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Data Systems Design, Inc.
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Digitronics Corporation
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Dual Systems Corporation
DY 4 Systems Inc.
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TOPS-20 Monitor Calls Quick Reference Guide
Company:
Digital Equipment Corporation
Part:
AV-P173A-TM
Date:
1982-12
Table of Contents
Monitor Calls Functional Organization
TOPS-20 Monitor Calls
Control Character Output Control (CCOC) Word
Communications Protocols
Device Types
Directory Protection Fields
File Protection Fields
File Descriptor Block (FDB)
Fork (Process) Handles
Floating-Point Format Control
I/O Identifiers
JFN Mode Word
Job Capability Word
Magtape Device Types
Magtape Drive Types
Magtape Hardware Data Modes
Magtape Label States
Magtape Label Types
Magtape Record Sizes
Magtape Recording Densities
Physical Card Punch (PCDP:) Status Bits
Physical Card Reader (PCDR:) Status Bits
Physical Line Printer (PLPT:) Control Characters
Physical Line Printer (PLPT:) Status Bits
Physical Magtape (MTA:) Status Bits
Software Data Modes
Software Interrupt Channels
System PIDs
System Tables
Terminal Characteristics
Terminal Interrupt Codes
Time Zones
TOPS-20 JSYS Error Codes
TOPS-20 JSYS Error Mnemonics
Pointer Formats
PDP-10 Instruction Set
MACRO-20 Pseudo-Ops
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