Jay R. Jaeger
We just returned from France! We booked a cruise based on a mailing from the Wisconisin (the *real* UW) Alumni Association late in 2024. The cruise took place in October, 2025. We had a great time! Overview The cruise was organized and managed by AHI Travel (AHI), an organization operating out of Illinois, in coordination Continue reading "France: Grand Seine River Normandy Passage Cruise"
I learned today that Professor Marleau passed away in 2021. I took a couple of courses from him. If I remember correctly, the first was ECE 331 State Space Systems Analysis. It was hard. Then, the next summer, in 1972, I did an independent study course with him working on very rudimentary computer graphics software. Continue reading "In Memoriam: Professor Richard Marleau"
Overlapped Tape I/O is generally working OK now. Getting that to work involved two things. Firstly, I needed a delay corresponding to the tape inter-record gap time (though not nearly that long) so that the several instructions that the diagnostic runs through before it tests for an overlapped condition would occur while an I/O Overlap Continue reading "IBM 1410 FPGA: Overlapped I/O Fix"
The vast majority of errors noted by the tape diagnostic T020C related to wrong length record errors, particularly when a tape operation writes from the last character of storage (39999 in my current 40K implementation), usually starting at location 39990. The current FPGA from the ALDs implementation does not create an error stop, it simply Continue reading "IBM 1410 FPGA: Wrong Wrong Length…
Seeing that some of the problems that I had identified with the Tape Adapter Unit (TAU) implementation could be or might be traceable back to the fact that I was using a 115,200 bps serial over USB to communicate between the 1410 FPGA implementation and the PC side support program, I decided to look at Continue reading "IBM 1410 FPGA: From USB Serial to UDP over Ethernet"
In May of 2024, I turned my attention to Tape I/O. On a real IBM 1410, this I/O would be routed through an IBM 1414 I/O Synchronizer (Model 1, 2 or 7, also known as Tape Adapter Units (TAUs). However, there were two issues with that for me. Firstly, I do not have ALDs for Continue reading "IBM 1410 FPGA: TAU Not So Fast"
Top Line I ran into to major issues in getting my Xiegu X6100 WiFi/WLAN to work on my network under APP version 1.1.9, Sept 14 2024. Firstly, a minor complaint (well, maybe pretty major), I found that the operation of the various buttons in the WLAN section can be very confusing. Here is what some Continue reading "Xiegu X6100 WiFi Adventures"
I learned that my friend R. Hannes Beinert ( Hannes ) passed away during the first day of January, 2024. As he was about eight years my junior, this was quite a shock. Although we had not been in contact for a few years, I still counted him among my friends, and I will miss him. In Continue reading "In Memoriam: R. Hannes Beinert"
The next issue to fix was another instruction check, this one after a console input instruction finished where the number of input characters was less than or equal to the number of expected input characters. The basic problem was that as I/O was ending, the I CYCLE CTRL signal goes active while E CH UNOVERLAP Continue reading "IBM 1410 FPGA: Input Check"
As mentioned in the previous post, during testing of the 1401 compatibility of the IBM 1410 I discovered that console input was not working properly for the machine in either 1410 or 1401 mode. The 1411 CPU would accept the characters, but only the first was entered into storage (if that), and pressing Inquiry Release Continue reading "IBM 1410 FPGA: No. 5 sez: Need More Input"