irq_context_t Struct Reference

Architecture-specific structure for holding the processor state. More...

#include <irq.h>

Data Fields
uint32_t	pc
	Program counter.
uint32_t	pr
	Procedure register (aka return address)
uint32_t	gbr
	Global base register (TLS segment ptr)
uint32_t	vbr
	Vector base register.
uint32_t	mach
	Multiply-and-accumulate register (high)
uint32_t	macl
	Multiply-and-accumulate register (low)
uint32_t	sr
	Status register.
uint32_t	fpul
	Floating-point communication register.
uint32_t	fr [16]
	Primary floating point registers.
uint32_t	frbank [16]
	Secondary floating point registers.
uint32_t	r [16]
	16 general purpose (integer) registers
uint32_t	fpscr
	Floating-point status/control register.

Detailed Description

Architecture-specific structure for holding the processor state.

This structure should hold register values and other important parts of the processor state.

Note

The size of this structure should be less than or equal to the REG_BYTE_CNT value.

Field Documentation

fpscr

uint32_t irq_context_t::fpscr

Floating-point status/control register.

fpul

uint32_t irq_context_t::fpul

Floating-point communication register.

fr

uint32_t irq_context_t::fr[16]

Primary floating point registers.

frbank

uint32_t irq_context_t::frbank[16]

Secondary floating point registers.

gbr

uint32_t irq_context_t::gbr

Global base register (TLS segment ptr)

mach

uint32_t irq_context_t::mach

Multiply-and-accumulate register (high)

macl

uint32_t irq_context_t::macl

Multiply-and-accumulate register (low)

pc

uint32_t irq_context_t::pc

Program counter.

pr

uint32_t irq_context_t::pr

Procedure register (aka return address)

r

uint32_t irq_context_t::r[16]

16 general purpose (integer) registers

sr

uint32_t irq_context_t::sr

Status register.

vbr

uint32_t irq_context_t::vbr

Vector base register.

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The documentation for this struct was generated from the following file:

• kernel/arch/dreamcast/include/arch/irq.h