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x86: lindent arch/i386/math-emu
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lindent these files:
                                       errors   lines of code   errors/KLOC
 arch/x86/math-emu/                      2236            9424         237.2
 arch/x86/math-emu/                       128            8706          14.7

no other changes. No code changed:

   text    data     bss     dec     hex filename
   5589802  612739 3833856 10036397         9924ad vmlinux.before
   5589802  612739 3833856 10036397         9924ad vmlinux.after

the intent of this patch is to ease the automated tracking of kernel
code quality - it's just much easier for us to maintain it if every file
in arch/x86 is supposed to be clean.

NOTE: it is a known problem of lindent that it causes some style damage
of its own, but it's a safe tool (well, except for the gcc array range
initializers extension), so we did the bulk of the changes via lindent,
and did the manual fixups in a followup patch.

the resulting math-emu code has been tested by Thomas Gleixner on a real
386 DX CPU as well, and it works fine.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Ingo Molnar committed Jan 30, 2008
1 parent a4ec1ef commit 3d0d14f
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Showing 27 changed files with 6,046 additions and 6,764 deletions.
888 changes: 419 additions & 469 deletions arch/x86/math-emu/errors.c
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9 changes: 3 additions & 6 deletions arch/x86/math-emu/exception.h
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@
#ifndef _EXCEPTION_H_
#define _EXCEPTION_H_


#ifdef __ASSEMBLY__
#define Const_(x) $##x
#else
Expand All @@ -20,8 +19,8 @@
#include "fpu_emu.h"
#endif /* SW_C1 */

#define FPU_BUSY Const_(0x8000) /* FPU busy bit (8087 compatibility) */
#define EX_ErrorSummary Const_(0x0080) /* Error summary status */
#define FPU_BUSY Const_(0x8000) /* FPU busy bit (8087 compatibility) */
#define EX_ErrorSummary Const_(0x0080) /* Error summary status */
/* Special exceptions: */
#define EX_INTERNAL Const_(0x8000) /* Internal error in wm-FPU-emu */
#define EX_StackOver Const_(0x0041|SW_C1) /* stack overflow */
Expand All @@ -34,11 +33,9 @@
#define EX_Denormal Const_(0x0002) /* denormalized operand */
#define EX_Invalid Const_(0x0001) /* invalid operation */


#define PRECISION_LOST_UP Const_((EX_Precision | SW_C1))
#define PRECISION_LOST_DOWN Const_(EX_Precision)


#ifndef __ASSEMBLY__

#ifdef DEBUG
Expand All @@ -48,6 +45,6 @@
#define EXCEPTION(x) FPU_exception(x)
#endif

#endif /* __ASSEMBLY__ */
#endif /* __ASSEMBLY__ */

#endif /* _EXCEPTION_H_ */
150 changes: 64 additions & 86 deletions arch/x86/math-emu/fpu_arith.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,160 +15,138 @@
#include "control_w.h"
#include "status_w.h"


void fadd__(void)
{
/* fadd st,st(i) */
int i = FPU_rm;
clear_C1();
FPU_add(&st(i), FPU_gettagi(i), 0, control_word);
/* fadd st,st(i) */
int i = FPU_rm;
clear_C1();
FPU_add(&st(i), FPU_gettagi(i), 0, control_word);
}


void fmul__(void)
{
/* fmul st,st(i) */
int i = FPU_rm;
clear_C1();
FPU_mul(&st(i), FPU_gettagi(i), 0, control_word);
/* fmul st,st(i) */
int i = FPU_rm;
clear_C1();
FPU_mul(&st(i), FPU_gettagi(i), 0, control_word);
}



void fsub__(void)
{
/* fsub st,st(i) */
clear_C1();
FPU_sub(0, FPU_rm, control_word);
/* fsub st,st(i) */
clear_C1();
FPU_sub(0, FPU_rm, control_word);
}


void fsubr_(void)
{
/* fsubr st,st(i) */
clear_C1();
FPU_sub(REV, FPU_rm, control_word);
/* fsubr st,st(i) */
clear_C1();
FPU_sub(REV, FPU_rm, control_word);
}


void fdiv__(void)
{
/* fdiv st,st(i) */
clear_C1();
FPU_div(0, FPU_rm, control_word);
/* fdiv st,st(i) */
clear_C1();
FPU_div(0, FPU_rm, control_word);
}


void fdivr_(void)
{
/* fdivr st,st(i) */
clear_C1();
FPU_div(REV, FPU_rm, control_word);
/* fdivr st,st(i) */
clear_C1();
FPU_div(REV, FPU_rm, control_word);
}



void fadd_i(void)
{
/* fadd st(i),st */
int i = FPU_rm;
clear_C1();
FPU_add(&st(i), FPU_gettagi(i), i, control_word);
/* fadd st(i),st */
int i = FPU_rm;
clear_C1();
FPU_add(&st(i), FPU_gettagi(i), i, control_word);
}


void fmul_i(void)
{
/* fmul st(i),st */
clear_C1();
FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word);
/* fmul st(i),st */
clear_C1();
FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word);
}


void fsubri(void)
{
/* fsubr st(i),st */
clear_C1();
FPU_sub(DEST_RM, FPU_rm, control_word);
/* fsubr st(i),st */
clear_C1();
FPU_sub(DEST_RM, FPU_rm, control_word);
}


void fsub_i(void)
{
/* fsub st(i),st */
clear_C1();
FPU_sub(REV|DEST_RM, FPU_rm, control_word);
/* fsub st(i),st */
clear_C1();
FPU_sub(REV | DEST_RM, FPU_rm, control_word);
}


void fdivri(void)
{
/* fdivr st(i),st */
clear_C1();
FPU_div(DEST_RM, FPU_rm, control_word);
/* fdivr st(i),st */
clear_C1();
FPU_div(DEST_RM, FPU_rm, control_word);
}


void fdiv_i(void)
{
/* fdiv st(i),st */
clear_C1();
FPU_div(REV|DEST_RM, FPU_rm, control_word);
/* fdiv st(i),st */
clear_C1();
FPU_div(REV | DEST_RM, FPU_rm, control_word);
}



void faddp_(void)
{
/* faddp st(i),st */
int i = FPU_rm;
clear_C1();
if ( FPU_add(&st(i), FPU_gettagi(i), i, control_word) >= 0 )
FPU_pop();
/* faddp st(i),st */
int i = FPU_rm;
clear_C1();
if (FPU_add(&st(i), FPU_gettagi(i), i, control_word) >= 0)
FPU_pop();
}


void fmulp_(void)
{
/* fmulp st(i),st */
clear_C1();
if ( FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word) >= 0 )
FPU_pop();
/* fmulp st(i),st */
clear_C1();
if (FPU_mul(&st(0), FPU_gettag0(), FPU_rm, control_word) >= 0)
FPU_pop();
}



void fsubrp(void)
{
/* fsubrp st(i),st */
clear_C1();
if ( FPU_sub(DEST_RM, FPU_rm, control_word) >= 0 )
FPU_pop();
/* fsubrp st(i),st */
clear_C1();
if (FPU_sub(DEST_RM, FPU_rm, control_word) >= 0)
FPU_pop();
}


void fsubp_(void)
{
/* fsubp st(i),st */
clear_C1();
if ( FPU_sub(REV|DEST_RM, FPU_rm, control_word) >= 0 )
FPU_pop();
/* fsubp st(i),st */
clear_C1();
if (FPU_sub(REV | DEST_RM, FPU_rm, control_word) >= 0)
FPU_pop();
}


void fdivrp(void)
{
/* fdivrp st(i),st */
clear_C1();
if ( FPU_div(DEST_RM, FPU_rm, control_word) >= 0 )
FPU_pop();
/* fdivrp st(i),st */
clear_C1();
if (FPU_div(DEST_RM, FPU_rm, control_word) >= 0)
FPU_pop();
}


void fdivp_(void)
{
/* fdivp st(i),st */
clear_C1();
if ( FPU_div(REV|DEST_RM, FPU_rm, control_word) >= 0 )
FPU_pop();
/* fdivp st(i),st */
clear_C1();
if (FPU_div(REV | DEST_RM, FPU_rm, control_word) >= 0)
FPU_pop();
}
1 change: 0 additions & 1 deletion arch/x86/math-emu/fpu_asm.h
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@

#define EXCEPTION FPU_exception


#define PARAM1 8(%ebp)
#define PARAM2 12(%ebp)
#define PARAM3 16(%ebp)
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