Search found 505 matches
- Sun Jan 17, 2021 4:33 pm
- Forum: SGDK
- Topic: Getting the R, G, B components of a palette color
- Replies: 6
- Views: 98
Re: Getting the R, G, B components of a palette color
(Sorry but people is throwing objects to my house, firecrackers it seems by the amount of damage: deleting messages)
- Sat Jan 16, 2021 8:47 pm
- Forum: SGDK
- Topic: Getting the R, G, B components of a palette color
- Replies: 6
- Views: 98
- Fri Nov 06, 2020 3:27 pm
- Forum: Demos
- Topic: Reknum: Fantasy of Dreams for Sega MD / Genesis
- Replies: 1
- Views: 1531
Re: Reknum: Fantasy of Dreams for Sega MD / Genesis
wow! there is a huge difference in tech on those consoles, you can reuse pretty much nothing...
- Sun Oct 04, 2020 5:04 pm
- Forum: Mega/SegaCD
- Topic: Booting? Interrupts? What do I need to do?
- Replies: 1
- Views: 2172
Re: Booting? Interrupts? What do I need to do?
Both 68k read exception start address from the 8-255 first bytes memory address. Every 4bytes is a direct jump exception address.
Remember that when there is no cartridge the first two 4MB of address space on MD get swapped.
- Wed Sep 23, 2020 10:24 am
- Forum: Demos
- Topic: Perlin & Pinpin - The Robin Tower (2 episodes available!)
- Replies: 11
- Views: 4819
Re: Perlin & Pinpin - The Robin Tower (2 episodes available!)
Nice to see a proper puzzle game, I’m so glad!
Last time I tried a puzzle game was like:”1 2, now solve it” (I think you can do it better than that), and I was not really in the mood for new puzzles, but thanks to you I’m back in the game, literally.
Last time I tried a puzzle game was like:”1 2, now solve it” (I think you can do it better than that), and I was not really in the mood for new puzzles, but thanks to you I’m back in the game, literally.
- Tue Jul 28, 2020 5:09 am
- Forum: Mega/SegaCD
- Topic: mcd-verificator (CD core accuracy tests)
- Replies: 24
- Views: 6622
Re: mcd-verificator (CD core accuracy tests)
If registers are only accessed from the BIOS that solves the problem.
@Chilly Willy are you saying that MCD doesn’t put the 68K bus in high impedance when hasn't taken the MD-68K bus?
@Chilly Willy are you saying that MCD doesn’t put the 68K bus in high impedance when hasn't taken the MD-68K bus?
- Fri Jul 24, 2020 8:54 pm
- Forum: Mega/SegaCD
- Topic: mcd-verificator (CD core accuracy tests)
- Replies: 24
- Views: 6622
Re: mcd-verificator (CD core accuracy tests)
If signals like, for example, !TIME have a definitive impact in the address decoding of the MCD, I think they should be considered part of the address lines.
- Fri Jul 17, 2020 7:07 pm
- Forum: SGDK
- Topic: Sega Genesis Dev Kit (SGDK)
- Replies: 837
- Views: 514896
Re: Sega Genesis Dev Kit (SGDK)
@cloudstrifer: The sprites you show on the image are leftovers from past use, and innocuous since they are not linked in the list (“Link” field).
- Tue Jul 14, 2020 3:52 pm
- Forum: Mega/SegaCD
- Topic: mcd-verificator (CD core accuracy tests)
- Replies: 24
- Views: 6622
Re: mcd-verificator (CD core accuracy tests)
No, I was saying that I thought not possible to have both the 32X and the SCD/MCD working from the cartridge slot at the same time, the MCD being emulated by the everdrive cart and a real 32X. So you have to choose between 32X or MCD, and no 32X-MCD combo. Am I wrong? The problem is that the 32X com...
- Mon Jul 13, 2020 8:41 pm
- Forum: Mega/SegaCD
- Topic: mcd-verificator (CD core accuracy tests)
- Replies: 24
- Views: 6622
Re: mcd-verificator (CD core accuracy tests)
Both 32X and MCD working from the cartridge port...? I thought that was not possible...
- Wed Jul 08, 2020 1:51 pm
- Forum: Mega/SegaCD
- Topic: mcd-verificator (CD core accuracy tests)
- Replies: 24
- Views: 6622
Re: mcd-verificator (CD core accuracy tests)
Hi KRIKzz, curiosity just spike up a lot with you messages, what is your project about? Perhaps a MegaCD/SegaCD in a FPGA? Just curious...
- Thu May 14, 2020 1:32 pm
- Forum: Megadrive/Genesis
- Topic: VDP 8x16 Interlace Mode
- Replies: 7
- Views: 2673
Re: VDP 8x16 Interlace Mode
Also:
Working on 1:2 resolution is weird for graphical artist, or anyone else, I have never seen do it. Pixels are not square any more.
Doubled resolution is done by interlacing images (on different lines), not sure of the result quality on 90’s phosphor tv’s.
Working on 1:2 resolution is weird for graphical artist, or anyone else, I have never seen do it. Pixels are not square any more.
Doubled resolution is done by interlacing images (on different lines), not sure of the result quality on 90’s phosphor tv’s.
- Tue May 12, 2020 10:35 am
- Forum: Megadrive/Genesis
- Topic: VDP 8x16 Interlace Mode
- Replies: 7
- Views: 2673
Re: VDP 8x16 Interlace Mode
You need twice the memory for tiles, backgrounds and sprites alike, and there is no much to start with if you use all the others planes. So it’s a case between resolutions vs diversity, where variety is already somewhat scarce. On lots of design questions memory is the underlying factor, today as ev...
- Thu Apr 30, 2020 9:21 pm
- Forum: Megadrive/Genesis
- Topic: Alternative to Vasm assembler?
- Replies: 27
- Views: 7073
Re: Alternative to Vasm assembler?
As far as I know that can’t be done: the problem is that symbols '/' and '-' are interpreted as division and minus.
- Sat Apr 25, 2020 6:35 pm
- Forum: Megadrive/Genesis
- Topic: Alternative to Vasm assembler?
- Replies: 27
- Views: 7073
Re: Alternative to Vasm assembler?
Very true - the C preprocessor can be run on gas files (use .S instead of .s for automatically doing so). Pragmas and defines and stuff can be used. This does make a gas assembler specific file very flexible compared to more traditional assemblers. I didn't know! investigation about to lunch. Defin...