SRL::System::InterruptPriorityTable Struct Reference

Detailed Description

SCU interrupt priority table (32 longword entries).

Each entry is a 32-bit value with two packed fields:

• Upper 16 bits: SH2 SR lower-word value set at interrupt entry
• Lower 16 bits: SCU interrupt mask OR'd with current mask at entry

Warning

Incorrect priority settings will crash the system. The BIOS performs no validation on the table content.

See also

SetInterruptPriorities()

#include <srl_system.hpp>

Public Member Functions
constexpr	InterruptPriorityTable ()
	Default constructor initializes all priorities to zero.
template<size_t I>
constexpr const uint32_t &	at () const noexcept
	Const access to interrupt priority with compile-time bounds checking.
template<size_t I>
constexpr uint32_t &	at () noexcept
	Access interrupt priority with compile-time bounds checking.
constexpr const uint32_t &	operator[] (size_t index) const noexcept
	Const access to interrupt priority with runtime bounds checking.
constexpr uint32_t &	operator[] (size_t index) noexcept
	Access interrupt priority with runtime bounds checking.

Public Attributes
uint32_t	priorities [COUNT]
	Packed SR-value | mask-value entries.

Static Public Attributes
static constexpr size_t	COUNT = 32
	Number of SCU interrupt priority entries.