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Chapter 18 Instruction Operations
18
MOV
SEL
NOP
EI
DI
Operation
Mnemonic Operand No. of
bytes
Flags
STBC, #byte 4 STBC byte
RBn 2 RBS1 – 0 n, n = 0 – 3
1 No operation
1 IE 1 (Enable interrupts)
1 IE 0 (Disable interrupts)
ZACCY
(14) CPU control instructions: MOV, SEL, NOP, EI, DI