TRS-80 Color Computer Commands:



These are general O/S (RSDOS) commands (not OS-9):



THE ESSENTIALS:



0 - the first floppy drive.

1 - the second floppy drive.

file.bas - BASIC program.

file.bin - Machine language program.


To load a machine language program called "file.bin":
loadm"file.bin

To execute (start) a machine language program:
exec

To load a BASIC program called "file.bas":
load"file.bas

Run the BASIC program by typing:
run

To run an autoexecuting BASIC file:
run"file.bas

List the files and directories on a disk:
dir

To change to drive 3:
drive 3

To format the disk in drive 0 :
dskini0

To list the lines of a BASIC program in memory:
list

Deleting a file named FILE.EXT:
kill"file.ext

To copy "file.ext" to drive 1
copy"file.ext" to "1:file.ext"

To rename a file:
rename"file.ext" to "myfile.ext"

Clear the screen:
cls

Copying the disk in the first floppy drive to the blank disk in the second drive:
backup 0 to 1

Load a file from tape:
CLOAD"FILENAME.EXT"

Save a fle to tape:
CSAVE"FILENAME.EXT"

Double the MHz rating of your CoCo II (overclock command):
poke 65495,0

Set the MHz rating of your CoCo II back to normal:
poke 65494,0


Getting an OS9 game running:
Insert an OS-9 disk (we'll use the game Rogue as an example), and type:
DOS

Then type
rogue -x

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File system error messages:

I/O - Input/Output error
SN - Syntax error (incorrect BASIC or disk command -- spelling error)
TM - Type mismatch (or incorrect contextual use of a disk command)
DF - Disk full
NE - Non-Existant file (the file you asked about is not on that disk)
WP - Disk is write-protected

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CoCo III Commands:

To change the video mode to its inverse:
[ALT] [RESET]

Double the MHz rating of your CoCo III (overclock command):
poke 65497,0

Set the MHz rating of your CoCo III back to normal:
poke 65496,0





INFORMATION:

CoCo II - 64K RAM
- 6809 Motorola CPU 16-bit internal ; 8-bit external architecture.
- 9-color palette. 4 colors at a time.
- max res of 256x192

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CoCo III - 128K or 512K RAM
- 68B09E Motorola CPU 16-bit Internal ; 8-bit external architecture.
- Additional registers, and faster operational speeds (more transistors).
- Max Resolution of 640x200 in 4 colors. 320x200 16 colors. Palette of 64 colors.

More powerful operating systems are OS-9 Level 1 and 2, by Microware.
(OS-9 is a pre-emptive multitasking O/S, and has a bit of a cult following).
Newer versions of OS-9 are currently used for industrial/robotics purposes.
Note: This has nothing to do with MacOS.


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WJB









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