Omron CJ2 CPU UNIT SOFTWARE User Manual page 525

Instruction Mnemonic Code
LOGA- LOG 468
RITHM
@LOG
EXPONEN- PWR 840
TIAL
@PWR
POWER
FLOATING LD, AND. or 329
SYMBOL OR (=F),
COMPARI-
+ 330
SON
(<>F),
=F, <>F, <F,
<=F, >F, or 331
>=F (<F),
332
(<=F),
333
(>F),
334
(>=F)
FLOAT- FSTR 448
ING-
@FSTR
POINT TO
ASCII
ASCII TO FVAL 449
FLOATING-
@FVAL
POINT
CJ2 CPU Unit Software User's Manual
Symbol/Operand
Calculates the natural (base e) logarithm of a 32-bit
LOG(468)
floating-point number and places the result in the specified
result words.
S
R
log
e
S: 1st source word
R: 1st result word
Raises a 32-bit floating-point number to the power of
PWR(840)
another 32-bit floating-point number.
B
E
R
B+1
B: 1st base word
E: 1st exponent
word
R: 1st result word
Compares the specified single-precision data (32 bits) or con-
Using LD:
stants and creates an ON execution condition if the comparison
result is true.
Symbol, option
Three kinds of symbols can be used with the floating-point sym-
S1
bol comparison instructions: LD (Load), AND, and OR.
S2
Using AND:
Symbol, option
S1
S2
Using OR:
Symbol, option
S1
S2
S1: Comparison data 1
S2: Comparison data 2
Converts the specified single-precision floating-point data (32-bit
FSTR(448)
decimal-point or exponential format) to text string data (ASCII)
and outputs the result to the destination word.
S
C
D
S: 1st source
word
C: Control word
D: Destination
word
Converts the specified text string (ASCII) representation of sin-
FVAL(449)
gle-precision floating-point data (decimal-point or exponential for-
mat) to 32-bit single-precision floating-point data and outputs the
S
result to the destination words.
D
S: Source word
D: 1st destination
word
Function
S+1
S
R+1 R
Power
E+1 E
S R+1 R
Base
Appendices
Execution
Location
condition
Output Required
Source (32-bit
floating-point
data)
Result (32-bit
floating-point
data)
Output Required
LD: LD:
Logical
Not
start.
required
AND or
AND or
OR:
OR:
Contin-
Required
ues on
rung
Output Required
Output Required
A-41