Chapter 2. Function Description
CHAPTER 2. FUNCTION DESCRIPTION
2.1 REGISTERS
15
7
0
PCH
PCL
Program Counter
A-Register
7
7
7
7
7
7
0
A
15
0
¡ é
YA (16bit Accumulator)
X-Register
0
X
Y
0
Y-Register
0
¡ Ø
1
SP
PSW
Stack Pointer
0
Program Status Word
¡ é
N
V
G
B
H
I
Z
C
Carry Flag
Zero Flag
Interrupt Enable Flag
Half Carry Flag
Break Flag
G Flag
Overflow Flag
Negative Flag
¡ Ø
1 Stack Address
15
7
0
PCH
PCL
¡ é
Fixed as 01XXh (=RAM 1page)
¡ é
SP
2 - 1