ABOV SEMICONDUCTOR MC81F4204 - 26. Instruction Set; 26.1 Terminology List

MC81F4204
April 24, 2012 Ver.1.41 143
26. INSTRUCTION SET
26.1 Terminology List
A Accumulator
X X - register
Y Y - register
PSW Program Status Word
#imm 8-bit Immediate data
dp Direct Page Offset Address
!abs Absolute Address
[ ] Indirect expression
{ } Register Indirect expression
{ }+ Register Indirect expression, after that, Register auto-increment
.bit Bit Position
A.bit Bit Position of Accumulator
dp.bit Bit Position of Direct Page Memory
M.bit Bit Position of Memory Data (000H~0FFFH)
rel Relative Addressing Data
upage U-page (0FF00H~0FFFFH) Offset Address
n Table CALL Number (0~15)
+ Addition
x Upper Nibble Expression in Opcode when it is even number (bit7~bit5, bit4=0)
y Upper Nibble Expression in Opcode when it is odd number (bit7~bit5, bit4=1)
−
Subtraction
×
Multiplication
⁄
Division
( ) Contents Expression
∧
AND
∨
OR
⊕
Exclusive OR
~ NOT
← Assignment / Transfer / Shift Left
→ Shift Right
Bit Position
1
Bit Position
0