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Assembler User Guide
VFP data types
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| Home > VFP Programming > VFP data types | |||
Data type specifiers in VFP instructions consist of a letter indicating the type of data, usually followed by a number indicating the width. They are separated from the instruction mnemonic by a point. Table 35 shows the data types available in VFP instructions.
Table 35. VFP data types
| 16-bit | 32-bit | 64-bit | |
|---|---|---|---|
| Unsigned integer | U16 | U32 | not available |
| Signed integer | S16 | S32 | not available |
| Floating-point number | F16 | F32 (or F) | F64 (or D) |
The datatype of the second (or only) operand is specified in the instruction.
Note
Most instructions have a restricted range of permitted data types. See the instruction pages for details. However, the data type description is flexible:
If only the data size is specified, you can specify a type (S, U, or F)
If no data type is specified, you can specify a data type.
The
F16data type is only available on systems that implement the half-precision architecture extension.
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0379D |
| Non-Confidential | ID062912 |
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