Jack C.May 27

Figured out my next angle of attack for reverse-engineering Time Machine's ROM in the shower this morning. I need to find the code that converts ASCII characters into 7-segment and alphanumeric display segment patterns. I'm assuming I'll find a lookup table, and that references to that area will point me toward other text and score handling code.

#Ghidra #ReverseEngineering #Pinball #6800 #Motorola6800 #ShowerThoughts #TimeMachine

Show threadJack C.

*sigh* things rarely work out the way they should in my head, couldn't find the bit patterns I worked out that should correspond to the representations of digits on the seven-segment displays. I think I'm going to pivot again to implementing a simulator for time machine in PinMAME so I can shoot shots with the keyboard and see what happens in the debugger

#MAME #Debugger #Pinball #Ghidra #Disassembly #ReverseEngineering

May 29 at 3:00pmWeb