Hi, I am in the process of writing an assembler on a custom homebuilt TTL computer. The computer does not have a CPU. The control logic is hardwired and uses the 74F181 ALUs for math and logic...
they are essentially the guts of a video terminal on a CRU card
http://bitsavers.org/pdf/ti/terminal/crt/945423-9701B_911_Terminal_Installation_and_Operation_Oct81.pdf
Check if any of the switches inside the floppy drive are stuck or broken off (those left and right at the front). The PC may not notice a disk change in such a case.
PS/2 floppy drives are notorious for going bad. If you're certain both disks are good, searching "PS/2 floppy drive repair" should bring back a ton of results, ...too many to state here.
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Hi, I am in the process of writing an assembler on a custom homebuilt TTL computer. The computer does not have a CPU. The control logic is hardwired and uses the 74F181 ALUs for math and logic...
mmruzek Today, 04:53 AM