Samsung S3F80JB - Manual (Page 204)

INSTRUCTION SET S3F80JB
6-76
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.