AFAIK there are no gaps in CD address range, it's mirrored all over the place as upper address lines are simply not connected to expansion port..Chilly Willy wrote:Oh, I see. Gaps in the CD address range may also be the best way to handle it.
Search found 193 matches
- Wed Jun 25, 2014 11:32 am
- Forum: UMDK
- Topic: USB MegaDrive DevKit
- Replies: 28
- Views: 32138
- Mon Apr 07, 2014 12:17 pm
- Forum: Cartridge
- Topic: How does the cartridge slot get mapped to 0x400000?
- Replies: 3
- Views: 10130
- Mon Dec 30, 2013 12:01 pm
- Forum: Mega/SegaCD
- Topic: Testing boot from CARTRIDGE SLOT at 0x400000
- Replies: 14
- Views: 22976
- Sun Sep 01, 2013 9:03 pm
- Forum: Mega/SegaCD
- Topic: Problems with running a .bin with MESS
- Replies: 7
- Views: 15781
- Thu Aug 29, 2013 10:09 pm
- Forum: Cartridge
- Topic: Fun with reset signals
- Replies: 14
- Views: 20714
- Thu Aug 29, 2013 12:42 pm
- Forum: Tools
- Topic: Profiling and debugging tools?
- Replies: 12
- Views: 9561
- Thu Aug 29, 2013 12:17 am
- Forum: Cartridge
- Topic: Fun with reset signals
- Replies: 14
- Views: 20714
- Wed Aug 28, 2013 5:38 pm
- Forum: Tools
- Topic: Profiling and debugging tools?
- Replies: 12
- Views: 9561
I don't think I'll release this one as-is. There are too many hacked up copies of Gens floating around, and too many other hacks in my build. However, I'd be very happy to port GDB support into another emulator should there be an opening of source... Feature like that would certainly be welcome in ...
- Mon Aug 26, 2013 2:46 pm
- Forum: Mega/SegaCD
- Topic: Manufacturing an error [CD 32X]
- Replies: 3
- Views: 11312
- Fri Aug 16, 2013 4:44 pm
- Forum: Megadrive/Genesis
- Topic: some help for rom hacking
- Replies: 4
- Views: 4262
If you look at the code, it copies the register to RAM for later use.
You can change from:
to just
.. and then fix checksum.
You can change from:
Code: Select all
MOVE.b $00A10001, D0
Code: Select all
306: 1039 00a1 0001
Code: Select all
MOVE #$0xa0, D0
NOP
NOP
Code: Select all
306: 70a0 4e71 4e71
- Fri Jun 28, 2013 1:23 pm
- Forum: Tools
- Topic: Time to update to gcc 4.6.2
- Replies: 42
- Views: 32195
- Thu Jun 27, 2013 11:03 am
- Forum: Tools
- Topic: Time to update to gcc 4.6.2
- Replies: 42
- Views: 32195
I'm not aware of any emulator yet supporting the CD mode 1 in 32X mode. I had to get that working completely on real hardware via flash cart. Fusion supports mode 1 in MD mode. A bit of a gravedig, but I wonder if we have anything that uses this? I could of course cook something myself, but maybe s...