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Re: Lands of Lore (CD version) General MIDI port changer

Posted on 2021-02-20, 19:06

in DOS
A lot of refinements made, probably last version of the tool. It is now (hopefully) completely dummy proof. Invalid characters will be denied, and only 3 actual characters are possible to input. Some code optimization made too, with much better multiplication. Not that a simple tool needed it, but …

Re: Lost Vikings General MIDI port changer

Posted on 2021-02-17, 20:57

in DOS
Ok new version now available, now user can type port instead of a pre made selection. The old version is still available if someone prefers the older one. This new version also does A-F hex digits, for those cards that have options for weird ports.

Re: Lost Vikings General MIDI port changer

Posted on 2021-02-17, 13:21

in DOS
I wrote an 8086 asm version which allows you to enter the two digits of the address: https://16-bits.org/etc/lvmusprt.zip Please note that I am new to x86 asm coding, and as such the included code is not the best. EDIT: Can this port have A..F digits in it? If so, I need A..F hex range checking as …

Re: Lost Vikings General MIDI port changer

Posted on 2021-02-16, 21:30

in DOS
I uploaded the diagram for the address-switches I'm aware of the ports the SCC-1 uses, Tyrian is a game that supports all those on purpose, because of an SCC-1. I've made a revised version of the program real fast to make port 336h available. I've uploaded it on my previous post. This program was …

Re: Lost Vikings General MIDI port changer

Posted on 2021-02-16, 20:40

in DOS
I don't mind making it more robust. Granted, the SCC-1 is probably the only card that has those weird ports. I'll update the program with user input. EDIT: In the meantime here's a revised version to accomodate you for port 336h. Filename LVPORT.exe File size 1.87 KiB Downloads 1 download

Re: Diamond Tech DT-0197H

Posted on 2021-02-07, 17:19

Both unisound and ALS007 drivers work, but I got another problem. In Wolfenstein 3D the fm music works but sound fx is played only one (for example gun sound) then all sound fx is cut off. It is AMD 386DX40 with 16MB of RAM. Any ideas? Sounds like a DMA conflict. Make sure nothing else is using the …

Re: VESA mode programming from real mode

Posted on 2021-02-05, 21:21

megatron-uk wrote on 2021-02-05, 16:10: I optimised a few of the other block fill routines and moved all of the artworking to stream-from-disk method to reduce base memory use. Very good decision, that should help a lot, and theoritically should be able to handle over a thousand entries without …

Re: Difficult games to get working

Posted on 2021-02-04, 11:40

The Last Express, a game by Jordan Mechner of Prince of Persia fame is notorious difficult for 2 things: - Has a very fussy SVGA VESA requirement that does not work on a Voodoo 3; (tried every 3DFX TSR there is but no dice) - Absolutely requires a Sound Blaster 16 or 100% compatible; (No GUS, no …

Re: Diamond Tech DT-0197H

Posted on 2021-02-03, 22:04

akosela wrote on 2021-02-03, 21:07: Can someone point me to DOS drivers for this card? Whats your opinion on this sound card? quality of OPL3 compatible sound? Any problems with games? Thanks Try the ALS007/ALS100 drivers.

Re: VESA mode programming from real mode

Posted on 2021-02-03, 13:35

3. Memory is the only limit. I need a way of counting available free memory while it is running, but each game 'object' in ram is a few hundred bytes, so I'd say at least 500 would be doable. My PC98 setup had about 300 titles in mostly the same codebase, but it was in protected mode and not …

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