Linear Addressing - Fujitsu MB90895 Series Hardware Manual

CHAPTER 3 CPU
3.1.4

Linear Addressing

The linear addressing has the following two types:
• Direct-addressing 24 bits by instruction
• Using lower 24 bits of 32-bit general-purpose register for address
I Linear Addressing by Specifying 24-bit Operand
Figure 3.1-5 Example of 24-bit Physical Direct Addressing in Linear Type
JMPP 123456
Old program bank
+Program counter
New program bank
+Program counter
I Addressing by Indirect-specifying 32-bit Register
Figure 3.1-6 Example of indirect-specifying 32-bit General-purpose Register in Linear Type
MOV A,@RL1+7
Old accumulator
New accumulator
RL1: 32-bit general-purpose register (long word)
26
H
10
452D
12 3456
(Upper 8-bit is ignored)
XXXX
003A
10452D
H
123456
H
RL1
+7
FF0700
H
JMPP 123456
H
Next instruction
FFFF06F9
H
3A
H