Samsung S3F80JB User Manual

Page 58

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S3F80JB

ADDRESSING

MODES

3-5

INDIRECT REGISTER ADDRESSING MODE (Continued)

dst

OPCODE

ADDRESS

4-bit

Working

Register

Address

Point to the

Woking 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 of
woking register
block

RP0 or RP1

MSB Points to

RP0 or RP1

~

~

~

~

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