Improve the debugger's ability to write to the machine#382
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Improve the debugger's ability to write to the machine#382stople wants to merge 1 commit intoX16Community:masterfrom
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The debugger supports writing to the machine using the "FILL_MEMORY" command: "f addr value <repeats> <increment rate>" (It uses the x16 bank specified using "d bank:address") The existing implementation did only support writing to RAM. This modification allows the debugger to also write to IO peripherals and cartridge memory, as well as modify ROM.
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The debugger supports writing to the machine using the "FILL_MEMORY" command:
f addr value [repeats] [increment rate](It uses the x16 bank specified using
m bank:address)The existing implementation did only support writing to RAM.
This modification allows the debugger to also write to IO peripherals and cartridge memory, as well as modify ROM.
IO modification can be tested by activating the mouse cursor ("MOUSE 1"), then deactivate/activate the sprite enable bit in DC_VIDEO. The new state is immediately visible in the debugger, and, when running the system again, the next frames will be according to the new register state.
ROM modification can be tested by e.g writing "A" (41) to the bytes at 00:C000. The modification is immediately visible in the debugger. When typing "HELP" afterwards, the manipulated git sha is visible.