new_castle_j
Experienced Member
Hello All,
I've been tinkering with an S-100 board that is an IBM PC Clone. After receiving some very valuable help from a friend, we've gotten to the point where there's output to the CGA monitor showing the BIOS messages. There's errors regarding the keyboard being dead and un-implemented interrupts. I'm posting the disassembly of the ROM on this forum and am looking for suggestions as to what may be causing these errors. What is the ROM doing to test for the keyboard? Attached is also a screenshot of what gets output to the screen, any feedback appreciated.
I've been tinkering with an S-100 board that is an IBM PC Clone. After receiving some very valuable help from a friend, we've gotten to the point where there's output to the CGA monitor showing the BIOS messages. There's errors regarding the keyboard being dead and un-implemented interrupts. I'm posting the disassembly of the ROM on this forum and am looking for suggestions as to what may be causing these errors. What is the ROM doing to test for the keyboard? Attached is also a screenshot of what gets output to the screen, any feedback appreciated.