CONTENTS

Preface
INTRODUCTION		1

1130 SYSTEM FAMILIARIZATION		3
	Readying the IBM 1130 Computing System	3
	Using the 1130 with the Monitor System	8

DISK ORGANIZATION		11
System Cartridge		12
	IBM System Area	12
	User Area	14
	Working Storage Area	15
	Fixed Area	15
Non-System Cartridge		15

MONITOR PROGRAMS		17
Supervisor		17
	Resident Monitor	17
	Disk-Resident Supervisor Programs	18
	Monitor Control Records	18
	Supervisor Control Records	22
	Supervisor Core Dump Program	24
Disk Utility Program (DUP)		26
	General Flow	26
	Information Transfer and Format Conversion	26
	Altering LET/FLET	26
	DUP Control Records	26
Assembler		35
	Card Operation	35
	Keyboard/Paper Tape Operation	36
	Origins of Mainlines	36
	Assembler Control Records	36
FORTRAN Compiler		40
	//b Records Read During the Execution of a FORTRAN Program	40
	FORTRAN Control Records	40
Core Load Builder		44
	Core Load Construction	44
	Transfer Vector	46
	System Overlays	46
	LOCAL/SOCAL Flipper	46
Core Image Loader		47
	Fetching the Supervisor	47
	Fetching a Link	47

PROGRAMMING TIPS AND TECHNIQUES		49
	Using the Disk I/O Subroutines	49
	The Use of SOCALs	49
	Tips on Monitor Control	49
	Maximum Performance of High Speed Devices	50
	Tips for Assembler Language Users	51
	Writing ISS and ILS	51
	Reading a Core Map and a File Map	53
	Locating FORTRAN Allocation Addresses	54
	Initializing $$$$$ Data Files for Use With FORTRAN Unformatted I/O	54
	Use of Defined Files	54
	Duplicate Program and Data File Names	55
	Mainline Programs that Use All of Core	55

MONITOR SYSTEM LIBRARY		57
	Adding and Removing Subroutines	57
System Library Subroutines		57
	Pre-operative Errors	57
	1442 Card Subroutine Errors	58
	2501 Card Subroutine Errors	59
	Console Printer Subroutine Errors	60
	Keyboard Subroutine Functions	60
	Paper Tape Subroutines	60
System Library Mainline Programs		61
	Disk Maintenance Programs	61
	System Maintenance Program (MODIF)	64
	Paper Tape Utility (PTUTL)	67
System Library Utility Subroutines		70

SYSTEM GENERATION AND SYSTEM RELOAD		73
Card System Pre-Load		73
Initial Load (Card System)		74
System Reload (Card System)		77
Initial Load (Paper Tape System)		79
System Reload (Paper Tape System)		81

COLD START (CARD AND PAPER TAPE SYSTEM)		83

STAND-ALONE UTILITY PROGRAMS		85
	Console Printer Core Dump	85
	Printer Core Dump	85
	Disk Cartridge Initialization Program (DCIP)	85
	Paper Tape Reproducing Program	89
	Stand-Alone Paper Tape Utility Program (PTUTL)	89

APPENDIX A. MONITOR SYSTEM ERROR AND OPERATIONAL MESSAGES		91

APPENDIX B. CHARACTER CODE CHART		105

APPENDIX C. FORMATS		109

APPENDIX D. DISK STORAGE UNIT CONVERSION FACTORS...		115

APPENDIX E. DECIMAL AND HEXADECIMAL DISK ADDRESSES		117

APPENDIX F. MONITOR SYSTEM LIBRARY LISTING		119

APPENDIX G. LET/FLET		123

APPENDIX H. RESIDENT MONITOR (INCLUDING TABLE OF EQUIVALENCES)		127

APPENDIX I. SYSTEM LOCATION EQUIVALENCE TABLE (SLET)		143

APPENDIX J. MONITOR SYSTEM SAMPLE PROGRAMS		145

APPENDIX K. BASIC DIFFERENCES BETWEEN 1130 DISK MONITOR SYSTEM, VERSION 1 AND 2		151

GLOSSARY		153

INDEX		159