New answers tagged emulation
6
The DOS won't work because it's only 8kb long. The KERNAL won't work because it too is only 8kb long.
Turns out, dos1541 is really a misnomer because VICE needs both ROMs in the same file, and expects that file to be exactly 16kb long (16384 bytes). If you have both the dos and the kernal, you can concatenate the two to produce the necessary file with a ...
0
It seems there is.
There is an open source C library by John Elliot for working with a selection of disks and disk image formats called LibDsk, active as of August 2019. Among the supported formats it includes
.DSK files, as used in CPCEMU, JOYCE and other Sinclair/Amstrad emulators.
The JOYCE emulator mentioned is by the same author.
The author added ...
2
For purposes of emulating program execution using only new hardware, I don't think inclusion of vintage components would be particularly helpful except in cases where behavior would be affected by aspects of the original that aren't fully understood, or could vary in "interesting" ways (e.g. because waving one's hand over the machine would affect the value ...
3
There is currently lots of development around FPGA implementation of old game consoles and computers.
A FPGA is a reconfigurable chip which can be programmed to implement any logic circuit, including CPUs, video controllers, .... It is now possible to implement NES, SNES, Genesis... on affordable hardware (<200$).
Compared to emulators, an FPGA ...
2
No, and very probably no.
Emulating a 6502 cycle-exact and in real time is well within reach of even a 30 year old 486, so there is nothing to be gained by using a real 6502, or modern successor.
As for "the PPU", that's a bit vague (what are its capabilities?), but all of the standard 80's video chips have been emulated quite well for over a decade. You ...
5
Well, if your computer had a 6502 and the PPU & PSG (for the sound) chips, then it would be basically a NES, so there would be little left to emulate.
Now if your computer only had the 6502, and the rest to emulate, no it wouldn't change, since nowadays emulation cores for 6502 are cycle exact, so it wouldn't be that interesting to have a real 6502 in ...
2
The Disk Masher System entry on the Archive Team wiki suggests the following tools:
xDMS (Public Domain, portable C source)
dms111 (Original Amiga software)
Ancient Format Decompressor (decompresses to ADF)
The linked xDMS page claims...
Supports decompression of files compressed using all known DMS
compression modes, including old ...
14
There can not be an EGA emulator for many reasons.
Emulating CGA works, because in graphics mode, Hercules has a 64k frame buffer at address B0000h - BFFFFh, and for a single page, only 32k from address B0000h is displayed. The CGA has a 16k frame buffer at B8000h - BBFFFh, which fits inside the frame buffer provided by the Hercules card.
Therefore what ...
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