Also...
https://www.youtube.com/watch?v=35VFGRCYkjM
Did you ever imagine it?
Search found 745 matches
- Mon Jan 22, 2018 6:39 am
- Forum: Megadrive/Genesis
- Topic: The Video Game History Foundation: Digging for treasure in Aladdin’s source code
- Replies: 5
- Views: 8450
- Sat Oct 21, 2017 8:38 am
- Forum: Megadrive/Genesis
- Topic: The Video Game History Foundation: Digging for treasure in Aladdin’s source code
- Replies: 5
- Views: 8450
The Video Game History Foundation: Digging for treasure in Aladdin’s source code
Did you know about it? It is awesome! Link below:
https://gamehistory.org/aladdin-source-code/
https://gamehistory.org/aladdin-source-code/
- Wed Sep 13, 2017 8:01 am
- Forum: Megadrive/Genesis
- Topic: M68k opcode sizes test ROM
- Replies: 19
- Views: 26157
Re: M68k opcode sizes test ROM
Mask of Destiny wow, nice debugging! Now I know, why my cartridge also reboots. I'm just forgot about RESET opcode... So, it must be launched only with dumb ROM cartridge.
- Tue Sep 12, 2017 4:28 pm
- Forum: Megadrive/Genesis
- Topic: M68k opcode sizes test ROM
- Replies: 19
- Views: 26157
Re: M68k opcode sizes test ROM
Can you post compiled versions of updated tests?
- Tue Aug 29, 2017 3:04 am
- Forum: Hardware
- Topic: SEGA IR wireles joypad
- Replies: 7
- Views: 12670
Re: SEGA IR wireles joypad
The IR problem is in unidirectional. So, all emitting devices doesn't to know about each other. If they can be bidirectional, they can be in passive mode and answer only when base unit ask any single device wich will have unique address (callsign). All arbitrage done by base unit and no colisions wi...
- Mon Aug 28, 2017 12:30 pm
- Forum: Hardware
- Topic: SEGA IR wireles joypad
- Replies: 7
- Views: 12670
Re: SEGA IR wireles joypad
Sure. The joypad sends its own state every X time. Always when any button is pressed. The base reads the joypad state and convert it to state of internal joypad, that physically connected to the console. If no state was recieved by IR after X time (plus some time) the internal joypad state force to ...
- Thu Aug 17, 2017 8:40 pm
- Forum: SGDK
- Topic: ROM padding question
- Replies: 22
- Views: 14717
- Sat Aug 12, 2017 1:30 pm
- Forum: Cartridge
- Topic: How does work SRAM on everdrive?
- Replies: 20
- Views: 26023
Re: How does work SRAM on everdrive?
Ah, so...
Should work! One more reason to use low byte D7-D0.
Should work! One more reason to use low byte D7-D0.
- Sat Aug 12, 2017 11:34 am
- Forum: Cartridge
- Topic: How does work SRAM on everdrive?
- Replies: 20
- Views: 26023
Re: How does work SRAM on everdrive?
Then I suppose if neither CAS0, WRL or WRH is asserted an invalid address exception is launched, right? You should use these signals only with CE0 and get desired access within $000000-$3FFFFF (first 4 Mbytes) dedicated to ROM cartridge. That's why 32MBit games use bank switching for SRAM (f.e. Sto...
- Sat Aug 12, 2017 9:56 am
- Forum: Cartridge
- Topic: How does work SRAM on everdrive?
- Replies: 20
- Views: 26023
Re: How does work SRAM on everdrive?
It is more than meets the eye. If you use D7-D0, so that you can access to it bytewise at odd addresses, because of big endianness of M68K. But MD cartridge slot have only one CAS0 for read and two WRL and WRH for write. So, cartrige can be read only by word while can be written by any byte separatl...
- Sat Jul 29, 2017 8:23 am
- Forum: Hardware
- Topic: SEGA IR wireles joypad
- Replies: 7
- Views: 12670
SEGA IR wireles joypad
I recently bought SEGA IR joypads. The base: MODEL No. MK-1648 Chipset: SEGA 315-5714 (codes 9338EP713 069 ) http://savepic.net/9631729m.jpg http://savepic.net/9622513m.jpg http://savepic.net/9621489m.jpg http://savepic.net/9620465m.jpg http://savepic.net/9627633m.jpg http://savepic.net/9632753m.jpg...
- Sat Jul 29, 2017 4:37 am
- Forum: Cartridge
- Topic: How does work SRAM on everdrive?
- Replies: 20
- Views: 26023
Re: How does work SRAM on everdrive?
$1B0 - 'R' $1B1 - 'A' $1B2 : ___ D7 always 1, ___ D6 - 1 = RAM don't destroy after power off, ___ D5 - always 1, ___ D4:D3 - 00 = word sized RAM (D0-D15), 01 = not used, 10 = even byte RAM (D8-D15), 11 = odd byte RAM (D0-D7), ___ D2:D0 - always 000. $1B3 - ' ' (0x20) $1B4 - dword, start address of ...
- Fri Jul 21, 2017 6:05 pm
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 140
- Views: 172807
Re: HDD (or flash) instead of a CD, questions...
Oh, so... OK, I can try this at home.
- Fri Jul 21, 2017 3:46 am
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 140
- Views: 172807
- Thu Jul 20, 2017 3:37 pm
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 140
- Views: 172807
Re: HDD (or flash) instead of a CD, questions...
It's quiet down here. Too quiet.