Zup wrote:There is a packaging error in v11: mda.rom should be in the roms directory.Copy or move that file and that computer will work.
About XTs, they should not support more han 640Kb unless equipped with EMS. In real life that means installing a memory expansion. So, unless a XT clone had onboard support for EMS or Sarah Walker add some kind of EMS card emulation, that límite makes sense.
Working now as you mentioned (apologies, I'm unfortunately not that clued up on how all the different components fit together, but luckily I understand my way around DOS and the older generation PC's).
Totally agree on your second point. Should probably have elaborated a bit more to say that I also agree of it being limited to 640KB, since most XT's didn't support more than that in real life.
But, great work so far. It's nice to see the boot up screen on an Olivetti XT PC again. It brings back some memories, since our very first PC was an Olivetti M19, which had a similar boot up screen.
Just another point (already mentioned a bit earlier in this thread).
The emulator does seems to run slightly faster than the real world CPU's.
I performed a quick benchmark on a Cyrix 486DLC 40 MHz and, using NSSI 0.60, it runs between an Intel 486DX 33 MHz & an AMD 486DX 40 MHz. In real life, my Cyrix 486DLC 40 MHz runs just below that of an Intel 486DX 33 MHz, but it's still very close (I'm unable to run NSSI 0.60 on an Intel 486DX 33 MHz - halts at the co-processor check).
Same also applies to an Intel 386DX 33 MHz & an AMD 386DX 40 MHz. Runs slightly faster on the NSSI 0.60 CPU benchmark than a real life CPU.
I'm not having much luck running Landmark 2.0 (it just freezes). I'll see what happens if I run Norton Sysinfo 8.0.
Just another question: Under the Floppy drive selection (Drive A: or Drive B:), what does the 3-mode & Dual RPM floppy drives mean? Under which configurations would they be the best to use?