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IN STRUC TION S
Ad d r e s s in g m o d e :
F u n c tio n :
In s tr u c tio n s :
Ex a m p le :
(A) ← (A) + (C) + XX
Ze r o Pa g e
Zero Page
Specifies the contents in a Zero Page memory
location as the data for the instruction. The address
in the Zero Page memory location is determined by
using Operand as the low-order byte of the address
and 00
as the high-order byte.
16
ADC, AND, ASL, BIT, CMP, COM, CPX, CPY, DEC,
EOR, INC, LDA, LDM, LDX, LDY, LSR, ORA, ROL, ROR,
RRF, SBC, STA, STX, STY, TST
Mnemonic
∆
∆
ADC
$40
16
Machine code
Memory
Zero page
Data(XX
)
16
Op-code(65
)
16
Operand (40
)
16
Addressing mode
65
40
16
16
00
16
40
16
FF
16
Zero page
designation
9
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