fpu.h File Reference

Helper for floating point unit (x87), Multi Media Extension (MMX) and Streaming SIMD Extensions (SSE) More...

#include "types.h"
#include "debug/assert.h"

Include dependency graph for fpu.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	FPU::State
	512 byte structure for FPU / MMX / SSE registers corresponds to the layout used by the instructions fxsave and fxrstor. More...
struct	FPU::State::ST
	80 bit registers for FPU stack / MMX More...
struct	FPU::State::XMM
	128 bit SSE registers More...
union	FPU::State.__unnamed__
struct	FPU::State.__unnamed__.__unnamed__
union	FPU::State.__unnamed__
struct	FPU::State.__unnamed__.__unnamed__
struct	FPU::State.st

Namespaces
	FPU
	For the sake of simplicity we call it just FPU, although this is for MMX and SSE as well.

Functions
	FPU::assert_size (State, 512)
bool	FPU::init ()
	Initialize FPU on the current CPU. More...

Detailed Description

Helper for floating point unit (x87), Multi Media Extension (MMX) and Streaming SIMD Extensions (SSE)

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Class Documentation

FPU::State::ST

struct FPU::State::ST

80 bit registers for FPU stack / MMX

Class Members
uint64_t	fraction: 63
uint64_t	integer: 1
uint16_t	exponent: 15
uint16_t	sign: 1

FPU::State::XMM

struct FPU::State::XMM

128 bit SSE registers

Class Members
uint64_t	low
uint64_t	high

FPU::State.__unnamed__

union FPU::State.__unnamed__

Class Members
uint64_t	ip
__unnamed__	__unnamed__

FPU::State.__unnamed__.__unnamed__

struct FPU::State.__unnamed__.__unnamed__

Class Members
uint32_t	ip_off
uint32_t	ip_seg

FPU::State.__unnamed__

union FPU::State.__unnamed__

Class Members
uint64_t	dp
__unnamed__	__unnamed__

FPU::State.__unnamed__.__unnamed__

struct FPU::State.__unnamed__.__unnamed__

Class Members
uint32_t	dp_off
uint32_t	dp_seg

FPU::State.st

struct FPU::State.st

Class Members
ST	value
uint64_t	__pad0__: 48