OS_Byte 1 (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_Byte 15 – SWI Calls
» OS_Byte 1OS
» OS_Byte
» OS_Byte 1
OS_Byte 1
(SWI &06)
| Entry | |
|---|---|
| R0 | 1 |
| R1 | New value |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Machine type |
| R2 | Corrupted |
Use
The purpose of this call is to write a location that is unused by the OS, which can then be used to pass results between applications.
Notes
The location may be read (and written) with OS_Byte 241 . System variables now provide a much better way of passing results, and should be used in instead.
This is a legacy call provided for compatibility with the 8-bit range of Acorn machines. System variables now provide a much better way of passing results, and should be used in instead.
See also
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