Addressing; B.1 Addressing - Fujitsu F2MC-8L F202RA Hardware Manual

B.1

Addressing

2
For the F MC-8L, the following 10 kinds of addressing modes are supported:
• Direct addressing
• Extended addressing
• Bit direct addressing
• Index addressing
• Pointer addressing
• General-purpose register addressing
• Immediate addressing
• Vector addressing
• Relative addressing
• Inherent addressing
■
Explanation on Addressing
● Direct addressing
The addressing, which is indicated by dir in the instructions list, is used for accessing the area from 0000
to 00FF
H
operand.
Figure B.1-1 shows an example.
● Extended Addressing
The addressing, which is indicated by ext in the instructions list, is used for accessing the entire area of 64
KB. In this addressing, specify the higher one byte of the address with the first operand and the lower one
byte with the second operand.
Figure B.1-2 shows an example.
MOVW A, 1 2 3 4
. In this addressing, the higher one byte of the address is 00
Figure B.1-1 Example of Direct Addressing
MOV 12H, A
001 2
Figure B.1-2 Example of Extended Addressing
H
1 2 3 4 H
1 2 3 5 H
A 4 5
4 5
H
H H
5 6
H
A 5 6 7 8
H
7 8
H
. Specify the lower one byte with the
H
H
383