irq_context Struct Reference

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

#include <arch/irq.h>

Data Fields
uint32	r [16]
	16 general purpose (integer) registers More...
uint32	pc
	Program counter. More...
uint32	pr
	Procedure register (aka return address) More...
uint32	gbr
	Global base register. More...
uint32	vbr
	Vector base register. More...
uint32	mach
	Multiply-and-accumulate register (high) More...
uint32	macl
	Multiply-and-accumulate register (low) More...
uint32	sr
	Status register. More...
uint32	frbank [16]
	Secondary floating poing registers. More...
uint32	fr [16]
	Primary floating point registers. More...
uint32	fpscr
	Floating-point status/control register. More...
uint32	fpul
	Floatint-point communication register. More...

Detailed Description

Architecture-specific structure for holding the processor state.

This structure should hold register values and other important parts of the processor state. The size of this structure should be less than or equal to the REG_BYTE_CNT value.

Field Documentation

uint32 irq_context::fpscr

Floating-point status/control register.

uint32 irq_context::fpul

Floatint-point communication register.

uint32 irq_context::fr[16]

Primary floating point registers.

uint32 irq_context::frbank[16]

Secondary floating poing registers.

uint32 irq_context::gbr

Global base register.

uint32 irq_context::mach

Multiply-and-accumulate register (high)

uint32 irq_context::macl

Multiply-and-accumulate register (low)

uint32 irq_context::pc

Program counter.

uint32 irq_context::pr

Procedure register (aka return address)

uint32 irq_context::r[16]

16 general purpose (integer) registers

uint32 irq_context::sr

Status register.

uint32 irq_context::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