ce	155	**********************
	156	* PUNCH THE DESIRED DATA
	157	PDAT DAC **
cf7fb3fa	158	*
	159	LOOP CRA MAIN LOOP
	160	LDA ELOC
	161	SUB ALOC
4102e16c	162	AOA ONE IS MINIMUM
4102e16c	163	STA AVAL AVAILABLE NUMBER OF WORDS
cf7fb3fa	164	SNZ
d670f1ce	165	JMP* PDAT END OF DATA, WE ARE HAPPY, RETURN
cf7fb3fa	166	*
4102e16c	167	* TRY TO MAKE A ZERO BLOCK
cf7fb3fa	168	LDA ALOC
	169	JST CZER COUNT ZERO LOCATIONS - IF ANY
	170	CAS ZMIN COMPARE WITH MINIMUM FOR ZERO BLOCK
	171	JMP MKZE GO TO MAKE A ZERO BLOCK
	172	JMP MKZE GO FOR THE ZERO BLOCK AS WELL
	173	JMP FILL PREPARE CONVETIONAL BLOCK
	174	MKZE CAS AVAL BLOCK TOO BIG??
	175	LDA AVAL YES, LIMIT BLOCK SIZE
	176	NOP TIGHT FIT
	177	JST ZBLK PRODUCE THE THE BLOCK
	178	JMP LOOP CONTINUE IN THE MAIN LOOP
	179	FILL CRA STUFF A PACKET
	180	STA BCNT CLEAR BLOCK SIZE
	181	*
	182	STUF LDA ALOC
	183	ADD BCNT CALCULATE NEW POSITION TO LOOK AT
	184	JST CFIL DETERMINE AMOUNT OF CONTIGUOUS DATA
	185	ADD BCNT ADD ACTUAL BLOCK SIZE
	186	CAS AVAL COMPARE THAT WITH AVAILABLE DATA
	187	LDA AVAL TOO MUCH, LIMIT AND GO
	188	SKP A TIGHT FIT
	189	JMP FIL2 FILL MORE!
	190	JST DBLK PRODUCE BLOCK
	191	JMP LOOP RETURN TO MAIN LOOP
	192	*
	193	FIL2 STA BCNT UPDATE BLOCK SIZE
	194	ADD ALOC MAKE NEW STARTING LOCATION
	195	JST CZER COUNT FOLLOWING ZEROS
	196	CAS ZMIN COMPARE WITH MINIMUM FOR A ZERO BLOCK
	197	JMP BEND OK, THERE ARE ENOUGH ZEROS. BLOCK SHALL BE GOOD.
	198	JMP BEND
	199	* NO, WE CONTINUE LOOKING
	200	ADD BCNT ADD CURRENT BLOCK SIZE
	201	STA BCNT AND UPDATE IT
	202	JMP STUF STUFF MORE
	203	*
	204	BEND LDA BCNT
	205	JST DBLK PUNCH THE BLOCK
	206	JMP LOOP BACK TO MAIN LOOP
	207	*
d670f1ce	208	**************************
cf7fb3fa	209	*
	210	AVAL DEC 0 AVAILABLE DATA SIZE
	211	IPTR DEC 0 IMAGINARY POINTER
	212	BCNT DEC 0 PACKET SIZE COUNTER
	213	ZMIN DEC 8 MIN AMOUNT OF ZEROS FOR A BLOCK BREAK
	214	STRT DEC 0 ADDRESS FOR AUTO-START
	215	*
	216	*
	217	*******************
	218	* MAKE A STOP BLOCK
	219	SBLK DAC **
	220	LDA BSTA START CHARACTER
	221	ICA
	222	ADD TSTP BLOCK TYPE
	223	JST SWRD PUNCH THAT
	224	JMP* SBLK
	225	*
	226	*
	227	*******************
	228	* MAKE A GO BLOCK
	229	GBLK DAC **
	230	LDA BSTA START CHARACTER
	231	ICA
	232	ADD TGO BLOCK TYPE
	233	JST SWRD PUNCH THAT
	234	JMP* GBLK
	235	*
	236	*
	237	******************
	238	* MAKE A START ADDRESS BLOCK
	239	ABLK DAC **
2dbecc75	240	STA CNT2 SAVE THE ADDRESS
cf7fb3fa	241	LDA BSTA START CHARACTER
	242	ICA
	243	ADD TSAD BLOCK TYPE
	244	JST SWRD PUNCH THAT
2dbecc75	245	LDA CNT2
cf7fb3fa	246	JST SWRD
	247	JST SWRD
	248	JMP* ABLK
	249	*
	250	*
	251	*******************
	252	* MAKE ZERO BLOCK
	253	ZBLK DAC ** PRODUCE A ZERO BLOCK
2dbecc75	254	STA CNT2 STORE SIZE OF BLOCK
cf7fb3fa	255	LDA BSTA START CHARACTER
	256	ICA
	257	ADD TZER BLOCK TYPE
	258	JST SWRD PUNCH THAT
	259	LDA ALOC LOAD START ADDRESS
	260	JST SWRD PUNCH START ADDRESS
	261	STA CSUM INIT CHECKSUM
2dbecc75	262	LDA CNT2 LOAD SIZE
cf7fb3fa	263	JST SWRD PUNCH SIZE
	264	ADD CSUM ADD CHECKSUM
	265	JST SWRD PUNCH OUT CHECKSUM
	266	LDA ALOC RELOAD POINTER
2dbecc75	267	ADD CNT2 CALCULATE NEW POINTER
cf7fb3fa	268	STA ALOC UPDATE ALOC
	269	JMP* ZBLK END
	270	*
	271	*
	272	********************
	273	* MAKE DATA BLOCK
	274	DBLK DAC **
2dbecc75	275	STA CNT2 SAVE SIZE
cf7fb3fa	276	*
	277	LDA BSTA START CHARACTER
	278	ICA
	279	ADD TDAT DATA BLOCK TYPE
	280	JST SWRD PUNCH
	281	*
	282	LDA ALOC START ADDRESS
	283	JST SWRD PUNCH IT
	284	STA CSUM INIT CHECKSUM
	285	*
2dbecc75	286	LDA CNT2 PACKET SIZE
cf7fb3fa	287	JST SWRD PUNCH IT
	288	ADD CSUM
	289	STA CSUM UPDATE CHECKSUM
	290	*
2dbecc75	291	LDA CNT2
cf7fb3fa	292	TCA
2dbecc75	293	STA CNT2 NOW WE USE IT AS NEG COUNTER
cf7fb3fa	294	*
	295	DDLP LDA* ALOC LOAD DATA
	296	JST SWRD PUNCH DATA
	297	ADD CSUM
	298	STA CSUM UPDATE CHECKSUM
	299	IRS ALOC
2dbecc75	300	IRS CNT2
cf7fb3fa	301	JMP DDLP LOOP IT
	302	JST SWRD PUNCH CHECKSUM
	303	JMP* DBLK BLOCK DONE
	304	*
	305	*
	306	*
	307	********************
	308	* COUNT FILLED LOCATIONS
	309	CFIL DAC **
	310	STA PTR STORE ADDRESS TO POINTER
	311	LDA SNZ LOAD DISCRIMINATOR OPERATION
	312	STA DISC STORE INTO COUNT ROUTINE
	313	JST COUN GO AND COUNT IT
	314	JMP* CFIL
	315	*
	316	********************
	317	* COUNT ZERO LOCATIONS
	318	CZER DAC **
	319	STA PTR STORE ADDRESS TO POINTER
	320	LDA SZE
	321	STA DISC
	322	JST COUN
	323	JMP* CZER
	324	*
	325	COUN DAC ** COUNT FILLED OR EMPTY LOCATIONS
	326	CRA
2dbecc75	327	STA CNT2 INITIALIZE COUNTER
cf7fb3fa	328	CLOP LDA* PTR
	329	DISC SZE WILL BE DYNAMICALLY OVERWRITTEN
	330	JMP ZFIN NOW OTHER KIND OF DATA
2dbecc75	331	IRS CNT2 NOTE DOWN THE FIND
cf7fb3fa	332	IRS PTR POINT TO NEXT LOCATION TO BE TESTED
	333	SKP
	334	JMP ZFIN ADDRESS OVERFLOW MUST STOP COUNTING
	335	JMP CLOP COUNT ON
2dbecc75	336	ZFIN LDA CNT2
cf7fb3fa	337	JMP* COUN
	338	*
	339	*
	340	***********************
	341	*
	342	PS2 DAC ** PUNCH OUT SECOND STAGE LOADER
	343	LDA B2AD LOAD START ADDRESS OF SECOND STAGE LOADER
	344	JST P23 CALL PUNCH23 ROUTINE
	345	JMP* PS2
	346	*
	347	PS3 DAC ** PUNCH OUT SECOND STAGE LOADER
	348	LDA S3SC LOAD START CHARACTER
	349	OTA 2 PUNCH START CHARACTER
	350	JMP *-1
	351	LDA B3AD LOAD START ADDRESS OF SECOND STAGE LOADER
	352	JST P23 CALL PUNCH23 ROUTINE
	353	JMP* PS3
	354	*
	355	P23 DAC ** PUNCH OUT A LOADER
	356	STA PTR SAVE POINTER
	357	L23 LDA* PTR
4e8a2859	358	JST SWRD PUNCH OUT CURRENT WORD
cf7fb3fa	359	SNZ
cf7fb3fa	360	JMP* P23 RETURN
cf7fb3fa	361	IRS PTR INCREMENT POINTER
	362	JMP L23 LOOP AGAIN
	363	*
	364	*
	365	**********************
	366	* PUNCH SOME LEADER
	367	PLDR DAC ** PUNCH LEADER
	368	LDA LDRL LOAD LEADER LENGTH
	369	TCA COMPLEMENT IT
2dbecc75	370	STA CNT2 STORE TO LEADER COUNTER
cf7fb3fa	371	CRA LEADER IS ZERO
	372	LLP OTA 2
	373	JMP *-1
2dbecc75	374	IRS CNT2
cf7fb3fa	375	JMP LLP
	376	JMP* PLDR
	377	*
	378	*
	379	*********************
	380	* PUNCH ONE WORD OF DATA
	381	SWRD DAC **
	382	ICA
	383	OTA 2
	384	JMP *-1
	385	ICA
	386	OTA 2
	387	JMP *-1 WAIT
	388	JMP* SWRD
	389	*
	390	*
	391	B2AD DAC BO2S START ADDRESS OF SECOND STAGE LOADER
	392	B3AD DAC BO3S START ADDRESS OF THIRD STAGE LOADER
	393	*
325547c4	394	LDRL DEC 300 LEADER LENGTH
cf7fb3fa	395	SZE SZE INSTRUCTION FOR FILL IN
	396	SNZ SNZ INSTRUCTION FOR FILL IN
	397	*
	398	*
	399	************************************************************************
	400	* THIS IST THE SECOND STAGE LOADER
	401	*
2dbecc75	402	* IT IS IMPORTANT THAT THERE ARE NO ZERO WORDS IN THIS CODE BECAUSE THE
	403	* KEY-IN LOADER WORKS ONLY UNTIL IT DETECTS A ZERO WORD.
	404	*
	405	BO2S DAC '20 START ADDRESS, ALWAYS '20
cf7fb3fa	406	JMP '10 JUMP BACK INTO KEY-IN LOADER
	407	*
	408	*S21 OCP '001 THIS IS THE JUMP-IN LOCATION, WILL GO TO '21
	409	*
2dbecc75	410	INA '1001 READ FROM PAPER TAPE
2dbecc75	411	JMP '17-BO2S+*-1 WAIT
cf7fb3fa	412	SUB '17-BO2S+S3SC STAGE 3 START CHARACTER
	413	SZE
	414	JMP '17-BO2S+*-4 EAT UP ALL JUNK
	415	*
2dbecc75	416	INA '1001 READ FROM PAPER TAPE
	417	JMP '17-BO2S+*-1 WAIT
	418	ICA OTHER CHARACTER
	419	INA '001 READ FROM TAPE WITHOUT CLEARING A
	420	JMP '17-BO2S+*-1 WAIT
cf7fb3fa	421	*
2dbecc75	422	STA '17-BO2S+CNT2 STORE START ADDRESS OF THIRD STAGE
4e8a2859	423	* LDA '57 LOOK FOR DEPOSITED OTHER BOOT ADDRESS
	424	* SZE OK, IF WE FIND SOMETHING THERE...
	425	* STA '17-BO2S+CNT2 OVERWRITE DEFAULT VALUE
2dbecc75	426	LDA '17-BO2S+CNT2 RELOAD START ADDRESS
2dbecc75	427	STA* '17-BO2S+CNT2 STORE THAT ADDRESS INTO ITSELF
4e8a2859	428	IRS '17-BO2S+CNT2 CORRECT STOLEN WORD
4e8a2859	429	LDA '17-BO2S+CNT2 WHERE TO LOAD NOW?
2dbecc75	430	STA '17-BO2S+PTR2 INIT WRITE POINTER
cf7fb3fa	431	*
2dbecc75	432	LOP INA '1001 READ IN CHARACTER
	433	JMP '17-BO2S+*-1 WAIT
	434	ICA OTHER CHARACTER
	435	INA '001 READ FROM TAPE WITHOUT CLEARING A
	436	JMP '17-BO2S+*-1 WAIT
	437	SNZ DID WE LOAD A ZERO?
4e8a2859	438	JMP* '17-BO2S+CNT2 JUMP INTO THIRD STAGE LOADER
4e8a2859	439	STA* '17-BO2S+PTR2 STORE DATA
4e8a2859	440	IRS '17-BO2S+PTR2 MOVE ON
cf7fb3fa	441	JMP '17-BO2S+LOP FETCH MORE DATA
	442	*
	443	S3SC OCT '301 START CHARACTER TO RECOGNIZE STAGE3
2dbecc75	444	PTR2 DAC ** MEMORY POINTER
2dbecc75	445	CNT2 DAC ** LOAD ADDRESS
cf7fb3fa	446	*
	447	*
	448	************************************************************************
	449	* HERE COMES THE THIRD STAGE LOADER
	450	*
	451	ORG '600
	452	BO3S DAC * THAT IS FOR THE SECOND STAGE LOADER
4e8a2859	453	*********
2dbecc75	454	* COMPLETE THE PAUS ROUTINE
2dbecc75	455	LDA PJ1
4e8a2859	456	STA J1
4e8a2859	457	CRA
2dbecc75	458	STA PAUS
	459	STA JH
	460	*
	461	* START LOADING
	462	OCP 1 READER ON
cf7fb3fa	463	SLOP INA '1001 CRA AND READ
	464	JMP *-1
	465	SUB BSTA BLOCK START?
	466	SZE
	467	JMP SLOP BACK TO SEARCH LOOP
	468	INA '1001 READ BLOCK TYPE
	469	JMP *-1
	470	STA BTYP STORE BLOCK TYPE FOR LATER USE
	471	CAS TSAD START ADDRESS BLOCK?
	472	JMP *+2
	473	JMP RSAD READ START ADDRESS BLOCK
	474	NOP
	475	CAS TGO GO BLOCK?
	476	JMP *+2
	477	JMP RGO PROCESS GO BLOCK
	478	NOP
	479	CAS TDAT DATA BLOCK?
	480	JMP *+2
	481	JMP RBLK READ DATA BLOCK
	482	NOP
	483	CAS TZER ZERO BLOCK?
	484	JMP *+2
	485	JMP RBLK READ ZERO BLOCK
	486	NOP
	487	CAS TSTP STOP BLOCK?
	488	JMP *+2
	489	JMP RSTP PROCESS STOP BLOCK
	490	NOP
2dbecc75	491	LDA EBT ERROR BLOCK TYPE
4e8a2859	492	JST PAUS PAUSE
cf7fb3fa	493	JMP SLOP SEARCH FOR NEW BLOCK
	494	*
	495	********************
	496	* START ADDRESS BLOCK
	497	RSAD JST LWRD
	498	STA RESA
	499	JST LWRD
	500	SUB RESA
	501	SZE
	502	JMP CERR CHECKSUM ERROR!
	503	JMP SLOP LOOK FOR NEW BLOCK!
	504	*
	505	*
	506	RGO JMP* RESA
	507	*
	508	*********************
	509	* READ DATA OR ZERO BLOCK
	510	RBLK JST LWRD
	511	STA PTR START ADDRESS
	512	STA CSUM
	513	JST LWRD
	514	TCA TWO'S COMPLEMENT
	515	STA LEN GO COUNTER
	516	TCA TWO'S COMPLEMENT BACK
	517	ADD CSUM
	518	STA CSUM
	519	RLP LDA BTYPE
	520	CAS TDAT DATA BLOCK?
	521	JMP RZER NO
	522	JMP RDAT YES
	523	JMP RZER NO, CLEAR A
	524	RDAT JST LWRD
	525	STA* PTR
	526	ADD CSUM ADD TO CHECKSUM
	527	STA CSUM
	528	EL IRS PTR POINT TO NEXT LOCATION
	529	SKP
	530	JMP BO3S OVERFLOW!
	531	IRS LEN INCREMENT NEG COUNTER
	532	JMP RLP READ ON
	533	*
	534	JST LWRD NOW READ IN THE CHECKSUM
	535	SUB CSUM
	536	SNZ
	537	JMP SLOP
	538	CERR CRA CHECKSUM ERROR HALT
4e8a2859	539	JST PAUS
cf7fb3fa	540	JMP SLOP TRY A NEW BLOCK
	541	*
	542	RZER CRA
	543	STA* PTR STORE ZERO
	544	JMP EL USE END OF LOOP ABOVE
	545	*******
	546	* STOP BLOCK
4e8a2859	547	RSTP LDA BO3S FOR SHOW
4e8a2859	548	JST PAUS
cf7fb3fa	549	JMP* RESA JUMP TO RESTART LOCATION
cf7fb3fa	550	*
cf7fb3fa	551	*
4e8a2859	552	**********************
	553	* CONSTANTS
	554	*
	555	RESA DAC SLOP RESTART ADDRESS
cf7fb3fa	556	BSTA DEC 129 BLOCK START CHARACTER
2dbecc75	557	EBT OCT '125252 ERROR MESSAGE FOR A REG
cf7fb3fa	558	*
	559	* BLOCK TYPES:
	560	TSAD OCT '33
	561	TGO OCT '44
	562	TZER OCT '55
	563	TSTP OCT '66
	564	TDAT OCT '11
	565	*
	566	*
	567	LWRD OCT 66
	568	INA '1001 CLEAR A AND INPUT
	569	JMP *-1
	570	ICA
	571	INA '1 INPUT
	572	JMP *-1 WAIT
	573	JMP* LWRD
	574	*
	575	FIN WRITE OUT LITERALS - IF ANY
4e8a2859	576	*******************
	577	* THE ATTIC OF THE THIRD STAGE LOADER
	578	PJ1 JMP* PAUS LAST LOCATION THAT WILL BE LOADED FROM TAPE!
2dbecc75	579	PAUS DAC ** WILL BE INITIALIZED TO ZERO BEFORE PUNCHING
	580	JH HLT BECOMES CLEARED ON START OF LOAD
	581	J1 DAC ** BECOMES JMP* PAUS ON START OF LOAD
4e8a2859	582	*
4e8a2859	583	***** VARIABLES
2dbecc75	584	CSUM DAC ** CHECKSUM
	585	LEN DAC ** LENGTH COUNTER
	586	BTYP DAC ** BLOCK TYPE
	587	ALOC * CURRENT LOCATION TO PUNCH
	588	ELOC * LAST LOCATION TO PUNCH
	589	PTR DAC ** MEMORY POINTER
4e8a2859	590	CNT DAC ** WHERE TO LOAD? CAN BE CHANGED.
cf7fb3fa	591	*
cf7fb3fa	592	************************************************************
2dbecc75	593	END THAT'S IT, ENJOY!
2dbecc75	594