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Floating-point Math Instructions Section 3-15
Variations
Applicable Program Areas
Operand Specifications
Description FLT(452) converts the 16-bit signed binary value in S to 32-bit floating-point
data (IEEE754-format) and places the result in R+1 and R. A single 0 is
added after the decimal point in the floating-point result.
Only values within the range of –32,768 to 32,767 can be specified for S. To
convert signed binary data outside of that range, use FLTL(453).
Variations Executed Each Cycle for ON Condition FLT(452)
Executed Once for Upward Differentiation @FLT(452)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
Area S R
CIO Area CIO 0000 to CIO 6143 CIO 0000 to CIO 6142
Work Area W000 to W511 W000 to W510
Holding Bit Area H000 to H511 H000 to H510
Auxiliary Bit Area A000 to A959 A448 to A958
Timer Area T0000 to T4095 T0000 to T4094
Counter Area C0000 to C4095 C0000 to C4094
DM Area D00000 to D32767 D00000 to D32766
EM Area without bank E00000 to E32767 E00000 to E32766
EM Area with bank En_00000 to En_32767
(n= 0 to C)
En_00000 to En_32766
(n= 0 to C)
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Indirect DM/EM
addresses in BCD
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Constants #0000 to #FFFF
(binary)
---
Data Registers DR0 to DR15 ---
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
R+1 R
S
Floating-point data (32 bits)
Signed binary data (16 bits)
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