Table of Contents
Advertisement
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 :
Assuming that "FF
20
Ze r o Pa g e In d ir e c t
Zero Page Indirect Absolute
Specifies the address in a memory location as the
jump destination address. The address in the memory
location is determined by the following:
(a) Operand is used as the low-order byte of an
address in the Zero Page memory location and
00
as the high-order byte.
16
(b) The contents of the address in the Zero Page
memory location is used as the low-order byte
and the contents of the next Zero Page memory
location as high-order byte.
(c) The high-order and low-order bytes in step b
together form the address of the memory location.
JMP, JSR
Mnemonic
∆
∆
JMP
($45)
Data II (1E
Zero page
indirect
designation
Op-code (B2
Operand (45
" for Data I, and "1E
16
Machine code
Memory
00
16
Zero page
Data I (FF
)
16
45
16
)
16
46
16
FF
16
)
16
)
16
∗
Jump
Address to be
1EFF
16
executed next
" for Data ll are stored in advance.
16
Addressing mode
B2
45
16
16
Absolute
designation
Advertisement
Table of Contents
