Linear Addressing - Fujitsu F2MCTM-16LX Hardware Manual

2.4

Linear Addressing

There are 2 types of linear addressing:
• 24-bit operand specification: Directly specifies a 24-bit address using operands.
• 32-bit register indirect specification: Indirectly specifies the 24 low-order bits of a 32-
24-bit Operand Specification
Figure 2.4-1 shows an example of 24-bit operand specification. Figure 2.4-2 shows an example of 32-bit
register indirect specification.
Figure 2.4-1 Example of Linear Method (24-bit operand specification)
JMPP 123456H
Old program counter
+ Program bank
New program counter
+ Program bank
Figure 2.4-2 Example of Linear Method (32-bit register indirect specification)
MOV A, @RL1+7
bit general-purpose register value as the address.
17 452D
12
3456
XXXX
Old AL
003A
New AL
17452D
H
123456
H
090700
H
7
RL1
(The high-order 8 bits are ignored.)
CHAPTER 2 CPU
JMPP 123456H
Next instruction
3A
240906F9
33