Trap when a key is pressed

By Shinobi

Expert (128)

Shinobi's picture

23-09-2020, 02:54

Hi ..
After posting a lot in this forum about fixing my MSX AX-200, making a PS2 keyboard for it, and thanks to Alexey, even he made a patched version of Caslink3 to be able to convert games to the weird memory layout of MSX AX-150, AX-200 and Victor HC-80.
So After converting several hundreds of games successfully, I began to convert AlAlamiah Educational ROMs, I succeeded in doing this with the help of Manel -a member and programmer in this forum-, but I have a problem is that some ROMs run and enter into title screen with music, so far so good, but when they go to choices screen, when I press any key, the machine restarts. So I want to trap this event with openMSX debugger, to see what is happening. How to do that??

I downloaded the GUI openMSX debugger, so how to do this thing..
I also tried the ordinary Caslink3 (not the patched version) and run the ROM on MSX AX-170, the same issue happened, on choices screen of the software, when you press a key, the machine restarts..

Thanks

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By Manuel

Ascended (16966)

Manuel's picture

23-09-2020, 07:44

Put a breakpoint on address 0 and then use the "step back" function when it hits Smile

By Shinobi

Expert (128)

Shinobi's picture

24-09-2020, 18:43

Well, I didn't think of that. Smile
Thank you