i386: move math-emu

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 218 deletions

diff --git a/arch/i386/math-emu/fpu_emu.h b/arch/i386/math-emu/fpu_emu.h
deleted file mode 100644
index 65120f523853..000000000000
--- a/arch/i386/math-emu/fpu_emu.h
+++ /dev/null
@@ -1,218 +0,0 @@
-/*---------------------------------------------------------------------------+
- |  fpu_emu.h                                                                |
- |                                                                           |
- | Copyright (C) 1992,1993,1994,1997                                         |
- |                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      |
- |                       Australia.  E-mail   billm@suburbia.net             |
- |                                                                           |
- +---------------------------------------------------------------------------*/
-
-
-#ifndef _FPU_EMU_H_
-#define _FPU_EMU_H_
-
-/*
- * Define PECULIAR_486 to get a closer approximation to 80486 behaviour,
- * rather than behaviour which appears to be cleaner.
- * This is a matter of opinion: for all I know, the 80486 may simply
- * be complying with the IEEE spec. Maybe one day I'll get to see the
- * spec...
- */
-#define PECULIAR_486
-
-#ifdef __ASSEMBLY__
-#include "fpu_asm.h"
-#define	Const(x)	$##x
-#else
-#define	Const(x)	x
-#endif
-
-#define EXP_BIAS	Const(0)
-#define EXP_OVER	Const(0x4000)    /* smallest invalid large exponent */
-#define	EXP_UNDER	Const(-0x3fff)   /* largest invalid small exponent */
-#define EXP_WAY_UNDER   Const(-0x6000)   /* Below the smallest denormal, but
-					    still a 16 bit nr. */
-#define EXP_Infinity    EXP_OVER
-#define EXP_NaN         EXP_OVER
-
-#define EXTENDED_Ebias Const(0x3fff)
-#define EXTENDED_Emin (-0x3ffe)  /* smallest valid exponent */
-
-#define SIGN_POS	Const(0)
-#define SIGN_NEG	Const(0x80)
-
-#define SIGN_Positive	Const(0)
-#define SIGN_Negative	Const(0x8000)
-
-
-/* Keep the order TAG_Valid, TAG_Zero, TW_Denormal */
-/* The following fold to 2 (Special) in the Tag Word */
-#define TW_Denormal     Const(4)        /* De-normal */
-#define TW_Infinity	Const(5)	/* + or - infinity */
-#define	TW_NaN		Const(6)	/* Not a Number */
-#define	TW_Unsupported	Const(7)	/* Not supported by an 80486 */
-
-#define TAG_Valid	Const(0)	/* valid */
-#define TAG_Zero	Const(1)	/* zero */
-#define TAG_Special	Const(2)	/* De-normal, + or - infinity,
-					   or Not a Number */
-#define TAG_Empty	Const(3)	/* empty */
-#define TAG_Error	Const(0x80)	/* probably need to abort */
-
-#define LOADED_DATA	Const(10101)	/* Special st() number to identify
-					   loaded data (not on stack). */
-
-/* A few flags (must be >= 0x10). */
-#define REV             0x10
-#define DEST_RM         0x20
-#define LOADED          0x40
-
-#define FPU_Exception   Const(0x80000000)   /* Added to tag returns. */
-
-
-#ifndef __ASSEMBLY__
-
-#include "fpu_system.h"
-
-#include <asm/sigcontext.h>   /* for struct _fpstate */
-#include <asm/math_emu.h>
-#include <linux/linkage.h>
-
-/*
-#define RE_ENTRANT_CHECKING
- */
-
-#ifdef RE_ENTRANT_CHECKING
-extern u_char emulating;
-#  define RE_ENTRANT_CHECK_OFF emulating = 0
-#  define RE_ENTRANT_CHECK_ON emulating = 1
-#else
-#  define RE_ENTRANT_CHECK_OFF
-#  define RE_ENTRANT_CHECK_ON
-#endif /* RE_ENTRANT_CHECKING */
-
-#define FWAIT_OPCODE 0x9b
-#define OP_SIZE_PREFIX 0x66
-#define ADDR_SIZE_PREFIX 0x67
-#define PREFIX_CS 0x2e
-#define PREFIX_DS 0x3e
-#define PREFIX_ES 0x26
-#define PREFIX_SS 0x36
-#define PREFIX_FS 0x64
-#define PREFIX_GS 0x65
-#define PREFIX_REPE 0xf3
-#define PREFIX_REPNE 0xf2
-#define PREFIX_LOCK 0xf0
-#define PREFIX_CS_ 1
-#define PREFIX_DS_ 2
-#define PREFIX_ES_ 3
-#define PREFIX_FS_ 4
-#define PREFIX_GS_ 5
-#define PREFIX_SS_ 6
-#define PREFIX_DEFAULT 7
-
-struct address {
-  unsigned int offset;
-  unsigned int selector:16;
-  unsigned int opcode:11;
-  unsigned int empty:5;
-};
-struct fpu__reg {
-  unsigned sigl;
-  unsigned sigh;
-  short exp;
-};
-
-typedef void (*FUNC)(void);
-typedef struct fpu__reg FPU_REG;
-typedef void (*FUNC_ST0)(FPU_REG *st0_ptr, u_char st0_tag);
-typedef struct { u_char address_size, operand_size, segment; }
-        overrides;
-/* This structure is 32 bits: */
-typedef struct { overrides override;
-		 u_char default_mode; } fpu_addr_modes;
-/* PROTECTED has a restricted meaning in the emulator; it is used
-   to signal that the emulator needs to do special things to ensure
-   that protection is respected in a segmented model. */
-#define PROTECTED 4
-#define SIXTEEN   1         /* We rely upon this being 1 (true) */
-#define VM86      SIXTEEN
-#define PM16      (SIXTEEN | PROTECTED)
-#define SEG32     PROTECTED
-extern u_char const data_sizes_16[32];
-
-#define register_base ((u_char *) registers )
-#define fpu_register(x)  ( * ((FPU_REG *)( register_base + 10 * (x & 7) )) )
-#define	st(x)      ( * ((FPU_REG *)( register_base + 10 * ((top+x) & 7) )) )
-
-#define	STACK_OVERFLOW	(FPU_stackoverflow(&st_new_ptr))
-#define	NOT_EMPTY(i)	(!FPU_empty_i(i))
-
-#define	NOT_EMPTY_ST0	(st0_tag ^ TAG_Empty)
-
-#define poppop() { FPU_pop(); FPU_pop(); }
-
-/* push() does not affect the tags */
-#define push()	{ top--; }
-
-#define signbyte(a) (((u_char *)(a))[9])
-#define getsign(a) (signbyte(a) & 0x80)
-#define setsign(a,b) { if (b) signbyte(a) |= 0x80; else signbyte(a) &= 0x7f; }
-#define copysign(a,b) { if (getsign(a)) signbyte(b) |= 0x80; \
-                        else signbyte(b) &= 0x7f; }
-#define changesign(a) { signbyte(a) ^= 0x80; }
-#define setpositive(a) { signbyte(a) &= 0x7f; }
-#define setnegative(a) { signbyte(a) |= 0x80; }
-#define signpositive(a) ( (signbyte(a) & 0x80) == 0 )
-#define signnegative(a) (signbyte(a) & 0x80)
-
-static inline void reg_copy(FPU_REG const *x, FPU_REG *y)
-{
-  *(short *)&(y->exp) = *(const short *)&(x->exp); 
-  *(long long *)&(y->sigl) = *(const long long *)&(x->sigl);
-}
-
-#define exponent(x)  (((*(short *)&((x)->exp)) & 0x7fff) - EXTENDED_Ebias)
-#define setexponentpos(x,y) { (*(short *)&((x)->exp)) = \
-  ((y) + EXTENDED_Ebias) & 0x7fff; }
-#define exponent16(x)         (*(short *)&((x)->exp))
-#define setexponent16(x,y)  { (*(short *)&((x)->exp)) = (y); }
-#define addexponent(x,y)    { (*(short *)&((x)->exp)) += (y); }
-#define stdexp(x)           { (*(short *)&((x)->exp)) += EXTENDED_Ebias; }
-
-#define isdenormal(ptr)   (exponent(ptr) == EXP_BIAS+EXP_UNDER)
-
-#define significand(x) ( ((unsigned long long *)&((x)->sigl))[0] )
-
-
-/*----- Prototypes for functions written in assembler -----*/
-/* extern void reg_move(FPU_REG *a, FPU_REG *b); */
-
-asmlinkage int FPU_normalize(FPU_REG *x);
-asmlinkage int FPU_normalize_nuo(FPU_REG *x);
-asmlinkage int FPU_u_sub(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign,
-			 int expa, int expb);
-asmlinkage int FPU_u_mul(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign,
-			 int expon);
-asmlinkage int FPU_u_div(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign);
-asmlinkage int FPU_u_add(FPU_REG const *arg1, FPU_REG const *arg2,
-			 FPU_REG *answ, unsigned int control_w, u_char sign,
-			 int expa, int expb);
-asmlinkage int wm_sqrt(FPU_REG *n, int dummy1, int dummy2,
-		       unsigned int control_w, u_char sign);
-asmlinkage unsigned	FPU_shrx(void *l, unsigned x);
-asmlinkage unsigned	FPU_shrxs(void *v, unsigned x);
-asmlinkage unsigned long FPU_div_small(unsigned long long *x, unsigned long y);
-asmlinkage int FPU_round(FPU_REG *arg, unsigned int extent, int dummy,
-			 unsigned int control_w, u_char sign);
-
-#ifndef MAKING_PROTO
-#include "fpu_proto.h"
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _FPU_EMU_H_ */