VOGONS


Games With Build Engine

Topic actions

First post, by scat

User metadata
Rank Newbie
Rank
Newbie

It seems that games made on the Build engine don't run well in Dosbox.

Particularly Witchaven.

My problem is that it's way too slow. I try speeding up the cycles and slowing them down but it doesn't seem to do anything.

Reply 2 of 10, by scat

User metadata
Rank Newbie
Rank
Newbie

It helped a little, but it's still not even playable.

Reply 3 of 10, by h-a-l-9000

User metadata
Rank DOSBox Author
Rank
DOSBox Author

What's your computer?

1+1=10

Reply 4 of 10, by leileilol

User metadata
Rank l33t++
Rank
l33t++

it's playable here
hint: dosbox isn't targeted to run on pentium 2s

apsosig.png
long live PCem
FUCK "AI"

Reply 5 of 10, by scat

User metadata
Rank Newbie
Rank
Newbie

My computer is a Mac G4

Reply 6 of 10, by Snover

User metadata
Rank l33t++
Rank
l33t++

buy a new computer. that's way too old.

Yes, it’s my fault.

Reply 7 of 10, by scat

User metadata
Rank Newbie
Rank
Newbie

Are you sure getting a new computer is going to help increase the speed of Witchaven in Dosbox (which is a 486 emulator anyway)?

Reply 9 of 10, by frobme

User metadata
Rank Member
Rank
Member
scat wrote:

Are you sure getting a new computer is going to help increase the speed of Witchaven in Dosbox (which is a 486 emulator anyway)?

Instead of a snarky reply, I'll give you actual information, as you appear legitimately confused.

Yes, buying a faster computer can substantially increase the speed of your emulated game. There are two factors working against you:

1) The G4 Macs were all fairly slow compared to more modern processors in terms of absolute CPU power/memory performance

2) The G4 is a PowerPC architecture, which means it has to do substantial extra work when emulating a PC (Intel architecture). To make a long story short, the way the PowerPC organizes data in memory is opposite of that for an Intel proc, and the PPC doesn't speak the same "language" of opcodes the Intel processors do.

The good news is, even if you really want to stick with Mac, modern Macintoshes are made with Intel processors (that are quite a bit faster than your G4).

Although the 486 the game originally ran on is very slow comparitively, the amount of work required to emulate it is extremely high - think 10x-100x as hard - thus, the processor running the emulation can very much affect the speed of the game.

For comparison, my very modern Intel machine, which has a top end CPU and graphics system, performs about as well as a Pentium III in best case scenarios using DosBox. This is to be expected and in fact is fantastic performance on the part of DosBox itself.

-Frob

Reply 10 of 10, by wd

User metadata
Rank DOSBox Author
Rank
DOSBox Author

Instead of a snarky reply, i'll tell you that the reason why intel-based macs
are better suited for dosbox than ppc-based ones is because of the recompiler.