Samsung S3F80JB - Manual (Page 203)

S3F80JB INSTRUCTION SET
6-75
SB0
— Select Bank 0
SB0
Operation: BANK
← 0
The SB0 instruction clears the bank address flag in the FLAGS register (FLAGS.0) to logic zero,
selecting bank 0 register addressing in the set 1 area of the register file.
Flags: No flags are affected.
Format:
Bytes Cycles Opcode
(Hex)
opc 1 4 4F
Example: The statement
SB0
clears FLAGS.0 to "0", selecting bank 0 register addressing.