Zilog Z8F0130 - Manual (Page 59)

eZ8
™
CPU Core
User Manual
UM012820-0810 Addressing Modes
37
Immediate Data Addressing
Immediate data, addressing symbol IM, is considered an addressing mode
for this discussion. It is the only addressing mode that does not indicate a
register or memory address as the operand. The operand value used by the
instruction is the value supplied in the operand field itself. Because an
immediate operand is part of the instruction, it is always located in the
Program Memory address space (see
Figure 16 ).
Figure 16. Immediate Data Addressing
Program Memory
Two Operand
Instruction
(Example)
Op Code
dst
Immediate
Data
Register File
12-bit address is
{RP[3:0], dst[7:0]}
Destination
Register
8-bit data written
to Destination