While cleaning up some old cupboards I found an old booklet from 198-something. At that tender age of fifteen-ish, instead of going to hockey practice or hanging out with other kids in the mall, I wrote Z80 assembly language programs with paper and a pencil; something that I had completely forgotten. I didn't have money for an assembler, so I painstakingly looked up the hex code equivalents for the mnemonics and then wrote a BASIC program to write those into memory.
My bedtime reading at the time was "The Complete Spectrum ROM Disassembly" - a book full of commented machine code. Which, in retrospect, was a bit sad, but on the other hand, it gave me a very complete understanding of how a computer works. And that has been very useful in my career.
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|"Main_blogentry_230213_1" last changed on 23-Feb-2013 14:59:25 EET by JanneJalkanen.|