Re: DOSBox bugs
Posted on 2009-07-08, 14:50
text_addr2.diff includes text_addr.diff, don't use them together.
Re: Detecting DOSBox version from inside DOSBox?
Posted on 2009-07-07, 20:40
The VESA BIOS has (bad luck if you run in vgaonly or CGA mode) 0.73 has a string at 0xfe061 that 0.72 doesn't have
Re: DOSBox bugs
Posted on 2009-07-07, 19:02
Can't reproduce - do you use some odd cycles values?
Re: Why build a 486 system?
Posted on 2009-07-06, 20:00
> Why build a 486 system? Because you can.
Re: A very special question about old 486 CMOS batteries
Posted on 2009-07-06, 12:39
The charging voltage is indeed the problem - it depends on the cirquit wether the charging voltage will be exceeded. LiIon cells turn into bombs if they are charged with a voltage too high. So > Remove the battery and check what voltage is provided by the board. The coin cell holder on the board is …
Re: PIII, Athlon mobo w ISA slot remommendation
Posted on 2009-07-04, 20:50
I think you get only one chip. They depict what you would get if you had a different mainboard.
Re: DOSBox bugs
Posted on 2009-07-04, 19:45
Patch for text mode memory wrapping, also partially fixes the game 'ICON' with machine=CGA.
Re: A very special question about old 486 CMOS batteries
Posted on 2009-07-04, 19:06
http://www.powerstream.com/p/Lir2032.pdf It will work as long as the voltage on the battery will not get higher than 4.2V. Remove the battery and check what voltage is provided by the board. Also, you should remove the cell when the computer is not needed for a long time, as it takes damage when …
Re: Determining CPU orientation on Socket 3 motherboards
Posted on 2009-07-04, 17:57
Depends on your type of socket - on the more modern ones it's the edge with only one hole, on the others you'll have to look out for markings on the board. If there are 123456... printed next to the socket it's the edge with '1'.
Re: A question about speed
Posted on 2009-07-04, 16:53
There is a catch, though: some of the oldest VGA cards don't work properly (black/white instead of color) or not at all because their BIOSes can't cope with fast CPUs.
Re: A question about speed
Posted on 2009-07-04, 16:45
My experiment CPU was a Celeron 500. Frogger: with CGA card (not an original one): a bit too fast. with other cards: way too fast. Wing Commander 1: with VGA 8-bit card (I think it was the 'VGA butterfly'): nice playable speed. with S3 Trio64 PCI: too fast. Alphawaves (strange shareware/freeware …
Re: PIII, Athlon mobo w ISA slot remommendation
Posted on 2009-07-04, 16:32
Did you look for a jumper on the board...
Re: A question about speed
Posted on 2009-07-04, 15:08
A lot of them can probably be fixed with a slow graphics card, too.
Re: PIII, Athlon mobo w ISA slot remommendation
Posted on 2009-07-04, 15:06
What's the name of the chip (under the sticker) ? Did you look for a write protect jumper or write protect option in BIOS?
Re: The game "Z" worked with DOSBox versions until 0.73
Posted on 2009-07-04, 14:54
It was possibly set to use the GUS sound card which is not active by default in 0.73.
Re: PIII, Athlon mobo w ISA slot remommendation
Posted on 2009-07-03, 22:23
The thing is, these flash chips have ID bytes that indicate the model and size of the flash chip. Different chip models need different programming algorithms. Now if the BIOS or Flash program wants to change the flash content it looks up this ID and decides which programming algorithm to use. If it …
Re: DOSBox performance on Mac OS X
Posted on 2009-07-03, 22:08
So what if you increase frameskip???
Re: PIII, Athlon mobo w ISA slot remommendation
Posted on 2009-07-03, 20:49
If you can't find a working flash utility you'd probably have to hotswap with a known flash chip.
Re: Dosbox .73 vista fullscreen issue
Posted on 2009-07-03, 19:51
Could be some program in your tooltray.
Re: vgaonly mode and dynamic cpu core
Posted on 2009-07-03, 13:19
The special effects in some demos tend to be a bit more stable with normal core. But it's not too bad in dynamic core either. With higher cycles the dynamic core also gets better.
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