Questions tagged [emulation]
Processes and software for emulating retro hardware (e.g. MAME, QEMU). NOT EVERY EMULATION QUESTION IS ON-TOPIC; SEE TAG WIKI.
186 questions
7 votes
2 answers
903 views
Extract virus bootsectors from Spy Format Elite
This is a stand-in for this original question as David Johnson is unlikely to provide edits to it that will allow re-opening. The Spy Format Expert utility written in 1990 by the "Spy Network&...
- 34.9k
3 votes
0 answers
185 views
ClearPath OS 2200 Express
Apparently Unisys started to offer ClearPath OS 2200 Express around 2016, an system that would also allow to emulate the Univac 1100/2200 family: London, UK March 30, 2016 – Unisys Corporation today ...
- 34.9k
1 vote
0 answers
144 views
Convert PCem configuration to an executable? [closed]
I've built a Windows 98 machine in the PCem emulator. I have many programas installed a several files created there. I also personalized it, changed the background etc... Now I want to send this to a ...
- 111
3 votes
1 answer
306 views
Amiga Forever fullscreen mode is display on second monitor instead of first monitor [closed]
I'm using Amiga Forever on Windows 11 with two monitors. Now I have a recent new problem with the fullscreen mode in Amiga Forever (It used to work correctly). If the Amiga Forever program is on ...
- 458
5 votes
0 answers
2k views
What is the functional difference between all the DOSBox variants? [closed]
Looking to virtualise a DOS system for software research purposes, I've come across a number of solutions. While I understand the difference between the DOSBoxes and emulators like Bochs or 86Box or ...
- 59
1 vote
3 answers
954 views
What is the layout of Atari VCS/2600 ROM files?
I understand the CPU had fewer address lines than a 6502, limiting it to 8kb but that the Atari hardware didn't connect one line thus limiting cartridge access to 4kb. I further understand that the ...
- 8,214
9 votes
2 answers
2k views
How does the 8086 jump instruction work when the target address overflows?
For educational purposes, I'm developing my own software emulator for the 8086 microprocessor with VGA/MCGA support. Although it's far from complete, it's advanced enough to start using a BIOS (though ...
- 201
1 vote
3 answers
1k views
Understanding the Need for Positive Sync Polarities in Sony PVM Monitors
Understanding the Need for Positive Sync Polarities in Sony PVM Monitors Note: This post has been edited several times during its lifetime, and some questions may have already been answered. I'm in ...
- 71
10 votes
2 answers
582 views
1984 accounting software running in VirtualBox fails to print property to an LPT passthrough, but other software seems fine
My family still runs their business with an accounting package from 1984. The computer running it is old enough to drink. I’m trying to move it to a virtual machine. I’ve purchased a System 76 ...
- 101
3 votes
1 answer
823 views
What do the pins D0-D7 on the Intel 8080 exactly signify?
I am currently trying to create a FPGA styled simulator of the 8080 in C. I have a couple of questions regarding the D0-D7 pins. As far as I can see the D0-D7 lines are used in order to store data (a ...
- 31
1 vote
0 answers
281 views
Windows 3.11 in DOSBox-X says that “Your network adapter MS$NE2CLONE is not working properly” [closed]
I had networking working on Windows 3.11 previously, now I am getting the error "Your network adapter MS$NE2CLONE is not working properly". I tried reinstalling all the files, changing ...
- 1,268
2 votes
3 answers
812 views
Z80 to 68000 translator for CP/M
CP/M was mostly portable across systems but most of them were z80 based. It was ported to 8086, 68000 and maybe more but without binary compatibility. No z80 systems that wanted CP/M compatibility ...
- 1,555
6 votes
0 answers
268 views
Where can I find information on old Kontron emulators?
Way back in the mid-80s, I worked as a programmer for the Apple II family, Commodore and Atari machines. I remember programming them using a big intimidating box branded Kontron stacked on top of my ...
- 692
6 votes
3 answers
1k views
How do I make an Apple II disk image with the sectors in physical order?
As far as I understand: a .do or .dsk file extension indicates that the sectors in a disk image are in AppleDOS order (i.e. the physical sectors are in order 0, 13, 11, 9 etc). a .po file extension ...
- 1,546
6 votes
2 answers
821 views
BASIC line input buffer location on ZX Spectrum
I'm currently writing a ZX Spectrum emulator (I know there are plenty, but it's a project). I'm having an issue where it keeps repeating the last key press even though I know the port lines have been ...
- 171