GMS81004 Datasheet, PDF (24/101 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 2. Function Description
CHAPTER 2. FUNCTION DESCRIPTION
2.1 REGISTERS
15
7
PCH
7
15
7
7
7
7
7
NV GB H
PCL
A
¡é
X
Y
SP
PSW
IZ
0
Program Counter
0
A-Register
0
YA (16bit Accumulator)
0
X-Register
0
Y-Register
0
Stack Pointer ¡Ø1
0
Program Status Word
¡é
C
¡Ø1 Stack Address
15
7
PCH
PCL
¡é
Fixed as 01XXh (=RAM 1page)
¡é
SP
2- 1
Carry Flag
Zero Flag
Interrupt Enable Flag
Half Carry Flag
Break Flag
G Flag
Overflow Flag
Negative Flag
0