3 ms·

'2716 EPROM' was a 16K (2kb x 8) EPROM. Which customer/sector was your project intended for?

• mytailorisrich 3y ago
  Yes, the xx(x) number in the 27xx(x) EPROM series indicates the kilo (1024) bits. So indeed this is 2 KiB. This sounds OK for the application described, especially as it was no doubt written in assembly and obviously bare metal. When it does not fit but not far off it's when the fun of code optimisation kicks in ;) Edit: Very interesting how easily available they still seem to be according to Google.
  • smcin 3y ago
    Ok I was trying to help you communicate "8-bit CPU which had 14 registers, no RAM, tiny EPROM, no persistent storage/disk/SSD". And you were doing function calls.
  • mark-r 3y ago
    My first personal computer was a Z80 with a 2716. Into that 2K I fit basic monitor commands (dump/store memory), a terminal emulator with VT52 escape sequences, and a floppy boot loader. Got very good at squeezing out every last byte.
• HeyLaughingBoy 3y ago
  Don't remember. I do remember that I didn't get paid. I was so excited to have a freelance job (don't remember how I got the customer either) that I jumped right into it and worked heads down for a couple weeks. Then when I went to tell the customer that I was done and ready to ship, I couldn't reach him. Finally heard back from him about 6-12 months later and he was surprised that I had been working on it without hearing back from him and that he no longer needed the product. And that, kids, is how I learned to get at least partial payment upfront.