OS_ReadSysInfo (changes)
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Programmer's OS Reference SWI Manuals Calls
» OS_ReadSysInfoPart 15 – SWI Calls?
» OS
» OS_ReadSysInfo
OS_ReadSysInfo
(SWI &58)
| Entry | |
|---|---|
| R0 | Reason code |
| Exit | |
|---|---|
| All other registers dependent on reason code | |
Use
The purpose of this call is to read and return information about the system.
Notes
The action performed depends on the reason code value in R0.
Reason Codes
| # | Hex # | Action |
|---|---|---|
| 0 | &00 | Read configured screen size |
| 1 | &01 | Read configured screen mode and monitor type |
| 2 | &02 | Machine ID and IO chip presence |
| 3 | &03 | 82C71x features |
| 4 | &04 | Machine Ethernet address |
| 5 | &05 | Machine ID raw |
| 6 | &06 | Kernel value |
| 7 | &07 | Information about last unexpected abort (data or prefetch) |
| 8 | &08 | Platform class |
| 9 | &09 | Version information |
| 10 | &0A | Operating system version |
| 11 | &0B | Debug information |
| 12 | &0C | Extended Machine ID |
| 13 | &0D | Validate key handler/read supported flags |
| 14 | &0E | IIC bus count |
| 15 | &0F | Enumerate extended ROM footer entries |
See also
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