Zilog Z08470 Manual do Utilizador Página 113

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UM008007-0715 Z80 Instruction Description
Z80 CPU
User Manual
101
LD dd, (nn)
Operation
ddh (nn + 1) ddl (nn)
Op Code
LD
Operands
dd, (nn)
Description
The contents of address (nn) are loaded to the low-order portion of register pair dd, and the
contents of the next highest memory address (nn + 1) are loaded to the high-order portion
of dd. Register pair dd defines BC, DE, HL, or SP register pairs, assembled as follows in
the object code:
The first n operand after the op code is the low-order byte of (nn).
Condition Bits Affected
None.
Pair dd
BC
DE 01
HL 10
SP 11
M Cycles T States 4 MHz E.T.
6 20 (4, 4, 3, 3, 3, 3) 5.00
11 0 01111
ED
01 d 110d1
n
n
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