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FLT(P),DFLT(P)
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6.3 Data conversion instructions
6.3.3 Conversion from BIN 16 and 32-bit data to floating decimal point (Single precision)
(FLT(P),DFLT(P))
(3) Due to the fact that 32-bit floating decimal point type real numbers are processed by simple
32-bit processing, the number of significant digits is 24 bits if the display is binary and
approximately 7 digits if the display is decimal.
For this reason, if the integer exceeds the range of 16777216 to 16777215 (24-bit BIN
value), errors can be generated in the conversion value.
As for the conversion result, the 25th bit from the upper bit of the integer is always filled with
1 and 26th bit and later bits are truncated.
Operation Error
(1) In the following case, an operation error occurs, the error flag (SM0) turns ON, and an error
code is stored into SD0.
• The result exceeds the following range (The overflow occurs.)
(For the Universal model QCPU only)
2
128
| Operation result | (Error code: 4141)
Integer
b31 b24 b23 b16
222030030
0 0 001 10100111 011
b15 b8
b7
b0
1 1 101 00011001 110
Result of operation
is 222030032.
Truncation
Always filled with 1
After conversion
372588919
0 0 010 11000110 101 0 1 000 00101110 111
Result of operation
is 372588928.
Truncation
Always filled with 1
b31 b24 b23 b16 b15 b8
b7
b0