GloriousCow

5 ms·

31.
by GloriousCow 5mo ago
nand2mario has made a Verilog implementation from it. It currently runs DOOM, but some of the more fiddly protected-mode bits prevent it from running full operating systems (besides DOS). I'm sure the bugs will get ironed out eventuall
32.
by GloriousCow 5mo ago
Replacing the RAM would probably be straightforward - on the CGA its only 16K, so only twice as big as the font ROM. It's slightly trickier, considering the address lines are row and column multiplexed, and there are eight sockets to t
33.
by GloriousCow 1y ago
Funny you mention that, I'm actually friends with twvd and we share a discord server and trade UI ideas as we both use the same GUI toolkit. Snow actually uses the disk image library I built for MartyPC. Inspired is a strong word. I di
34.
A cycle-accurate IBM PC emulator in your web browser(martypc.net)
158 points by GloriousCow 1y ago|25 comments
35.
by GloriousCow 1y ago
MartyPC brings cycle-accurate IBM PC emulation to your web browser. Run Area 5150 at 60fps on your phone! Almost every feature from the desktop version is present if practical: - View the realtime state of nearly every component of the syst
36.
Hide Photos on Floppies with a Flux Imager(github.com)
10 points by GloriousCow 2y ago|4 comments
37.
by GloriousCow 2y ago
This isn't necessarily a new technique, as black and white art has been put on floppies before: https://github.com/bzotto/picturedsk But the new wrinkle here is support for grayscale, meaning photos or other grays
38.
by GloriousCow 2y ago
For the ones that I make to look pretty, the data is colored in buckets of 8 bits, using the bit-count per byte to select a shade in 8 steps from 0-255. So there's at least 8 times less data than you would need. Then it is downsampled
39.
by GloriousCow 2y ago
Or when you win solitaire!
40.
PC Floppy Copy Protection: Xemag Xelok(martypc.blogspot.com)
10 points by GloriousCow 2y ago|5 comments
41.
by GloriousCow 2y ago
In this post in a series on PC copy floppy protections, we take a look at XEMAG duplication's "Xelok" scheme. Xelok was quite devious on the Apple II, implementing "fat tracks" that could not be produced with a conv
42.
PC Floppy Copy Protection: Vault Prolok(martypc.blogspot.com)
63 points by GloriousCow 2y ago|8 comments
43.
by GloriousCow 2y ago
An investigation into the infamous 80's copy protection scheme PROLOK that involved burning holes on diskettes. Also included is an interview with Quaid Software founder, Robert McQuaid. Vault sued Quaid Software for producing CopyWrit
44.
by GloriousCow 2y ago
EA's INTERLOCK protection (Marble Madness) uses deleted address marks.
45.
Emulating the Early Macintosh Floppy Drive(thomasw.dev)
91 points by GloriousCow 2y ago|42 comments
46.
by GloriousCow 2y ago
An in-depth dive into the Macintosh floppy drive system, including the fascinating IWM (Integrated Woz Machine) custom floppy controller. The level of fidelity to properly emulate the Macintosh disk drive is impressive, and this should be