Disc Files Dir, Load, Save, Keyp | Amstrad DDI-1 specification

4.10.12DISC FILES:

dir

(directory) Outputs a list of Dr. Logo file names on the default or specified disc; accepts wild-cards.

?dir

[STARTUP STARS PATTERNS] ?dir "b:

[AVERAGE TOOLS ADDRESSES] ?dir "??AR????

[STARTUP STARS]

load

Reads the input-named file from the disc into the workspace.

?Load "myfile ?Load "b:shapes

save

Writes the contents of the workspace to the input-named disc file.

?save "shapes

4.10.13KEYBOARD, JOYSTICK: buttonp

(button pressed) Outputs TRUE if the button on the specified joystick is down; numbers 0 or 1 identify the two possible paddles.

?to fire >Label "loop

>if (buttonp 0)[pr[fire 0!]] >if (buttonp 1)[pr[fire 1!]] >go "Loop

>end

The position of the joystick is tested by paddle.

keyp

Outputs TRUE if a character has been typed at the keyboard and is waiting to be read.

?to inkey

>if keyp [op rc][op "] >end

Chapter 4.19

AMSTRAD Disc Drive & Interface DDI-1 Manual

Image 77

Amstrad DDI-1 manual Disc Files Dir, Load, Save, KEYBOARD, Joystick buttonp, Keyp

Contents

Page Amstrad Disc Drive & Interface DDI-1 Amstrad Contents Contents Page Connecting the Mains Lead Foundations 1 Setting Up Connecting the DDI-1 to the Computer Computer Interface Unit Main Disc Drive Drive a Computer Write Protection Foundations 2 About Discs Open Closed When Your Disc Is Eject Button Indicator Lamp Foundations Loading Software/Games Drive a disc missing Retry, Ignore or Cancel?Run rolcave ROLCAVE. not found Syntax error Bad commandDrive a read fail Retry, Ignore or Cancel? Type mismatch Foundations Introducing Amsdos and CP/M Load filename Drive B disc missing Retry, Ignore or CancelDisc Tape.in Cpm First Steps Using The CP/M DiscStoring Data Onto Disc CLS? Saving a Program in Memory onto Disc Back to AmsdosBeware EXAMPLE.BAS CatalogLoading From Disc Copying Programs From Disc to Cassette Copying Programs From Disc to DiscCopying Programs From Cassette to Disc Copying Using Disccopy Copying Using the CP/M System Disc Copying started Reading track 0 to Copying Using CopydiscWriting track 0 to Do you want to copy another disc Y/N Aborting Checking DiscsDiscchk Chkdisc Installation Amstrad Disc Drive & Interface DDI-1 Manual Making Working Discs Backup Master Disc Basic only disc Working SYSTEM/UTILITY discTurnkey Amstrad Basic discs DISCCOPY.COM Turnkey CP/M Discs Turnkey Basic using disc suppliedTurnkey Basic onto your Working disc Creating a Turnkey CP/M System disc Ambiguous filename Confirm individual files Y/N ? Configuring a CP/M ProgramConfiguring the Output from the package Payroll Configuring the Input to the packageStarting a Turnkey CP/M Package Autostarting a Turnkey CP/M Package Introduction Amsdos Primer Construction of Filenames Disc DirectoryAmsdos filenames and filetypes Save PROG.BAS a Save Bprog .BAS Amsdos headersFilenames on two drives Wild cards Examples of Using Amsdos Commands in a programSaving variables and performing a Screen Dump BERT.BAS FRED1.BAS FRED2.BAS FRED3.BAK FRED3.BAS FINISH.BAS Closeout Neat Pre-empting a Garbage Collection Reference guide to Amsdos commandsWhile not EOF Wend Closein Summary of Amsdos external commands Summary of Basic commandsSave OPENOUT, Print #9, Write #9, List #9, Closeout CAT DIR CPMDisc DISC.IN REN ERATape TAPE.IN Copying Files File Copying proceduresAmsdos files with headers Ascii files File has a header Amstrad Reference guide to Amsdos Error Messages Drive Drive disc is write protected Drive Drive disc missingDrive Drive read fail Drive Drive write fail CP/M system tracks CP/M PrimerOperating with CP/M Logging in a disc Configuration SectorConsole control codes Switching default drives Direct Console CommandsDIR command ERA command REN command Transient commandsType command Peripheral Management Single file copying File and disc copyingWhole disc copiers and checkers Cassette files Stat System Management Do you want to update your system disc Y/N SetupStat SECRET.BAS $DIR Is this correct Y/N Amsdos Disc GenerationFormat Format D Format I Format Advanced programming BootgenMovcpm Sysgen Amstrad Disc Drive & Interface DDI-1 Manual Introduction to Logo What is Logo Getting Started Dr. Logo Repeat 4 fd 60 rt Procedures with parametersTo square Repeat 4 fd 60 rt 90 end To squareanysize side repeat 4 fd side rt 90 end Editing programs and procedures Using Variables to remember valuesCs squareanysize 100 rt 45 squareanysize To triangle Repeat 3 fd edge rt 120 end Summary of Dr. Logo primitives Operating hints Ascii Word and List ProcessingChar Count First EmptypFput List Arithmetic Operations Logical Operations ?= Logo Logo Not Variables Procedures Text Screen EditingSetsplit Show Graphic Screen CleanType Dot Window PalSetpal Wrap Turtle Graphics Setpc Seth Setpos Workspace ManagementErn Nodes Glist RecycleGprop Plist Load Disc Files DirSave KEYBOARD, Joystick buttonp ?paddle 0 Paddle?make key rc ?key Env SoundEnt Release Repeat LabelRun Stop Catch ErrorPause Throw System Properties Headers Technical information for the user Firmware Store requirements Changing Discs Amsdos messages Error MessagesBios messages Failed to load boot sector Common to ALL Formats Disc Organisation Return Parameters Jump Block Interception by AmsdosJump Block Re-Interception by the User 137 #BC9B Intercepted Firmware Calls132 #BC8C 133 #BC8F 134 #BC92 135 #BC95 #BC98 Page Appendix Glossary of Terms CP/M Dr.Logo Primitives TPA Amstrad Disc Drive & Interface DDI-1 Manual Appendix Term Limitations of Remedies Amstrad Disc Drive & Interface DDI-1 Manual Appendix Index ERA Setpos