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2.3
Programming Model
This section explains the CPU registers that are essential for programming. The CPU
registers are classified into the following two groups:
• General-purpose registers
• Special registers
General-Purpose Registers
Figure 2.3.1 shows the configuration of general-purpose registers.
Special Registers
Figure 2.3.2 shows the configuration of special registers.
Figure 2.3-1 Configuration of general-purpose registers
R 0
R 1
R 12
R 13
R 14
R 15
32 bits
C
A
F
P
S
P
2.3 Programming Model
[Initial value]
XXXX XXXX
H
XXXX XXXX
H
0000 0000
H
33
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