Hi, having a little issue here using RegenD. I'm working on the title screen for my Starflight/Mass Effect hack for the MD/Genesis, but can't find the tilemap anywhere. So far my title screen looks like this:-
As you can see, it's not perfect - but with a few changes to the tilemap, I should be able to fix it up. I found the tilemap in VRAM, but can't find it anywhere in the ROM directly. As per the VDP registers below, it is at h0x2000 in VRAM (the on-screen title is on Plane B)
As I can't find the tilemap details plainly in the ROM, I thought I could track down where it s written from using breakpoints. I've tried to set up a breakpoint in RegenD like this:-
I've set it to break whenever the byte at the beginning of the tilemap is read or written, but it never breaks. I can see the VRAM fill up at that location with the VDP debugger, so it is clearly being written to, but the emulator never breaks to show me the assembly of what's going on.
So my main question, really, is what have I done wrong setting up this breakpoint?
Any help is greatly appreciated, it's got me a little stumped!