npx.c File Reference

#include "core.h"

Defines
#define	IO_NPX   0x0F0
#define	NPX_NM   7
#define	NPX_MF   16
#define	fldcw(addr)   __asm("fldcw %0" : : "m" (*addr))
#define	fnclex()   __asm("fnclex")
#define	fninit()   __asm("fninit")
#define	fnsave(addr)   __asm("fnsave %0" : "=m" (*addr))
#define	fnstcw(addr)   __asm("fnstcw %0" : "=m" (*addr))
#define	fnstsw(addr)   __asm("fnstsw %0" : "=m" (*addr))
#define	fp_divide_by_0()   __asm("fldz; fld1; fdiv %st,%st(1); fwait")
#define	frstor(addr)   __asm("frstor %0" : : "m" (*addr))
#define	fwait()   __asm("fwait")
#define	clts()   __asm("clts")
#define	stts()   lcr0(rcr0() | CR0_TS)
Functions
int	npx586bug1 ()
void	npx_nm_except_raw ()
void	fpu_save (union savefpu *addr)
void	sys_npx_save (struct s_tcb_full *caller)
void	sys_npx_restore (struct s_tcb_full *caller)
void	do_npxsrv_syscall ()
void	npxsrv_syscall ()
void	npx_nm_except_test ()
void	do_npx_mf_except ()
void	npx_mf_except ()
void	npx_main (int argc, char **argv)
Variables
__cpu_simple_lock_t	npx_lock
int	npx_fpu_fdivbug = 0
int	npx_use_fxsave = 0

---

Define Documentation

#define clts (   )     __asm("clts")

#define fldcw (  addr   )     __asm("fldcw %0" : : "m" (*addr))

#define fnclex (   )     __asm("fnclex")

#define fninit (   )     __asm("fninit")

#define fnsave (  addr   )     __asm("fnsave %0" : "=m" (*addr))

#define fnstcw (  addr   )     __asm("fnstcw %0" : "=m" (*addr))

#define fnstsw (  addr   )     __asm("fnstsw %0" : "=m" (*addr))

#define fp_divide_by_0 (   )     __asm("fldz; fld1; fdiv %st,%st(1); fwait")

#define frstor (  addr   )     __asm("frstor %0" : : "m" (*addr))

#define fwait (   )     __asm("fwait")

#define IO_NPX   0x0F0

#define NPX_MF   16

#define NPX_NM   7

#define stts (   )     lcr0(rcr0() | CR0_TS)

---

Function Documentation

void do_npx_mf_except (   )

void do_npxsrv_syscall (   )

void fpu_save (  union savefpu *  addr  )

int npx586bug1 (   )

void npx_main (  int  argc, char **  argv )

void npx_mf_except (   )

void npx_nm_except_raw (   )

void npx_nm_except_test (   )

void npxsrv_syscall (   )

void sys_npx_restore (  struct s_tcb_full *  caller  )

void sys_npx_save (  struct s_tcb_full *  caller  )

---

Variable Documentation

int npx_fpu_fdivbug = 0

__cpu_simple_lock_t npx_lock

int npx_use_fxsave = 0

---