S3C8245/P8245/C8249/P8249 ADDRESSING MODES
3-5

INDIRECT REGISTER ADDRESSING MODE (Continued)

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

Figure 3-5. Indirect Working Register Addressing to Register File