In 1982 I was in love with the 68000. I built a 10 MHz wirewrap board that had 48 chips from memory and used a 68010 chip. It had 4K static ram. My main compute

In 1982 I was in love with the 68000. I built a 10 MHz wirewrap board that had 48 chips from memory and used a 68010 chip. It had 4K static ram. My main computer was a Heathkit Z80, 2 MHz. I had to write an assembler for the 68000 in Pascal, my brother built an eeprom programmer. Using my assembler I wrote a minimal monitor to transfer code from the Z80 via a parallel port and execute it. To talk to the 68000 I had to build a parallel port board, which I made by designing a board with tape strips and photo lithography and etching. It was single sided. When it came to testing it. The parallel port board didn’t work, I surmised that it was transmission line problems so I added rs232 driver chips to the board. This approached worked. In order to use the parallel port board I had to change the I/O space mapping of the H89. This was controlled by fuse link proms. I had two of these I ordered from the states. But first we had to build a fused link prom burner and write a program that ran on a Motorola 6800 D2 evaluation kit to control the burner. Luckily this worked on the first run. Then eventually. The small bootstrap program for the 68000 also worked on the first run. Phew! We were blown away by the speed of this thing. But I could only run small programs on it in 4K. So… I then started to design and build a 256K memory board that used a Texas Instruments dynamic memory controller. Unfortunately this never worked at all. In hindsight I’m kinda amazed I got as much to work as I did. Consequently my scores at University were not that good that year and I had to do a repeat year. And horror of horrors when I moved from New Zealand to Europe my parents moved house and threw this and much more away. Gasp… well, I guess I had been away for more than 10 years :-(