Search found 323 matches

by Fonzie
Mon Dec 24, 2007 10:15 am
Forum: Blabla
Topic: Homemade Capacitor
Replies: 22
Views: 11800

It would be quite possible to make a DMA chipset (that copy a memory to another memory)... But a homemade CPU that execute nops ^^... haha... Ho, i'm very away from all those things ^^. I remember my cousin had to make a cpu out of transistors at poly's, it was just doing additions and a few other t...
by Fonzie
Sun Dec 23, 2007 1:36 pm
Forum: Blabla
Topic: Homemade Capacitor
Replies: 22
Views: 11800

sure! :D
by Fonzie
Wed Dec 19, 2007 10:49 am
Forum: Demos
Topic: SEGA GENESIS VGM PLAYER
Replies: 48
Views: 29960

Wow :) Btw, you might be able to cleverly mix 1M and 2M ram modes (so you can always keep 128KB for z80 and the other 128KB alternatively on megacd or megadrive side for the undécoded VGM file... That's just an idea. I would not suggest to bus request the megacd pgrm ram... I do it for tavern rpg an...
by Fonzie
Tue Dec 11, 2007 7:28 am
Forum: Demos
Topic: SEGA GENESIS VGM PLAYER
Replies: 48
Views: 29960

You have 50% free 68K cpu time? Or I misread?
About the vgz, yeah, just extract the vgm from them and it's ok! :)
by Fonzie
Sun Dec 09, 2007 1:00 pm
Forum: Tools
Topic: SGCC vs. XGCC - speed?
Replies: 14
Views: 7593

Hi shiru, About the long : 34 bit... its just a typo... its 32bit too :) Well, I never installed XGCC, I just put the content in c:/xgcc and put the xgcc.bat in the c:/ root and its done :) And to compile, you first execute c:/xgcc.bat and then c:/yourproject/compile.bat (without closing the window)...
by Fonzie
Sun Dec 09, 2007 12:58 am
Forum: Demos
Topic: SEGA GENESIS VGM PLAYER
Replies: 48
Views: 29960

Yeah, definitively great! :)
Good job you did man. GYM players were existing, PSG players too... but no VGM player until now, haha :)
by Fonzie
Sun Dec 09, 2007 12:40 am
Forum: Tools
Topic: SGCC vs. XGCC - speed?
Replies: 14
Views: 7593

Maybe I had a older version... strange. No, I was not dreaming, it has really some crazy bugs... Most of them are coming randomly on big project. The bug that was happening systematically was the while(1){} one and the & and | thing. I don't remember the exact cases, sorry. KanedaFR will confirm. Fo...
by Fonzie
Sun Dec 09, 2007 12:20 am
Forum: Tools
Topic: SGCC vs. XGCC - speed?
Replies: 14
Views: 7593

By SGCC, you mean the very light exe suite to compile some md stuff, right? The one without any .ld. Was my fav and first compilator... very easy to install and crazy easy to use ! :D Well, kanedaFR can tell you all the bugs we could find... Most of them are scary... I remember lot of bugs around po...
by Fonzie
Sat Dec 08, 2007 3:10 pm
Forum: Tools
Topic: SGCC vs. XGCC - speed?
Replies: 14
Views: 7593

I did compare speed :) Mightymighty Missile was programmed in a very loopy/linear way, so, when I went from SGCC to GCC (with a lot of pain, defining Volatiles & stuff) my fps counter exploded! I don't have precise values, and I don't know if it came from my programming method... But with -O 4 on GC...
by Fonzie
Tue Dec 04, 2007 11:21 am
Forum: Video Display Processor
Topic: VDP registers timings
Replies: 34
Views: 23655

Does someone know what happen if display is disabled during line scanning period (clearing VDP register 01 bit 6) ? From my tests... You can disable anytime the rendering (not the vdp)... the Hsync/Vsync will continue to work and the TV wont loose sync. When rendering is turned off, you get the DMA...
by Fonzie
Tue Dec 04, 2007 7:37 am
Forum: Super 32X
Topic: Power Drift
Replies: 3
Views: 3515

lol, stop sarcasms please ;P
by Fonzie
Sat Dec 01, 2007 3:45 pm
Forum: Mega/SegaCD
Topic: 3d software rendering on megacd
Replies: 20
Views: 14727

Well, dropping 32pixels (224-32 = 192) isn't a real trouble compared to the crazy power you get in exchange :P Top of that, "software" rendered games will never been fullscreen... So! :D And yeah, I'm in 256px width mode :) If you would be ready to cut 32 pixels on top and 32pixels on bottom of scre...
by Fonzie
Fri Nov 30, 2007 11:16 pm
Forum: Mega/SegaCD
Topic: 3d software rendering on megacd
Replies: 20
Views: 14727

208? That's it? Well, I guess it's a record until someone claims otherwise. Congratulations! Any irony? :P I thought the limit for a normal VBLANK was around 128 tiles or so... Anyway, I got my demo running on real hardware... It indicates 75 frames rendered for 50 DMAted and 60frames rendered for ...
by Fonzie
Wed Nov 28, 2007 11:15 pm
Forum: Megadrive/Genesis
Topic: newbie creating genesis graphics
Replies: 68
Views: 27808

Yeah, I have no problem at all using XGCC or whatever.. But I'm just stuck when it comes to explaining how to add a .s file to a devkit that I don't have installed and where the linking/compilation process seems a bit automatized ;P So, someone that use Stef devkit, would mind to explain what to do ...
by Fonzie
Wed Nov 28, 2007 4:54 pm
Forum: Megadrive/Genesis
Topic: Genesis Address Bus and Max RAM
Replies: 35
Views: 21034

I thought microcoded CISCs just appeared "recently" (early 90's)... Shit on me ^^