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oziphantom
Registered: Oct 2014
Posts: 478 |
Breakpoints/Freezepoints and the 128
Does anybody know of any cart or program that provides AR5/6 level FreezePoints on the 128. Just something that automatically patches the code for you when and then enters the monitor. |
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oziphantom
Registered: Oct 2014
Posts: 478 |
the Z80 ROM is D000-E000 in the "Upper ROM" so you would need to replace one of the ROMs, some 128s have each ROM in a chip and then some have the merged into 1 bigger ROM. |
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oziphantom
Registered: Oct 2014
Posts: 478 |
The monitor entry is deep into the KERNAL reset routine and happens after any auto boot external/internal ROMS are checked. So an external function ROM would be better than the Monitor entry as it will have a lot less trashed, although at this point the KERNAL will have installed its custom lda/sta/cmp/jsr FAR routines, soft reset vector and looks like it will have intited the IO chips and installed default VECTORS. |
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