Home Page Forums MAME MAME how to run CoCo games

There have been bugs in recent releases of MESS regards Coco emulation. One such is that if you mount any ROM even a disk ROM, you will lose all floppy disk drives as Diet Go Go Fan indicates.

The only way around this seems to be a custom compile where the default -ext is changed to fdcv11.

How do you increase the RAM? I can't find a menu that changes it.

mess --listxml >listxml.txt
to get and save the complete list
Check the coco3 machine and the ram option

Example for 8MB
mess coco3 -ramsize 8388608

Take a look for ramsize inside of coco3.ini

-ramsize 8M is friendlier

Yes
128K, 512K, 2M and 8M is easier

But maybe not everyone knows it. So he can use what he see (listxml)

Since you are using MESSUI .153b, you can set the RAM size in the gui.
Right click on the Coco emulation to be used and select Properties. Then click on Configuration. You will get a list (after clicking on the arrow) of possible RAM sizes.

Changing the RAM size has no effect. I just found out that the "CoCo 1" driver will not load tapes.

Thank you all, for trying to help me.

You must be doing something wrong. I just tested messui .135b and Color Computer(Extended BASIC 1.0) will indeed load tapes. Are you trying Color Computer or the Extended Basic when you say CoCo1?

The correct syntax, once the .cas is mounted is either
CLOAD
or
CLOADM
You don't need a name unless there are several files on the tape but you do need to know whether the game is in Basic or machine language.

Also RAM size is not an issue with a Coco1 but it should be 64K. You can use tapes with a Coco3 but you might need to "remove" the disk controller.

Has no effect for what?
The RAM size between the coco and coco3 machine is different.
It is easier to give us more informations.

coco driver/tape

1. Which coco driver tried you now exactly?
2. Which tape (program/game title) have you tried?
3. Which tape format (.cas or .wav)?

I tried CoCo parent set; with "Crazy Painter.CAS". Typing "cload" or "cloadm", a black rectangle with seemingly random letters and numbers appears, then disappears and a message "IO error" appears.

What I meant by the RAM having no effect was that changing it did not effect loading ROMs "Arkanoid" and "Malcolm Mortar" freeze at a black screen, and loading discs "pacdude2.dsk" and "Zenix.dsk" start to load, then freeze at a screen with scrambled graphics.