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Amstrad and Spectrum personal computers also had Z80 inside. I remember struggling with LDIR/LDDR instructions with Amsost devpac assembler... Btw. We called

by eb0la 10y ago

Amstrad and Spectrum personal computers also had Z80 inside. I remember struggling with LDIR/LDDR instructions with Amsost devpac assembler... Btw. We called that machine code programming back in the 80s.

qwertyuiop924 10y ago
Really? many commenters here are talking about actually entering raw hex (and calculating branch offsets by hand (!)).
- eb0la 10y ago
  In my case the pain pointi was loading the assembler from tape drive for about 5 minutes. Fortunately the assembler did the offset calculation for me. If you coded something in basic with some machine code, you had to type a lot of DATA statements in decimal or hex. This was then read and POKE'd in memory and CALLed from basic. Quite tedious.
  - qwertyuiop924 10y ago
    Yeah, but a lot of people actually didn't have assemblers at the time.