OS_ConvertVariform (changes)
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Programmer's OS Reference SWI Manuals Calls
» OS_ConvertVariformPart 15 – SWI Calls
» OS
» OS_ConvertVariform
OS_ConvertVariform
(SWI &ED)
| Entry | |
|---|---|
| R0 | Pointer to input value (word aligned) |
| R1 | Pointer to output buffer |
| R2 | Buffer length, or negative to read required length |
| R3 | Bytes to use from input value (or nibbles for hex output) |
| R4 | Type to convert to |
| Exit | |
|---|---|
| R0 | Pointer to buffer (R1 on entry) |
| R1 | Pointer to null terminator |
| R2 | Bytes free in buffer, or NOT space required if R2 negative on entry |
Use
This is a general-purpose call for converting numbers to strings. It is a more flexible and feature-rich version of the existing OS_Convert* SWIs (OS_ConvertInteger4, OS_ConvertHex8, etc.)
Notes
This call first became available in RISC OS 5.17. It is also available in CallASWI 0.06 and newer.
See also
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