ZiLOG eZ80

eZ80
®
CPU
User Manual
UM007714-0908 CPU Instruction Set
217
LD (Mmn), IX/Y
Load Indirect
Operation
(Mmn) ← IX/Y
Description
The CPU stores the contents of the multibyte Index Register, IX or IY, in the memory
location specified by 16- or 24-bit constant
Mmn .
Condition Bits Affected
None
Attributes
Zilog recommends against using the .SIL and .LIS suffixes with this instruction. The .SIL
instruction fetches a 24-bit value, Mmn. However, this instruction ignores the upper byte
and uses address {MBASE, mm, nn} instead. The .LIS instruction fetches a 16-bit value,
mn . However, the .LIS instruction does not use the MBASE value. Instead, it uses address
{00, mm, nn}.
Mnemonic Operand
ADL
Mode Cycle Opcode (hex)
LD (mn),IX 0 6 DD, 22, nn, mm
LD (Mmn),IX 1 8 DD, 22, nn, mm, MM
LD.SIS (mn),IX 1 7 40, DD, 22, nn, mm
LD.LIL (Mmn),IX 0 9 5B, DD, 22, nn, mm, MM
LD (mn),IY 0 6 FD, 22, nn, mm
LD (Mmn),IY 1 8 FD, 22, nn, mm, MM
LD.SIS (mn),IY 1 7 40, FD, 22, nn, mm
LD.LIL (Mmn),IY 0 9 5B, FD, 22, nn, mm, MM
Note: