OS_Byte 0 (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_Byte 15 – SWI Calls
» OS_Byte 0OS
» OS_Byte
» OS_Byte 0
OS_Byte 0
(SWI &06)
| Entry | |
|---|---|
| R0 | 0 (reason code) |
| R1 | 0 to return OS version, or |
| 1 to return machine information |
| Exit | Return OS Version |
|---|---|
| R0 | Pointer to OS version string as an error block |
| R1 | Preserved |
| R2 | Corrupted |
| V flag set | |
| Exit | Return Machine Information |
|---|---|
| R0 | Preserved |
| R1 | Machine type |
| R2 | Corrupted |
Use
The purpose of this call is to return information about either the Operating System or machine.
Notes
If R1=0 on entry, this call displays the OS version by returning it as an error string, with V set.
If R1=1 this call returns the machine type in R1 – all RISC OS machines return 6.
See also
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