Service_Hardware 1 (changes)
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Hardware Abstraction Layer
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» Service_Hardware 1
Service_Hardware 1
(Service Call &D9)
| Entry | |
|---|---|
| R0 | Bits 0-7 Reason code (1) |
| Bits 8-31 flags (reserved, will be 0) | |
| R1 | Service_Hardware (&D9) |
| R2 | Device |
| Exit | |
|---|---|
| R1 | 0 to object to device being removed |
| R0 → error block | |
| Other registers must be preserved | |
| Else all registers must be preserved | |
Use
This service call is issued by the OS before a device is removed from the system. Claiming the service call by setting R1 to 0 will block the removal of the device.
See also
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