File L8080.7

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/INTEL 8080 LOADER

FIELD 1

*1000


LOAD,	JMS LOADSR
	MOSTGO


LOADSR,	0
	CLA
	RTCHAR
	ROCT
	CHECK
	255
	JMP SEVRAL
	CHECK
	215
	SKP CLA
	TYDER
	CDF 0
	TAD I OCNUMI
	CDF 10
	DCA LOWLIM
	CLA CMA
	DCA LODCNT
	JMP LODLOD

SEVRAL,	CLA
	CDF 0
	TAD I OCNUMI
	CDF 10
	DCA LOWLIM
	RTCHAR
	ROCT
	CHECK
	215
	SKP CLA
	TYDER
	CDF 0
	TAD I OCNUMI
	CDF 10
	CMA
	TAD LOWLIM
	DCA LODCNT

LODLOD,	LINE
	TAD PDPCON
	6526
	CLA
	TAD LOWLIM
	JMS ADDRES
	TAD I LOWLIM
	JMS DATA
	ISZ LOWLIM
	MOSTSR
	ISZ LODCNT
	JMP LODLOD+1
	CLA
	TAD PDPCON
	6525
	JMP I LOADSR


ADDRES,	0
	6515
	CMA
	6516
	CLA
	JMP I ADDRES


DATA,	0
	AND NLOW
	6526
	CMA
	AND NLOW
	6525
	CLA CLL CML RTR
	6526
	6525
	CLA
	JMP I DATA


SWREG,	JMS SWRGSR
	MOSTSR
	JMP .-2




SWRGSR,	0
	CLA
	TAD PDPCON
	6526
	LAS
	JMS I DIGOUT
	JMS I DIGIN
	NOP
	JMS I ANYSUB
	CLA
	TAD PDPCON
	6525
	CLA
	JMP I SWRGSR



DIGOUT,	ADDRES
DIGIN,	MQSR
ANYSUB,	NULSUB
PDPCON,	5000




MQSR,	0
	CLA
	6514
	CMA
	MQL
	JMP I MQSR




NULSUB,	0
	JMP I NULSUB




OCNUMI,	431
LOWLIM,	0
LODCNT,	0
NLOW,	377



LODRAM,	TAD PDPCON
	6526
	CLA
	TAD I N625
	JMS ADDRES
	TAD I N653
	JMS DATA
	TAD PDPCON
	6525
	CIF 0
	JMP I LODBAK


N625,	625
N653,	653
LODBAK,	651




FRED,	CLA
	TAD PDPCON
	6526
	CLA MQA
	JMS ADDRES
	6514
	CMA
	CIF 0
	AND NLOW
	DCA NULSUB
	TAD PDPCON
	6525
	CLA
	TAD NULSUB
	JMP I FRDBAK


FRDBAK,	622


RAMSYM,	CLA
	6524
	SMA CLA
	JMP .-2
	6523
	6514
	AND NLOW
	TAD N2000
	DCA ADDTEM
	TAD I ADDTEM
	JMS DATA
	JMP RAMSYM



	NOP
	NOP
	NOP


ADDTEM,	0
N2000,	2000




*3000 TTYOUT, CLA /OUTPUT INTEL TO DCWR FLAG=2 6514 CLL RTR RTR MOSTSR WTSF JMP .-2 WTLS CLA CLL IAC RAL 6515 IOTWAT, CLA MOSTSR 6514 AND C17 SZA CLA JMP .-4 JMP TTYLOP TTYIN, CLA /INPUT DCWR TO INTEL FLAG=1 MOSTSR RDSF JMP .-2 RDRB CLL RTL RTL IAC 6515 JMP IOTWAT C17, 17 TTYSIM, WTLS TTYLOP, MOSTSR CLA CMA 6516 CLA 6514 AND C17 SNA JMP TTYLOP CHECK 1 JMP TTYIN CHECK 2 JMP TTYOUT TYDER $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$



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