Another fun project for the day. I'm debugging this PCjr which won't boot - no POST, not even a beep.
It looks like the 8284A chip is not toggling the RESET pin on the 8088, so it doesn't run. I replaced a capacitor that feeds the 8284A but that had no effect. I can get the machine to boot if I pull the reset line low by hand. (Composite output is corrupted but RGB output is fine.)
I just need to find a source for 8284A chips. It looks like used is the only option.
more exceptional 50s style modern art on the cover of this 1983 ibm pcjr game by nasir gebelli of apple ii/final fantasy fame
ibm's in-house artist uncredited, sadly.
one nice touch of humanity in the illustration is the ink overdraw on the far right side, where the artist ran a ruled line from the bottom up to the hypotenuse of the cheese. these tiny "imperfections" add detail, flavour and warmth to what might otherwise be sterile design.
#ibm #pcjr #retroComputing #vintageComputer #dosGaming #design #illustration
Got to do some budgeting today.
It's extremely frustrating when I am ACTUALLY showing a #PCjr doing ACTUAL network things with #FujiNet, and I get maybe 100 views, and I see stupid shit like THIS:
FML.
Working on #msdos port of #fujinet battleship, viewing charset on #pcjr over network while hacking on the code in #emacs.
#fujinet makes #retrocomputing and #retrogaming #gamedev even better.
Used the #FujiNet enabled tile editor I wrote to draw the graphics for the #msdos version of FujiNet Battleship on my #PCjr. The graphics were exported directly onto my development PC over the network, right into #emacs.
I needed a tile editor for doing our MS-DOS #gamedev.
I decided to make one that could send its data using a #FujiNet attached to my #PCjr, to my dev system.
#atari8bit #apple2 #coco #c64 #plus4 #commodore #trs80coco #msdos #pcjr
All playing the same networked game. Together.
More to come.
That's FujiNet.
(website: fujinet dot online)
mbbrutman
vga256
Thomas Cherryhomes
ℒӱḏɩę 💾☮∞🎶♲☀🔋