Samsung C8274X Manuel D’Utilisation

In Indirect Register (IR) addressing mode, the content of the specified register or register pair is the address of the 
operand. Depending on the instruction used, the actual address may point to a register in the register file, to 
program memory (ROM), or to an external memory space (see Figures 3-3 through 3-6).  

You can use any 8-bit register to indirectly address another register. Any 16-bit register pair can be used to 
indirectly address another memory location. Please note, however, that you cannot access locations C0H–FFH in 
set 1 using the Indirect Register addressing mode. 

dst

Address of Operand

used by Instruction

OPCODE

ADDRESS

8-bit Register

File Address

Point to One

Register in Register

File

One-Operand

Instruction

(Example)

Sample Instruction:

RL

@SHIFT

;    Where SHIFT is the label of an 8-bit register address

Program Memory

Register File

Value used in

Instruction Execution

OPERAND