VOGONS

Search

Common searches

Search results

Display options

Display options

Re: VESA mode programming from real mode

Posted on 2021-01-15, 09:53

So I've gotten some basic stuff up and running to query the VESA BIOS, mainly the INT10 call to retrieve the basic VBE data structure and enumerate the mode list. So far, so good. There are two functions so far: vesa_getvbeinfo int vesa_getvbeinfo(vbeinfo_t *vbeinfo){ // Retrieve basic VESA BIOS …

Re: VESA mode programming from real mode

Posted on 2021-01-14, 16:37

Brilliant, that confirms my thoughts of using that mode as a baseline. I suppose I could have targetted 320x200 which would work on *all* VGA cards, but using that mode to display box artwork, screenshots etc is just too much of a compromise for the "works on anything with VGA" advantage it comes …

Re: VESA mode programming from real mode

Posted on 2021-01-14, 15:02

Thanks for the pointers (ha!) folks. Just to clarify, this isn't for a game - it's a game browser/launcher interface, so speed isn't an outright priority. I've linked the two previous projects I wrote for a couple of Japanese systems, below: Built for the NEC PC-98 https://www.youtube.com/watch?v= …

VESA mode programming from real mode

Posted on 2021-01-14, 11:12

I have a hankering to write a full-screen games launcher for DOS, in the same manner as I have done for the NEC PC-98 and Sharp X68000. I want to target 8086 and up, with 512kb VGA as a minimum (so that I can use 640x480 or 640x400 in 256 colours). So DJGPP and protected mode is out of the question. …

Re: Cirrus CS4624 dos init - fails after PCMCIA

Posted on 2018-09-10, 10:34

I have a Roland SCP-55; it's a Sound Canvas midi module on a PCMCIA card. There are DOS drivers for both the PCMCIA sockets on the 600X, as well as the SCP-55. I can load the drivers for the PCMCIA and the Roland card works (with glorious sounding music), but at that point the CS4624 will no longer …

Re: What do you drive?

Posted on 2018-09-02, 13:39

1973 Ford Escort (wide arched RS2000 replica with Sierra Cosworth motor) ~ 2.0 16v 4cyl turbo with ~320bhp 1993 Porsche 911 Turbo ~ 3.3 6cyl turbo with >360bhp 2010 Alfa Mito Cloverleaf ~ 1.4 4cyl turbo with 170bhp The Escort has been a long time restoration project, just finished earlier this year, …

Re: Cirrus CS4624 dos mixer

Posted on 2018-09-01, 20:03

Okay, confirmed. Regardless of UMB status, devices loaded high or low, as soon as the cardsoft "CS.SYS" is loaded, the cs4624 tool no longer runs. Every other cardsoft driver can be loaded, but that particular one (the main card services driver) stops it dead in its tracks. What a huge blow, and it …

Re: Cirrus CS4624 dos mixer

Posted on 2018-09-01, 00:16

Alas, hit a bit of an issue. I can either enable the PCMCIA services and the SCP-55, or I can initialise the CS4624 audio. As soon as the Cardsoft services are loaded the cwcaudio.exe utility refuses to load and just hangs. Damn, there goes my idea for SC/GM and SB support 🙁

Re: Cirrus CS4624 dos mixer

Posted on 2018-08-31, 20:50

Incidentally, the CS4624 DSP has quite a reasonable sounding wavetable soft synth part in Windows included as part of the basic driver pack (PV2885.zip). It's not exactly up to the virtual Roland synth or anything like that, but if you've got nothing else, it isn't bad.

Page 37 of 62

Go to top of page Go to top of page
Close window
Close window