DIGITAL RESEARCH(r) CP/M Plus TM (CP/M Version 3) Operating ...

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2.9 Changing Floppy Disks CP/M 3 User's Guide You can change disks on the drive without sending any special signals to CP/M 3. This allows you to insert another disk at a program's request and read files from or create files on the new disk. 2.10 Protecting a Drive Under CP/M 3, drives can be marked R/O just as files can be given the R/O attribute. The default state of a drive is R/W. You can give a drive the R/O attribute by using the SET command described in Section 5. To return the drive to R/W, use the SET command or press a CTRL-C at the system prompt. End of Section 2 2-10
Section 3 Console and Printer This section describes how CP/M 3 communicates with your console and printer. It tells how to start and stop console and printer output, edit commands you enter at your console, and redirect console and printer input and output. It also explains the concept of logical devices under CP/M 3. 3.1 Controlling Console Output Sometimes CP/M 3 displays information on your screen too quickly for you to read it. Sometimes an especially long display scrolls off the top of your screen before you have a chance to study it. To ask the system to wait while you read the display, hold down the CONTROL (CTRL) key and press S. A CTRL-S keystroke causes the display to pause. When you are ready, press CTRL-Q to resume the display. If you press any key besides CTRL-Q during a display pause, CP/M 3 sounds the console bell or beeper. DIR, TYPE, and other CP/M 3 utilities support automatic paging at the console. This means that if the program's output is longer than what the screen can display at one time, the display automatically halts when the screen is filled. When this occurs, CP/M 3 prompts you to press RETURN to continue. 3.2 Controlling Printer Output You can also use a control command to echo console output to the printer. To start printer echo, press a CTRL-P. To stop, press CTRL-P again. While printer echo is in effect, any characters that appear on your screen are listed at your printer. You can use printer echo with a DIR command to make a list of files stored on a floppy disk. You can also use CTRL-P with CTRL-S and CTRL-Q to make a hard copy of part of a file. Use a TYPE command to start a display of the file at the console. When the display reaches the part you need to print, press CTRL-S to stop the display, CTRL-P to enable printer echo, and then CTRL-Q to resume the display and start pr inting. You can use another CTRL-S, CTRL-P, CTRL-Q sequence to terminate printer echo. 3-1
Page 1 and 2: DIGITAL RESEARCH(r) CP/M Plus TM (C
Page 3 and 4: Foreword Welcome to the world of mi
Page 5 and 6: Section 5 rovides detailed informat
Page 7 and 8: Table of Contents (continued) 4.4 H
Page 9 and 10: Table of Contents (continued) The S
Page 11 and 12: Table of Contents (continued) 5-4.
Page 13 and 14: CP/M 3 Users Guide 1.2 The Command
Page 15 and 16: CP/M 3 Users Guide 1.2 The Command
Page 17 and 18: 1.4 How to Copy Your CP/M 3 Disks C
Page 19 and 20: Section 2 Files, Disks, and Drives
Page 21 and 22: 2.3 How Are Files Named? CP/M 3 Use
Page 23 and 24: CP/M User's Guide Do You Have The C
Page 25 and 26: CP/M 3 User's Guide 2.6 Accessing M
Page 27: 2.7 How to Protect Your Files CP/M
Page 31 and 32: 3.3 Console Line Editing CP/M 3 Use
Page 33 and 34: 3.3 Console Line Editing CP/M 3 Use
Page 35 and 36: CP/M 3 User's Guide 3.4 Redirecting
Page 37 and 38: CP/M 3 User's Guide 3.5 Assigning L
Page 39 and 40: 4.2 Built-in Commands CP/M 3 User's
Page 41 and 42: CP/M 3 User's Guide 4.3 Transient U
Page 43 and 44: CP/M 3 User's Guide 4.4 How CP/M 3
Page 45 and 46: 4.5 Executing Multiple Commands CP/
Page 47 and 48: 4.7 Getting Help CP/M 3 User's Guid
Page 49 and 50: 5.1 Let's Get Past the Forinalities
Page 51 and 52: 5.1 Let's Get Past the Forinalities
Page 53 and 54: CP/M 3 User's Guide 5.2 How Command
Page 55 and 56: CP/M 3 User's Guide 5.2 How Command
Page 57 and 58: CP/M 3 User's Guide The COPYSYS Com
Page 59 and 60: CP/M 3 User's Guide The DATE Comman
Page 61 and 62: The DEVICE Command CP/M 3 User's Gu
Page 67 and 68: CP/M 3 User's Guide The DIR Command
Page 77 and 78: The ED Command CP/M 3 User's Guide
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The ED Command CP/M 3 User's Guide
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The ERASE Command CP/M 3 User's Gui
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The GENCOM Command CP/M 3 User's Gu
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The GENCOM Command CP/M 3 User's Gu
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The GET Command CP/M 3 User's Guide
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The GET Command CP/M 3 User's Guide
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The HELP Command CP/M 3 User's Guid
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The HELP Command CP/M 3 User's Guid
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The INITDIR Command CP/M 3 User's G
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The LIB Command CP/M 3 User's Guide
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The LINK Command CP/M 3 User's Guid
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The LINK Command CP/M 3 User's Guid
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The MAC Command CP/M 3 User's Guide
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The PATCH Command CP/M 3 User's Gui
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The PIP Command CP/M 3 User's Guide
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The PUT Command CP/M 3 User's Guide
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The PUT Command CP/M 3 User's Guide
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The RENAME Command CP/M 3 User's Gu
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The RMAC Command CP/M 3 User's Guid
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The SET Command CP/M 3 User's Guide
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The SETDEF Command CP/M 3 User's Gu
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The SETDEF Command CP/M 3 User's Gu
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The SHOW Command CP/M 3 User's Guid
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The SHOW Command CP/M 3 User's Guid
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The SID Command CP/M 3 User's Guide
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The SUBMIT Command CP/M 3 User's Gu
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The SUBMIT Command CP/M 3 User's Gu
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The TYPE Command CP/M 3 User's Guid
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The USER Command CP/M 3 User's Guid
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6.1 Introduction to ED Section 6 ED
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6.3 ED Operation CP/M 3 User's Guid
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6.4 Basic Editing Commands CP/M 3 U
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6.5 Combining ED Commands CP/M 3 Us
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6.6 Advanced ED Commands CP/M 3 Use
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6.7 ED Error Messages CP/M 3 User's
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CP/M 3 Messages CP/M 3 User's Guide
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Appendix B ASCII and Hexadecimal Co
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ASCII and Hexadecimal Conversions C
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ASCII and Hexadecimal Conversions C
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Appendix C Filetypes CP/M 3 User's
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Appendix D : CP/M 3 Control Charact
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Appendix D : CP/M 3 Control Charact
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Appendix E : User's Glossary CP/M 3
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Index B console controlling output,
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Dn (delete characters) option F (PI
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Index LIB (library) command, macro
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Index loading search repeated execu
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Index system transient utility comm
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Index
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