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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.