Manual

2-233
2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)
Floating-point Math
Instructions
2
FIX/FIXL
FIX/FIXL
Applicable Program Areas
Operands
 Operand Specifications
Flags
Instruction Mnemonic Variations
Function
code
Function
FLOATING TO 16-BIT FIX @FIX 450
Converts a 32-bit floating-point value to 16-bit
signed binary data and places the result in the
specified result word.
FLOATING TO 32-BIT FIXL @FIXL 451
Converts a 32-bit floating-point value to 32-bit
signed binary data and places the result in the
specified result words.
Symbol
FIX FIXL
Area Step program areas Subroutines Interrupt tasks
Usage OK OK OK
Operand Description
Data type Size
FIX FIXL FIX FIXL
S First source word REAL REAL 2 2
R First result word INT DINT 1 2
Area
Word addresses Indirect DM addresses
Constants CF Pulse bits TR bits
CIO WR HR AR T C DM @DM *DM
S
OK OK OK OK OK OK OK OK OK
OK
--- --- ---
R ---
Name Label Operation
Error Flag P_ER • FIX
ON if the integer portion of S+1 and S is not within the range of -32,768 to 32,767.
• FIXL
ON if the integer portion of S+1 and S is not within the range of -2,147,483,648 to 2,147,483,647.
• ON if the data in S+1 and S is not a number (NaN).
• OFF in all other cases.
Equals Flag P_EQ • ON if the result is 0000.
• OFF in all other cases.
Negative Flag P_N • ON when the leftmost bit of the result is 1.
• OFF in all other cases.
S: First source word
R: Result word
FIX(450)
S
R
S: First source word
R: First result word
FIXL(451)
S
R