eZ80
®
CPU
User Manual
UM007714-0908 CPU Instruction Set
224
LD r, (IX/Y+d)
Load Register
Operation
r ← (IX/Y+d)
Description
The
r
operand is any of the 8-bit CPU registers A, B, C, D, E, H, or L. The (
IX/Y
+
d
) oper-
and is an 8-bit value at the memory location specified by the contents of the Index Regis-
ter, IX or IY, added to the two’s-complement displacement
d
. This 8-bit value is written to
the specified
r
register.
Condition Bits Affected
None.
Attributes
jj identifies the A, B, C, D, E, H, or L register and is assembled into one of the opcodes
indicated in Table 68.
Mnemonic Operand ADL Mode Cycle Opcode (hex)
LD r,(IX+d)X 4 DD, jj, dd
LD.S r,(IX+d)1 5 52, DD, jj, dd
LD.L r,(IX+d)0 5 49, DD, jj, dd
LD r,(IY+d)X 4 FD, jj, dd
LD.S r,(IY+d)1 5 52, FD, jj, dd
LD.L r,(IY+d)0 5 49, FD, jj, dd
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