main.c File Reference

FPU Exception Emulation - Emulation of FPU exceptions More...

#include <xtf.h>

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Data Structures
struct	test_cfg

Macros
#define	CR0_SYM(...)   TOK_OR(X86_CR0_, ##__VA_ARGS__)
#define	CR0_MASK   CR0_SYM(EM, MP, TS)

Functions
exinfo_t	probe_x87 (bool force)
exinfo_t	probe_x87_wait (bool force)
exinfo_t	probe_mmx (bool force)
exinfo_t	probe_sse (bool force)
static exinfo_t	probe_avx (bool force)
void	run_sequence (const struct test_cfg *seq, unsigned int nr, unsigned int(*fn)(bool), bool force, exinfo_t override)
void	run_tests (bool force)
void	test_main (void)
	To be implemented by each test, as its entry point. More...

Variables
const char	test_title [] = "FPU Exception Emulation"
	The title of the test. More...
static unsigned long	default_cr0
static const struct test_cfg	x87 []
	x87 coprocessor. More...
static const struct test_cfg	x87_wait []
	The x87 wait instruction. More...
static const struct test_cfg	mmx_sse []
	MMX and SSE instructions. More...
static const struct test_cfg	avx []
	AVX instructions. More...

Detailed Description

FPU Exception Emulation - Emulation of FPU exceptions

Definition in file main.c.

Macro Definition Documentation

CR0_SYM

#define CR0_SYM

(

...

)

TOK_OR(X86_CR0_, ##__VA_ARGS__)

Definition at line 40 of file main.c.

CR0_MASK

#define CR0_MASK   CR0_SYM(EM, MP, TS)

Definition at line 41 of file main.c.

Function Documentation

probe_x87()

exinfo_t probe_x87

(

bool

force

)

Definition at line 67 of file main.c.

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probe_x87_wait()

exinfo_t probe_x87_wait

(

bool

force

)

Definition at line 100 of file main.c.

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probe_mmx()

exinfo_t probe_mmx

(

bool

force

)

Definition at line 132 of file main.c.

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probe_sse()

exinfo_t probe_sse

(

bool

force

)

Definition at line 148 of file main.c.

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probe_avx()

static exinfo_t probe_avx ( bool  force )

static

Definition at line 180 of file main.c.

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run_sequence()

void run_sequence	(	const struct test_cfg *	seq,
		unsigned int	nr,
		unsigned int(*)(bool)	fn,
		bool	force,
		exinfo_t	override
	)

Definition at line 196 of file main.c.

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run_tests()

void run_tests

(

bool

force

)

Definition at line 224 of file main.c.

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test_main()

void test_main

(

void

)

To be implemented by each test, as its entry point.

Definition at line 283 of file main.c.

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Variable Documentation

test_title

const char test_title[] = "FPU Exception Emulation"

The title of the test.

Definition at line 38 of file main.c.

default_cr0

unsigned long default_cr0

static

Definition at line 49 of file main.c.

x87

const struct test_cfg x87[]

static

Initial value:

=
{
    { CR0_SYM(          ), 0 },
    { CR0_SYM(        TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(    MP    ), 0 },
    { CR0_SYM(    MP, TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM        ), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM,     TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM, MP    ), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM, MP, TS), EXINFO_SYM(NM, 0) },
}

x87 coprocessor.

Should raise #NM if emulation is enabled (no coprocessor available) or if the task has switched.

Definition at line 55 of file main.c.

x87_wait

const struct test_cfg x87_wait[]

static

Initial value:

=
{
    { CR0_SYM(          ), 0 },
    { CR0_SYM(        TS), 0 },
    { CR0_SYM(    MP    ), 0 },
    { CR0_SYM(    MP, TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM        ), 0 },
    { CR0_SYM(EM,     TS), 0 },
    { CR0_SYM(EM, MP    ), 0 },
    { CR0_SYM(EM, MP, TS), EXINFO_SYM(NM, 0) },
}

The x87 wait instruction.

This instruction behaves differently, and should only raise #NM when monitoring the coprocessor and the task has switched.

Definition at line 88 of file main.c.

mmx_sse

const struct test_cfg mmx_sse[]

static

Initial value:

=
{
    { CR0_SYM(          ), 0 },
    { CR0_SYM(        TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(    MP    ), 0 },
    { CR0_SYM(    MP, TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM        ), EXINFO_SYM(UD, 0) },
    { CR0_SYM(EM,     TS), EXINFO_SYM(UD, 0) },
    { CR0_SYM(EM, MP    ), EXINFO_SYM(UD, 0) },
    { CR0_SYM(EM, MP, TS), EXINFO_SYM(UD, 0) },
}

MMX and SSE instructions.

Emulation is unsupported (thus raising #UD), but #NM should be raised if the task has been switched.

Definition at line 120 of file main.c.

avx

const struct test_cfg avx[]

static

Initial value:

=
{
    { CR0_SYM(          ), 0 },
    { CR0_SYM(        TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(    MP    ), 0 },
    { CR0_SYM(    MP, TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM        ), 0 },
    { CR0_SYM(EM,     TS), EXINFO_SYM(NM, 0) },
    { CR0_SYM(EM, MP    ), 0 },
    { CR0_SYM(EM, MP, TS), EXINFO_SYM(NM, 0) },
}

AVX instructions.

The emulation flag is meaningless, but #NM should be raised if the task has been switched.

Definition at line 168 of file main.c.