Samsung S3F80JB manual Indirect Working Register Addressing to Register File

Models: S3F80JB

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S3F80JB

ADDRESSING MODES

 

 

INDIRECT REGISTER ADDRESSING MODE (Continued)

 

 

 

Program Memory

 

4-bit

 

 

 

 

 

 

 

 

 

 

Working

 

 

 

 

 

 

 

dst

src

 

 

Register

 

 

 

 

OPCODE

 

Address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sample Instruction:

OR

R3, @R6

 

Register File

 

MSB Points to

 

 

RP0 or RP1

RP0 or RP1

 

 

 

 

 

Selected

~

~

RP points

to start of

 

 

woking register

3 LSBs

 

block

 

 

Point to the

ADDRESS

 

Woking Register

 

 

 

(1 of 8)

 

 

~

~

 

Value used in

OPERAND

 

instruction

 

 

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

3-5

Page 58
Image 58
Samsung S3F80JB manual Indirect Working Register Addressing to Register File