Samsung S3F80P5X User Manual page 53

S3F80P5_UM_ REV1.00
INDIRECT REGISTER ADDRESSING MODE (Continued)
4-bit
Working
Register
Address
Sample Instruction:
OR
Figure 3-5. Indirect Working Register Addressing to Register File
Program Memory
dst src
OPCODE
Woking Register
R3, @R6
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
ADDRESSING MODES
Selected
RP points
~
to start of
woking register
block
~
3-5