Floating-Point Math Instructions - Omron CS1G/H-CPUxxH Instructions Manual

Floating-point Math Instructions

3-15 Floating-point Math Instructions
Data Format
The Floating-point Math Instructions convert data and perform floating-point
arithmetic operations. CS/CJ-series CPU Units support the following instruc-
tions.
Instruction
FLOATING TO 16-BIT
FLOATING TO 32-BIT
16-BIT TO FLOATING
32-BIT TO FLOATING
FLOATING-POINT ADD
FLOATING-POINT SUB-
TRACT
FLOATING-POINT MULTI-
PLY
FLOATING-POINT DIVIDE /F
DEGREES TO RADIANS
RADIANS-TO-DEGREES
SINE
COSINE
TANGENT
ARC SINE
ARC COSINE
ARC TANGENT
SQUARE ROOT
EXPONENT
LOGARITHM
EXPONENTIAL POWER
In addition to the instructions listed above, the CS1-H/CJ1-H CPU Units sup-
port the following floating-point comparison and conversion instructions. Refer
to 3-16-21 Double-precision Floating-point Input Instructions for details on
double-precision floating-point instructions.
Instruction
Single-precision Floating-
point Symbol Comparison
Instructions
(*CS1-H/CJ1-H/CJ1M
Only)
FLOATING-POINT TO
ASCII (*CS1-H/CJ1-H/
CJ1M Only)
ASCII TO FLOATING-
POINT (*CS1-H/CJ1-H/
CJ1M Only)
Floating-point data expresses real numbers using a sign, exponent, and man-
tissa. When data is expressed in floating-point format, the following formula
applies.
s e–127
Real number = (–1) 2
s: Sign
e: Exponent
f: Mantissa
Mnemonic Function code
FIX 450
FIXL 451
FLT 452
FLTL 453
+F 454
–F 455
*F
456
457
RAD 458
DEG 459
SIN 460
COS 461
TAN 462
ASIN 463
ACOS 464
ATAN 465
SQRT 466
EXP 467
LOG 468
PWR 840
Mnemonic Function code
LD, AND, OR 329 to 334
+
=F, <>F, <F, <=F, >F,
or >=F
FSTR 448
FVAL 449
(1.f)
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