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-rw-r--r--arch/x86/math-emu/fpu_tags.c94
1 files changed, 41 insertions, 53 deletions
diff --git a/arch/x86/math-emu/fpu_tags.c b/arch/x86/math-emu/fpu_tags.c
index cb436fe20e4c..d9c657cd7746 100644
--- a/arch/x86/math-emu/fpu_tags.c
+++ b/arch/x86/math-emu/fpu_tags.c
@@ -14,114 +14,102 @@
#include "fpu_system.h"
#include "exception.h"
-
void FPU_pop(void)
{
- fpu_tag_word |= 3 << ((top & 7)*2);
- top++;
+ fpu_tag_word |= 3 << ((top & 7) * 2);
+ top++;
}
-
int FPU_gettag0(void)
{
- return (fpu_tag_word >> ((top & 7)*2)) & 3;
+ return (fpu_tag_word >> ((top & 7) * 2)) & 3;
}
-
int FPU_gettagi(int stnr)
{
- return (fpu_tag_word >> (((top+stnr) & 7)*2)) & 3;
+ return (fpu_tag_word >> (((top + stnr) & 7) * 2)) & 3;
}
-
int FPU_gettag(int regnr)
{
- return (fpu_tag_word >> ((regnr & 7)*2)) & 3;
+ return (fpu_tag_word >> ((regnr & 7) * 2)) & 3;
}
-
void FPU_settag0(int tag)
{
- int regnr = top;
- regnr &= 7;
- fpu_tag_word &= ~(3 << (regnr*2));
- fpu_tag_word |= (tag & 3) << (regnr*2);
+ int regnr = top;
+ regnr &= 7;
+ fpu_tag_word &= ~(3 << (regnr * 2));
+ fpu_tag_word |= (tag & 3) << (regnr * 2);
}
-
void FPU_settagi(int stnr, int tag)
{
- int regnr = stnr+top;
- regnr &= 7;
- fpu_tag_word &= ~(3 << (regnr*2));
- fpu_tag_word |= (tag & 3) << (regnr*2);
+ int regnr = stnr + top;
+ regnr &= 7;
+ fpu_tag_word &= ~(3 << (regnr * 2));
+ fpu_tag_word |= (tag & 3) << (regnr * 2);
}
-
void FPU_settag(int regnr, int tag)
{
- regnr &= 7;
- fpu_tag_word &= ~(3 << (regnr*2));
- fpu_tag_word |= (tag & 3) << (regnr*2);
+ regnr &= 7;
+ fpu_tag_word &= ~(3 << (regnr * 2));
+ fpu_tag_word |= (tag & 3) << (regnr * 2);
}
-
int FPU_Special(FPU_REG const *ptr)
{
- int exp = exponent(ptr);
-
- if ( exp == EXP_BIAS+EXP_UNDER )
- return TW_Denormal;
- else if ( exp != EXP_BIAS+EXP_OVER )
- return TW_NaN;
- else if ( (ptr->sigh == 0x80000000) && (ptr->sigl == 0) )
- return TW_Infinity;
- return TW_NaN;
+ int exp = exponent(ptr);
+
+ if (exp == EXP_BIAS + EXP_UNDER)
+ return TW_Denormal;
+ else if (exp != EXP_BIAS + EXP_OVER)
+ return TW_NaN;
+ else if ((ptr->sigh == 0x80000000) && (ptr->sigl == 0))
+ return TW_Infinity;
+ return TW_NaN;
}
-
int isNaN(FPU_REG const *ptr)
{
- return ( (exponent(ptr) == EXP_BIAS+EXP_OVER)
- && !((ptr->sigh == 0x80000000) && (ptr->sigl == 0)) );
+ return ((exponent(ptr) == EXP_BIAS + EXP_OVER)
+ && !((ptr->sigh == 0x80000000) && (ptr->sigl == 0)));
}
-
int FPU_empty_i(int stnr)
{
- int regnr = (top+stnr) & 7;
+ int regnr = (top + stnr) & 7;
- return ((fpu_tag_word >> (regnr*2)) & 3) == TAG_Empty;
+ return ((fpu_tag_word >> (regnr * 2)) & 3) == TAG_Empty;
}
-
-int FPU_stackoverflow(FPU_REG **st_new_ptr)
+int FPU_stackoverflow(FPU_REG ** st_new_ptr)
{
- *st_new_ptr = &st(-1);
+ *st_new_ptr = &st(-1);
- return ((fpu_tag_word >> (((top - 1) & 7)*2)) & 3) != TAG_Empty;
+ return ((fpu_tag_word >> (((top - 1) & 7) * 2)) & 3) != TAG_Empty;
}
-
void FPU_copy_to_regi(FPU_REG const *r, u_char tag, int stnr)
{
- reg_copy(r, &st(stnr));
- FPU_settagi(stnr, tag);
+ reg_copy(r, &st(stnr));
+ FPU_settagi(stnr, tag);
}
void FPU_copy_to_reg1(FPU_REG const *r, u_char tag)
{
- reg_copy(r, &st(1));
- FPU_settagi(1, tag);
+ reg_copy(r, &st(1));
+ FPU_settagi(1, tag);
}
void FPU_copy_to_reg0(FPU_REG const *r, u_char tag)
{
- int regnr = top;
- regnr &= 7;
+ int regnr = top;
+ regnr &= 7;
- reg_copy(r, &st(0));
+ reg_copy(r, &st(0));
- fpu_tag_word &= ~(3 << (regnr*2));
- fpu_tag_word |= (tag & 3) << (regnr*2);
+ fpu_tag_word &= ~(3 << (regnr * 2));
+ fpu_tag_word |= (tag & 3) << (regnr * 2);
}