[cctalk] IBM 1410 FPGA Status - 1401 Mode

2023-08-05 Thread Jay Jaeger via cctalk
My IBM 1410 FPGA project now features a working 1401 mode as well, with the flip of a switch, exactly like the original IBM 1410. There are still a few real problems (e.g., Console I/O Input under program control doesn't seem to be working), a few minor issues involving console problems when d

[cctalk] IBM 1410 FPGA Status

2023-07-11 Thread Jay Jaeger via cctalk
Over the past couple of months I have been working on my FPGA implementation of the IBM 1410 1960's era pre System/360 system again. I am pleased to share that the CPU now passes a significant diagnostic, CU01, which tests almost all of the instructions, and also tests I/O with overlap and the