GMS800 Series
HYUNDAI Micro Electronics
C. INSTRUCTION
C.1 Terminology List
Terminology
A
X
Y
PSW
#imm
dp
!abs
[]
{}
{ }+
.bit
A.bit
dp.bit
M.bit
rel
upage
n
+
x
Accumulator
X - register
Y - register
Program Status Word
8-bit Immediate data
Direct Page Offset Address
Absolute Address
Indirect expression
Register Indirect expression
Register Indirect expression, after that, Register auto-increment
Bit Position
Bit Position of Accumulator
Bit Position of Direct Page Memory
Bit Position of Memory Data (000
H
~0FFF
H
)
Relative Addressing Data
U-page (0FF00
H
~0FFFF
H
) Offset Address
Table CALL Number (0~15)
Addition
0
Bit Position
Description
Upper Nibble Expression in Opcode
y
−
×
/
()
∧
1
Bit Position
Upper Nibble Expression in Opcode
Subtraction
Multiplication
Division
Contents Expression
AND
OR
Exclusive OR
NOT
Assignment / Transfer / Shift Left
Shift Right
Exchange
Equal
Not Equal
∨
⊕
~
←
→
↔
=
≠
viii
DEC. 1999