S3F84B8_UM_REV 1.00
6.3.61 SB0 — SELECT BANK 0
SB0
BANK 0
Operation:
The SB0 instruction clears the bank address flag in FLAGS register (FLAGS.0) to logic zero and
selects bank 0 register addressing in set 1 area of the register file.
No flags are affected.
Flags:
Format:
opc
The statement SB0 clears FLAGS.0 to "0" and selects bank 0 register addressing.
Example:
6.3.62 SB1 — SELECT BANK 1
SB1
BANK 1
Operation:
The SB1 instruction sets the bank address flag in FLAGS register (FLAGS.0) to logic one and
selects bank 1 register addressing in set 1 area of the register file. (Bank 1 is not implemented in
some S3C8-series microcontrollers.)
No flags are affected.
Flags:
Format:
opc
The statement SB1 sets FLAGS.0 to "1" and selects bank 1 register addressing, if implemented.
Example:
Bytes
Cycles
1
Bytes
Cycles
1
6-74
6 INSTRUCTION SET
Opcode
(Hex)
4
4F
Opcode
(Hex)
4
5F