Indirect Working Register Addressing To Register File - Samsung S3F80JB User Manual

S3F80JB
INDIRECT REGISTER ADDRESSING MODE (Continued)
4-bit
Working
Register
Address
Sample Instruction:
OR
Figure 3-5. Indirect Working Register Addressing to Register File
MSB Points to
Program Memory
dst src
Point to the
OPCODE
Woking Register
Value used in
R3, @R6
Register File
RP0 or RP1
RP0 or RP1
~
3 LSBs
ADDRESS
(1 of 8)
~
OPERAND
instruction
ADDRESSING MODES
Selected
RP points
~
to start of
woking register
block
~
3-5