Register a function as an SCU interrupt handler.
- Parameters
-
| type | SCU interrupt source to handle (0x40-0x4F) |
| handler | Function pointer to register (or nullptr to clear) |
Calls the BIOS entry at 0x6000300. The handler is invoked by the interrupt dispatcher when the corresponding SCU interrupt fires.
- Warning
- SCU handlers only. The handler function must be declared with __attribute__((interrupt_handler)) so the compiler emits rte instead of rts. This requirement does not apply to CPU/TRAP vectors (0x60-0x8F) which use normal rts. Omitting the attribute on an SCU handler will crash on return from interrupt.
- See also
- Interrupt::SetHandler() for the type-safe wrapper with compile-time checks
