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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
