поясните команду SLL

[goblinish]

Shift Left Logical

как бы так

меня это смутило:
http://quasar.cpcscene.com/doku.php?id=iassem:calculs

CarrY<-Reg<-0

и SRL обратное.

и дальше:
http://www.z80.info/z80_faq.htm#Q-20

Q-32: What does SLL do?

Thomas Scherrer:

There are no SLL opcode in the Zilog official list, but
The block CB 30 - CB 37 (missing from the official list)
These instructions, usually denoted by the mnemonic SLL, Shift Left Logical, shift left the operand
and make bit 0 always one.

Try some of the official mnemonics below:

SLA = SHIFT LEFT ARITHMETIC register
SRA = SHIFT RIGHT ARITHMETIC register
SRL = SHIFT RIGHT LOGICAL register

надо дебаггером гонять и смотреть на результат, короче.

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