INSTRUCTION SETS3F80JB

SB1 — Select Bank 1

SB1

Operation: BANK 1

The SB1 instruction sets the bank address flag in the FLAGS register (FLAGS.0) to logic one, selecting bank 1 register addressing in the set 1 area of the register file. (Bank 1 is not implemented in some KS88-series microcontrollers.)

Flags:

No flags are affected.

 

 

 

Format:

 

 

 

 

 

 

 

 

 

 

Bytes

Cycles

Opcode

 

 

 

 

 

 

(Hex)

 

 

opc

 

1

4

5F

Example:

The statement

 

 

 

 

SB1

 

 

 

sets FLAGS.0 to "1", selecting bank 1 register addressing, if implemented.

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Image 204
Samsung S3F80JB manual SB1 Select Bank