Graphical effects for MS-DOS implemented in 32-bit x86 Assembly.
For some historical background, have a look at my other repository.
I created a video featuring the effects. There is no sound! Make sure to watch at 720p, and use playback speed of 2x if needed, as some parts may be quite boring:
To build and run the graphical effects, you need a PC running some version of DOS. It may also be a DOS VM or a DOS emulator, for example DosBox or PCem.
Secondly, you need Borland Turbo Assembler 5.0.
Once you have the assembler installed, start from building the common modules. Simply run make in the common folder:
c:\mgssmbly\common > c:\tasm\bin\make.exe -f makefile
Then, repeat the above for each effect. Note that the paths to TASM and TLINK in the makefile should match your Turbo Assembler installation folder.
There are six executable files. Since they make use of protected mode, you need a DPMI host.
You can download CWSDPMI at this location.
Unpack the archive and copy CWSDPMI.EXE into the main folder. Start CWSDPMI.EXE first, and immediately after start the executable of your choice. I know, this is inconvenient, but can be automated with a simple batch file.
If you are using Win9x, do not bother with CWSDPMI, because Windows has its own DPMI facility. You can start the effects directly.
When watching an effect, press [escape] to exit to DOS.
- Implement timing based on the PC timer, not on VGA vertical retrace
- Combine the effects into one demo
- Use an embedded DOS extender