Delta AS Series Programming Manual page 337

A S S er i es Pr og r am m ing M an u a l
API Instruction code
0105
Device X

S
1

S
2
D
Data
type
S
1
S
2
D
Symbol
_6
Explanation
1. This instruction subtracts the 32-bit single-precision floating-point number in S
floating-point numbers number in S
2. Instruction flags: SM600 (zero flag), SM601 (borrow flag), and SM602 (carry flag)

When the operation result is zero, SM600 is ON.

When the absolute value of the operation result is less than the value that can be represented by the minimum
floating-point number, the value in D is 16#FF800000 and SM601 is ON.

When the absolute value of the operation result is larger than the value that can be represented by the
maximum floating-point number, the value in D is 16#7F800000 and SM602 is ON.
b31.........b16 b15...........b0
6 - 5 8
F- P
Y M S T
 
 
 
： Minuend
S
1
： Subtrahend
S
2
： Difference
D
, and stores the difference in D.
1
S S +1 S
1 1
-
Operand
，S ，D
S
1 2
C HC D FR SM
   
   
  
Pulse instruction
AS
S S +1 S2
2
b31.........b16 b15...........b0
Function
Subtracting floating-point numbers
SR E K 16#



16-bit instruction 32-bit instruction
－
from the 32-bit single-precision
2
D
D+1
b31.........b16 b15...........b0
=
"$" F


AS