Calls the system to provide a service.
| Bits | Value |
|---|---|
| 0-5 | 17 |
| 6-10 | /// |
| 11-15 | /// |
| 16-19 | /// |
| 20-26 | LEV |
| 27-29 | /// |
| 30 | 0 |
| 31 | 1 |
PowerPC
| scv | LEV |
The scv instruction causes a system call interrupt. The effective address (EA) of the instruction following the scv instruction is placed into the Link Register. Bits 0-32, 37-41, and 48-63 of the Machine State Register (MSR) are placed into the corresponding bits of Count Register. Bits 33-36 and 42-47 of the Count Register are set to undefined values.
The scv instruction has one syntax form. The syntax form does not affect the Machine State Register.
| LEV | Must be 0 or 1. |
svc (Supervisor Call) Instruction.
Functional Differences for POWER family and PowerPC Instructions.