Indirect Register (Ir) Addressing Mode (Continued) - Samsung S3F84B8 User Manual

S3F84B8_UM_REV 1.00

3.5 INDIRECT REGISTER (IR) ADDRESSING MODE (CONTINUED)

4-bit
Working
Register
Address
Sample Instruction:
OR
Program Memory
dst src
OPCODE
Working Register
R3, @R6
Figure 3-5 Indirect Working Register Addressing to Register File
Register File
MSB Points to
RP0 or RP1
RP0 or RP1
~
3 LSBs
Point to the
ADDRESS
(1 of 8)
~
Value used in
OPERAND
Instruction
3-5
3 ADDRESSING MODES
Selected
RP points
to start fo
~
working register
block
~