15 Apr
2005
15 Apr
'05
01:48
Stanley Long wrote:
Look at the 8080/8086 command set; it was orderly when listed in octal groupings.
Quite so. That's what made it so easy to remember. Lessee now. The move immediate commands were 07x and the register to register commands were 1xx, where: Accumulator = 7 B register = 0 C = 1 D = 2 E = 3 H = 4 L = 5 and memory =6. I've still got some of the instruction set references here (somewhere). I often used the Scelbi 8080 Pocket Reference.