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74
Instruction Functions
Section 2-2
DOUBLE LOGA-
RITHM
LOGD
@LOGD
859
Calculates the natural (base e) logarithm of the specified double-precision
floating-point data (64 bits) and outputs the result to the result words.
Output
Required
691
DOUBLE EXPO-
NENTIAL
POWER
PWRD
@PWRD
860
Raises a double-precision floating-point number (64 bits) to the power of
another double-precision floating-point number and outputs the result to
the result words.
Output
Required
693
DOUBLE SYM-
BOL COMPARI-
SON
LD, AND. or OR
+
=D (335),
<>D (336),
<D (337),
<=D (338),
>D (339),
or >=D (340)
Compares the specified double-precision data (64 bits) and creates an ON
execution condition if the comparison result is true.
Three kinds of symbols can be used with the floating-point symbol com-
parison instructions: LD (Load), AND, and OR.
LD:
Not
required
AND or
OR:
Required
695
Instruction
Mnemonic
Code
Symbol/Operand
Function
Location
Execution
condition
Page
LOGD(859)
S
R
S:
1st source
word
R
: 1st result word
PWRD(860)
B
E
R
B:
1st base word
E
: 1st exponent
word
R
: 1st result word
S1
S2
S1
S2
S1
S2
S1
: Comparison data 1
S2
: Comparison data 2
Symbol, option
Using LD:
Symbol, option
Using AND:
Symbol, option
Using OR:
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...