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59
Instruction Functions
Section 2-2
DATA ENCODER
DMPX
@DMPX
077
Output
Required
501
ASCII CONVERT
ASC
@ASC
086
Output
Required
505
Instruction
Mnemonic
Code
Symbol/Operand
Function
Location
Execution
condition
Page
DMPX(077)
S
R
C
S
: 1st source
word
R
: Result word
C
: Control word
C
R
C
R
Leftmost bit
Rightmost bit
Leftmost bit
l
=1 (Convert
2 words.)
FInds the location of the first or last ON bit within the source word (or
16-word range), and writes that value to the specified digit (or byte) in
the result word.
16-to-4 bit conversion
Finds leftmost bit
(Highest bit address)
16-to-4 bit decoding
(Location of leftmost
bit (m) is written to R.)
n=2 (Start with digit 2.)
256-to-8 bit conversion
l
=0 (Convert one 16-word range.)
Finds leftmost bit
(Highest bit address)
256-to-8 bit decoding (The location of
the leftmost bit in the 16-word range
(m) is written to R.)
n=1 (Start with byte 1.)
ASC(086)
S
D
Di
S
: Source word
Di
: Digit
designator
D
: 1st destination
word
Right (0)
Left (1)
Di
Converts 4-bit hexadecimal digits in the source word into their 8-bit
ASCII equivalents.
First digit to convert
Number of
digits (n+1)
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...