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2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)
Conversion Instructions
2
ASC
ASC
Applicable Program Areas
Operands
DI: Digit Designator
The digit designator specifies various parameters for the conversion, as shown in the following dia-
gram.
Instruction Mnemonic Variations
Function
code
Function
ASCII CONVERT ASC @ASC 086
Converts 4-bit hexadecimal digits in the source
word into their 8-bit ASCII equivalents.
Symbol
ASC
Area Step program areas Subroutines Interrupt tasks
Usage OK OK OK
Operand Description Data type Size
S Source word UINT 1
DI Digit designator UINT 1
D First destination word UINT Variable
S: Source Word D: First Destination Word
Note The destination words must be in the same
data area.
S: Source word
DI: Digit designator
D: First destination word
ASC(086)
S
DI
D
S
Digit 3 Digit 2
811
1215
Digit 1 Digit 0
03
47
Digits from the starting digit of conversion going
left are treated as HEX data and converted to
ASCII code (returns to digit 0 after digit 3)
D
D+1
D+2
815
Leftmost byte Rightmost byte
07
ASCII code is stored in the left word side. The
code is stored from the output starting byte of
D in the order rightmost byte, leftmost byte.
Leftmost byte Rightmost byte
Leftmost byte Rightmost byte
Specifies the first digit in S to be converted (0 to 3).
Number of digits to be converted (0 to 3)
0: 1 digit
1: 2 digits
2: 3 digits
3: 4 digits
First byte of D to be used.
0: Rightmost byte
1: Leftmost byte
Parity 0: None
1: Even
2: Odd
Digit number: 3 2 1 0