To explore the brains of the Atom, the DISATOM became a handy tool. But in the end not handy enough. I found the listings of the Atoms ROMs more helpful.
But its really hard to grind through al that stuff. Especial the flags are hard to follow.
Then came the idea to make some simulator to watch the register and flags of the atoms 6502 while stepping through its program. I ended up with this.
Its not made for playing games.
In the field uProcessor there are 4 buttons and a slider. When the run button is hit, machinecode will be executed from address in ProgramCounter, with speed adjusted by slider. Bottom slow, top fast.
With reset the whole bin file acornatom64k.bin is reloaded.
The change ok button confirms changes made to registers.
See link youtube for a short demonstration.
https://youtu.be/JaazKRRN7r0
Hint, watch till end. Made a typoooo. Goodbey instead of Goodbye.
iam getting old.
AcornAtom.exe and acornatom64k.bin is added beneath.
Place both in same directory and run exe file.
If you are interested in the whole story, don't hesitate to contact me.
Greetings,
Jan
