Search found 159 matches
- Wed Dec 11, 2019 4:57 am
- Forum: Megadrive/Genesis
- Topic: M68K Bus Control and Vdp
- Replies: 26
- Views: 50839
Re: M68K Bus Control and Vdp
Remember that it needs to support byte access so the Z80 can talk to it a byte a time in SMS mode.
- Tue Oct 08, 2019 1:11 am
- Forum: Controls
- Topic: New device letters
- Replies: 20
- Views: 44408
Re: New device letters
After reading the first message, I paused to think of ways to do it. In about five seconds I came up with "lower case". I seem to be in the majority.
- Tue Sep 03, 2019 11:52 pm
- Forum: Megadrive/Genesis
- Topic: Megadrive was always the answer
- Replies: 22
- Views: 36677
Re: Megadrive was always the answer
What's the point in making anything using CD now when you can use an SD card instead? Stick an ARM in there to handle loading from the SD card, and maybe a few other things like play audio files from the SD card (like playing red book audio from a CD) and writing game saves to the SD card. What you'...
- Wed Aug 14, 2019 4:44 pm
- Forum: Tools
- Topic: Compiling asmx
- Replies: 14
- Views: 24143
Re: Compiling asmx
Finally getting real life under control to where I can work on this stuff again. For now, it's in http://svn.xi6.com/svn/asmx/ with the "current" 2.x version being in: http://svn.xi6.com/svn/asmx/branches/2.x/ If the current 2.x branch works well enough, I'm going to make it an official 2.0 version....
- Fri Oct 22, 2010 11:36 am
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206
Oh, now I see. He's trying to build with 3.4.6 as his main compiler. Apple's dev environment has been using 4.x for a while now, so I guess that's why I haven't had problems. In that case, see if your Linux has an option to specifically install GCC 4 compilers. (It's been how many years now? People ...
- Tue Oct 19, 2010 11:44 am
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206
- Mon Oct 04, 2010 12:04 pm
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206
About all I can say is that a "stock" linux install is not likely to include a sufficient set of tools and libraries to compile compilers, just as I have to install the Developer Tools disk on OS X to even compile anything. All my script does is start the various build scripts. If newlib has some ob...
- Sun Sep 12, 2010 12:03 pm
- Forum: Tools
- Topic: New Sprite editor
- Replies: 12
- Views: 11900
No flames. :D -m32 only makes that one item being compiled output 32 bit object code. As long as the rest of the makefile links together those 32 bit object files with 32 bit libraries, it shouldn't be an issue. The main problem is that most people just use lib specs like -lc or -lm, which on 64 bi...
- Sun Sep 12, 2010 11:49 am
- Forum: Megadrive/Genesis
- Topic: Help with Copier RAM Test
- Replies: 16
- Views: 13426
A real good memory test is the "walking bit" test. Basically, you write a pattern of 1 0 0 or 0 1 1 repeated through memory, and then verify that it didn't change during writing. Then you try the next two positions. So you end up writing groups of 3 words through memory:: 1 0 0 1 0 0 1 0 0 1 0 0 1 0...
- Thu Sep 02, 2010 3:21 pm
- Forum: Hardware
- Topic: Making Light gun for LCD TV
- Replies: 45
- Views: 106802
I suppose about the only thing workable would be a Wii-like solution with reference lights. You would still need to calibrate it, and some pretty decent computing power and algorithms to determine the position from the reference lights. You would also need a pass-through of the video signal to get t...
- Thu Sep 02, 2010 3:16 pm
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206
I think I finally found the problem with my domain name. There was a missing right paren on one line, so it rejected the new file completely and kept serving up the one it already had in memory which still referred to the dead server. Hopefully it will be working right everywhere after a few hours f...
- Mon Aug 30, 2010 3:14 am
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 140
- Views: 180400
Replacing the BIOS to make that work would be a lot of trouble, especially because of the problem with CDDA audio. Also, the Sega CD is not an IDE device. I think the Xbox was the first console to use an IDE interface for optical drive / hard disk. It would be much less trouble to make a RAM cartrid...
- Wed Aug 18, 2010 3:10 pm
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206
- Fri Aug 13, 2010 11:32 pm
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206
- Fri Aug 13, 2010 11:14 pm
- Forum: Tools
- Topic: Megadrive SDK
- Replies: 25
- Views: 23206