Search found 323 matches
- Tue Aug 25, 2009 3:01 am
- Forum: Controls
- Topic: 6Button reading routine, C code and a glitch!.
- Replies: 11
- Views: 24302
pb as volatile? Yep I did sir! :) Thank you all for posting. >HardWareMan Seeing your code. I was wondering... Lets say there is a 3button joypad plugged, how would you be sure that X/Y/Z/Mode wouldn't reflect UP/DOWN/LEFT/RIGHT ? I dont see any test in your code (I'm newbie at asm!). At least Comix...
- Fri Aug 21, 2009 7:38 am
- Forum: Controls
- Topic: 6Button reading routine, C code and a glitch!.
- Replies: 11
- Views: 24302
6Button reading routine, C code and a glitch!.
Hi Guys, I've been trying to edit the classic 3button reading function so it can handle 6buttons as well. The idea is to always read twice the joypad (even if its 3button), and look if the second read is different than the first (if so, its 6button joypad, ORRRRR bad contacts!). That sounds like a h...
- Mon Feb 09, 2009 2:31 pm
- Forum: Demos
- Topic: Wolf32X - now at alpha 4!
- Replies: 36
- Views: 32461
- Sun Jan 18, 2009 9:23 am
- Forum: Video Display Processor
- Topic: Is DMA useful ?
- Replies: 30
- Views: 29382
Jorge Nuno > Well, I can't turn off video as its displaying something. Umm, 32 bytes/line of display... Are you sure? Because it would mean that you could DMA 224 tiles during active period, and I have some doubts about it ^^. Hoooo god, that's nerdism to the max :P Nobody want to do a song about th...
- Sun Jan 18, 2009 12:18 am
- Forum: Video Display Processor
- Topic: Is DMA useful ?
- Replies: 30
- Views: 29382
Ok, I have a little question that is regarding "should I dma or not"... I want to transfert 512 bytes from a fixed ram location into vram... But I'll have to do a lot of 512 bytes transferts, that may occur during v_active mainly... I tried to do little dmas of 512 bytes.... And also tried to do 68K...
- Sat Jan 17, 2009 5:52 pm
- Forum: Megadrive/Genesis
- Topic: Checksum calculation (slow in GCC)
- Replies: 9
- Views: 7054
Why you want to make checksum for whole ROM every time? It's slightly pointless. If you want to have this function to ensure that cartridge isn't damaged, you can make this test optional (executed only while hold some buttons on power-up or reset), and describe that in the manual. Thx for all the a...
- Tue Oct 28, 2008 12:35 pm
- Forum: Megadrive/Genesis
- Topic: Checksum calculation (slow in GCC)
- Replies: 9
- Views: 7054
- Tue Oct 28, 2008 11:38 am
- Forum: Megadrive/Genesis
- Topic: Checksum calculation (slow in GCC)
- Replies: 9
- Views: 7054
Checksum calculation (slow in GCC)
Hi :) I wanted to make my own checksum routine today... Basically adding all the bytes of the rom to a 16bit word : temp=0; for(i=0x200;i<4096*1024;i++) { temp+=(*checksum0); checksum0++; } The fact is... it takes around 15-20 seconds to checksum 4MegaBytes :P So my question is... Is that normal for...
- Mon Sep 29, 2008 5:33 pm
- Forum: Demos
- Topic: Another 32X demo
- Replies: 11
- Views: 9979
Haha, seeing a flat polygon is always great.... great memories. What's great is that it puts your own imagination at work :D Here, i see a sort of outrun game, sunset, and a very monochromatic racing game, with black road & lamp pillars around... And just some red details, like shines on the cars an...
- Mon Sep 22, 2008 4:49 pm
- Forum: Demos
- Topic: Another 32X demo
- Replies: 11
- Views: 9979
- Thu Sep 11, 2008 10:28 am
- Forum: Video Display Processor
- Topic: 1536 color test
- Replies: 11
- Views: 10754
- Thu Sep 04, 2008 10:08 am
- Forum: Mega/SegaCD
- Topic: Porting Megadrive code to mega cd
- Replies: 10
- Views: 13433
Plop
Its MOD who did the easy to use loader :
http://www.retrodev.com/
I was a user of it But now I have my own loader (main & subcpu boot code), however, it is not as automated as MOD's one but I can provide C source code.
Fonz
Its MOD who did the easy to use loader :
http://www.retrodev.com/
I was a user of it But now I have my own loader (main & subcpu boot code), however, it is not as automated as MOD's one but I can provide C source code.
Fonz
- Thu Sep 04, 2008 10:04 am
- Forum: Demos
- Topic: Pier Solar
- Replies: 9
- Views: 9496
Its nice because many comments are already fixed (demo is from april) :D Thx for the interest. The the character moving/camera scorlling is... bad, I think the pokemon games do it better, the camera follows the char movement with no delay. Do you mean, the camera follow the char movement with NOT EN...
- Thu Jul 17, 2008 5:13 pm
- Forum: Tools
- Topic: Moved to XP SP3, and XGCC troubles :/
- Replies: 6
- Views: 7974
Thx all. I can't install SP2, my GPU and sound drivers are for SP3 only. And maybe i forgot to say, but I never install XGCC, I always copy/paste the whole Xgcc folder & .bat in c:/ to "install" it. It worked great on my xpSP2 laptop, my w98 comp... "c:\windows\_default.pif. " Very interesting file....
- Thu Jul 17, 2008 2:45 pm
- Forum: Tools
- Topic: Moved to XP SP3, and XGCC troubles :/
- Replies: 6
- Views: 7974
Moved to XP SP3, and XGCC troubles :/
Hello, Since I bought a new laptop, I recently moved to XP SP3 (I was XP SP2 and Windows 98 before). And although I tried to install XGCC as usual (maybe i forgot something), I can't compile anymore Piersolar project :/ In my XGCC . bat ... gcc -b 68k -m68000 -O3 -c lzsslib.o lzsslib.c OK gcc -b 68k...