Search found 2378 matches

by TmEE co.(TM)
Thu Dec 07, 2006 3:58 pm
Forum: Announcement
Topic: Z80 tools
Replies: 2
Views: 4908

It helps a LOT !!!
by TmEE co.(TM)
Thu Dec 07, 2006 9:16 am
Forum: Cartridge
Topic: Problem with accessing SRAM
Replies: 10
Views: 5807

Problem with accessing SRAM

I'm writing a game for MD (Glass Braker MD) which is uses SRAM, but I have trouble accessing it. MOVE.L #$00010001, A0 ; load SRAM start addess MOVE.B #230, (A0) ; write byte MOVE.B (A0), D0 ; read byte Trouble is that the read byte is not 230 but 0. SRAM gets saved with 230 in *.SRM file. What need...
by TmEE co.(TM)
Thu Dec 07, 2006 8:52 am
Forum: Megadrive/Genesis
Topic: Genny and 3D
Replies: 138
Views: 38733

You may want to examine how Duke3D, Zero Tolerance or Bloodshot works. These are fine raycasters made for MD and run quite fast
by TmEE co.(TM)
Thu Dec 07, 2006 8:44 am
Forum: Announcement
Topic: New home-made MD cartridge R/W device is born
Replies: 5
Views: 6650

The VPP (12V programming voltage) pin is not on the cart slot, but it could be if you like (use some unused pin). I used a wire for that. I'm working on EPROM stuff as all EPROMs are not programmed the same way. There are lots of Flashes out there, if its industry standard and 5V it can be used with...
by TmEE co.(TM)
Wed Dec 06, 2006 1:48 pm
Forum: Video Display Processor
Topic: Is DMA useful ?
Replies: 30
Views: 13006

I've made a mistake. It was the Z80, and not the DMA (!!!) that was cut from the Genny 3 !!!
Z80 is a MUST component, as almost every game uses it as SFX/BGM engine while 68K does game/GFX therefore it is in Genny 3
by TmEE co.(TM)
Wed Dec 06, 2006 1:41 pm
Forum: Announcement
Topic: Honorable members
Replies: 14
Views: 12296

Same here !!! You guys rock !!!
by TmEE co.(TM)
Wed Dec 06, 2006 6:31 am
Forum: Announcement
Topic: New home-made MD cartridge R/W device is born
Replies: 5
Views: 6650

Its rough indeed...

It is rough, but it works !!! I dumped most my cartridges, messed with backup RAM on Sonic3 cart and
even BURNED an EPROM !!! Man, EPROMs program easy. I started to write the documentation and some instructions.
by TmEE co.(TM)
Tue Dec 05, 2006 1:44 pm
Forum: Announcement
Topic: New home-made MD cartridge R/W device is born
Replies: 5
Views: 6650

New home-made MD cartridge R/W device is born

On 2nd december is started to build a MD cartridge R/W device whis is 100% designed by me. Today (5th) I got it working correctly, I dumped my Sonic & Knuckles cartridge. It took 45 seconds and the result was a perfect bit accurate copy of the ROM image. If I ASM optimize my QB45 code (I love QB45) ...