| 1 |
272 |
jeremybenn |
#define _FP_W_TYPE_SIZE 32
|
| 2 |
|
|
#define _FP_W_TYPE unsigned int
|
| 3 |
|
|
#define _FP_WS_TYPE signed int
|
| 4 |
|
|
#define _FP_I_TYPE int
|
| 5 |
|
|
|
| 6 |
|
|
/* The type of the result of a floating point comparison. This must
|
| 7 |
|
|
match `__libgcc_cmp_return__' in GCC for the target. */
|
| 8 |
|
|
typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
|
| 9 |
|
|
#define CMPtype __gcc_CMPtype
|
| 10 |
|
|
|
| 11 |
|
|
#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
|
| 12 |
|
|
__asm__ ("add{l} {%11,%3|%3,%11}\n\t" \
|
| 13 |
|
|
"adc{l} {%9,%2|%2,%9}\n\t" \
|
| 14 |
|
|
"adc{l} {%7,%1|%1,%7}\n\t" \
|
| 15 |
|
|
"adc{l} {%5,%0|%0,%5}" \
|
| 16 |
|
|
: "=r" ((USItype) (r3)), \
|
| 17 |
|
|
"=&r" ((USItype) (r2)), \
|
| 18 |
|
|
"=&r" ((USItype) (r1)), \
|
| 19 |
|
|
"=&r" ((USItype) (r0)) \
|
| 20 |
|
|
: "%0" ((USItype) (x3)), \
|
| 21 |
|
|
"g" ((USItype) (y3)), \
|
| 22 |
|
|
"%1" ((USItype) (x2)), \
|
| 23 |
|
|
"g" ((USItype) (y2)), \
|
| 24 |
|
|
"%2" ((USItype) (x1)), \
|
| 25 |
|
|
"g" ((USItype) (y1)), \
|
| 26 |
|
|
"%3" ((USItype) (x0)), \
|
| 27 |
|
|
"g" ((USItype) (y0)))
|
| 28 |
|
|
#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \
|
| 29 |
|
|
__asm__ ("add{l} {%8,%2|%2,%8}\n\t" \
|
| 30 |
|
|
"adc{l} {%6,%1|%1,%6}\n\t" \
|
| 31 |
|
|
"adc{l} {%4,%0|%0,%4}" \
|
| 32 |
|
|
: "=r" ((USItype) (r2)), \
|
| 33 |
|
|
"=&r" ((USItype) (r1)), \
|
| 34 |
|
|
"=&r" ((USItype) (r0)) \
|
| 35 |
|
|
: "%0" ((USItype) (x2)), \
|
| 36 |
|
|
"g" ((USItype) (y2)), \
|
| 37 |
|
|
"%1" ((USItype) (x1)), \
|
| 38 |
|
|
"g" ((USItype) (y1)), \
|
| 39 |
|
|
"%2" ((USItype) (x0)), \
|
| 40 |
|
|
"g" ((USItype) (y0)))
|
| 41 |
|
|
#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
|
| 42 |
|
|
__asm__ ("sub{l} {%11,%3|%3,%11}\n\t" \
|
| 43 |
|
|
"sbb{l} {%9,%2|%2,%9}\n\t" \
|
| 44 |
|
|
"sbb{l} {%7,%1|%1,%7}\n\t" \
|
| 45 |
|
|
"sbb{l} {%5,%0|%0,%5}" \
|
| 46 |
|
|
: "=r" ((USItype) (r3)), \
|
| 47 |
|
|
"=&r" ((USItype) (r2)), \
|
| 48 |
|
|
"=&r" ((USItype) (r1)), \
|
| 49 |
|
|
"=&r" ((USItype) (r0)) \
|
| 50 |
|
|
: "0" ((USItype) (x3)), \
|
| 51 |
|
|
"g" ((USItype) (y3)), \
|
| 52 |
|
|
"1" ((USItype) (x2)), \
|
| 53 |
|
|
"g" ((USItype) (y2)), \
|
| 54 |
|
|
"2" ((USItype) (x1)), \
|
| 55 |
|
|
"g" ((USItype) (y1)), \
|
| 56 |
|
|
"3" ((USItype) (x0)), \
|
| 57 |
|
|
"g" ((USItype) (y0)))
|
| 58 |
|
|
#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \
|
| 59 |
|
|
__asm__ ("sub{l} {%8,%2|%2,%8}\n\t" \
|
| 60 |
|
|
"sbb{l} {%6,%1|%1,%6}\n\t" \
|
| 61 |
|
|
"sbb{l} {%4,%0|%0,%4}" \
|
| 62 |
|
|
: "=r" ((USItype) (r2)), \
|
| 63 |
|
|
"=&r" ((USItype) (r1)), \
|
| 64 |
|
|
"=&r" ((USItype) (r0)) \
|
| 65 |
|
|
: "0" ((USItype) (x2)), \
|
| 66 |
|
|
"g" ((USItype) (y2)), \
|
| 67 |
|
|
"1" ((USItype) (x1)), \
|
| 68 |
|
|
"g" ((USItype) (y1)), \
|
| 69 |
|
|
"2" ((USItype) (x0)), \
|
| 70 |
|
|
"g" ((USItype) (y0)))
|
| 71 |
|
|
|
| 72 |
|
|
|
| 73 |
|
|
#define _FP_MUL_MEAT_Q(R,X,Y) \
|
| 74 |
|
|
_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
|
| 75 |
|
|
|
| 76 |
|
|
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
|
| 77 |
|
|
|
| 78 |
|
|
#define _FP_NANFRAC_S _FP_QNANBIT_S
|
| 79 |
|
|
#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
|
| 80 |
|
|
/* Even if XFmode is 12byte, we have to pad it to
|
| 81 |
|
|
16byte since soft-fp emulation is done in 16byte. */
|
| 82 |
|
|
#define _FP_NANFRAC_E _FP_QNANBIT_E, 0, 0, 0
|
| 83 |
|
|
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
|
| 84 |
|
|
#define _FP_NANSIGN_S 1
|
| 85 |
|
|
#define _FP_NANSIGN_D 1
|
| 86 |
|
|
#define _FP_NANSIGN_E 1
|
| 87 |
|
|
#define _FP_NANSIGN_Q 1
|
| 88 |
|
|
|
| 89 |
|
|
#define _FP_KEEPNANFRACP 1
|
| 90 |
|
|
|
| 91 |
|
|
/* Here is something Intel misdesigned: the specs don't define
|
| 92 |
|
|
the case where we have two NaNs with same mantissas, but
|
| 93 |
|
|
different sign. Different operations pick up different NaNs. */
|
| 94 |
|
|
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
|
| 95 |
|
|
do { \
|
| 96 |
|
|
if (_FP_FRAC_GT_##wc(X, Y) \
|
| 97 |
|
|
|| (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
|
| 98 |
|
|
{ \
|
| 99 |
|
|
R##_s = X##_s; \
|
| 100 |
|
|
_FP_FRAC_COPY_##wc(R,X); \
|
| 101 |
|
|
} \
|
| 102 |
|
|
else \
|
| 103 |
|
|
{ \
|
| 104 |
|
|
R##_s = Y##_s; \
|
| 105 |
|
|
_FP_FRAC_COPY_##wc(R,Y); \
|
| 106 |
|
|
} \
|
| 107 |
|
|
R##_c = FP_CLS_NAN; \
|
| 108 |
|
|
} while (0)
|
| 109 |
|
|
|
| 110 |
|
|
#define FP_EX_INVALID 0x01
|
| 111 |
|
|
#define FP_EX_DENORM 0x02
|
| 112 |
|
|
#define FP_EX_DIVZERO 0x04
|
| 113 |
|
|
#define FP_EX_OVERFLOW 0x08
|
| 114 |
|
|
#define FP_EX_UNDERFLOW 0x10
|
| 115 |
|
|
#define FP_EX_INEXACT 0x20
|
| 116 |
|
|
|
| 117 |
|
|
struct fenv
|
| 118 |
|
|
{
|
| 119 |
|
|
unsigned short int __control_word;
|
| 120 |
|
|
unsigned short int __unused1;
|
| 121 |
|
|
unsigned short int __status_word;
|
| 122 |
|
|
unsigned short int __unused2;
|
| 123 |
|
|
unsigned short int __tags;
|
| 124 |
|
|
unsigned short int __unused3;
|
| 125 |
|
|
unsigned int __eip;
|
| 126 |
|
|
unsigned short int __cs_selector;
|
| 127 |
|
|
unsigned int __opcode:11;
|
| 128 |
|
|
unsigned int __unused4:5;
|
| 129 |
|
|
unsigned int __data_offset;
|
| 130 |
|
|
unsigned short int __data_selector;
|
| 131 |
|
|
unsigned short int __unused5;
|
| 132 |
|
|
};
|
| 133 |
|
|
|
| 134 |
|
|
#define FP_HANDLE_EXCEPTIONS \
|
| 135 |
|
|
do { \
|
| 136 |
|
|
if (_fex & FP_EX_INVALID) \
|
| 137 |
|
|
{ \
|
| 138 |
|
|
float f = 0.0; \
|
| 139 |
|
|
__asm__ __volatile__ ("fdiv {%y0, %0|%0, %y0}" : "+t" (f)); \
|
| 140 |
|
|
__asm__ __volatile__ ("fwait"); \
|
| 141 |
|
|
} \
|
| 142 |
|
|
if (_fex & FP_EX_DIVZERO) \
|
| 143 |
|
|
{ \
|
| 144 |
|
|
float f = 1.0, g = 0.0; \
|
| 145 |
|
|
__asm__ __volatile__ ("fdivp {%0, %y1|%y1, %0}" \
|
| 146 |
|
|
: "+t" (f) : "u" (g) \
|
| 147 |
|
|
: "st(1)"); \
|
| 148 |
|
|
__asm__ __volatile__ ("fwait"); \
|
| 149 |
|
|
} \
|
| 150 |
|
|
if (_fex & FP_EX_OVERFLOW) \
|
| 151 |
|
|
{ \
|
| 152 |
|
|
struct fenv temp; \
|
| 153 |
|
|
__asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \
|
| 154 |
|
|
temp.__status_word |= FP_EX_OVERFLOW; \
|
| 155 |
|
|
__asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \
|
| 156 |
|
|
__asm__ __volatile__ ("fwait"); \
|
| 157 |
|
|
} \
|
| 158 |
|
|
if (_fex & FP_EX_UNDERFLOW) \
|
| 159 |
|
|
{ \
|
| 160 |
|
|
struct fenv temp; \
|
| 161 |
|
|
__asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \
|
| 162 |
|
|
temp.__status_word |= FP_EX_UNDERFLOW; \
|
| 163 |
|
|
__asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \
|
| 164 |
|
|
__asm__ __volatile__ ("fwait"); \
|
| 165 |
|
|
} \
|
| 166 |
|
|
if (_fex & FP_EX_INEXACT) \
|
| 167 |
|
|
{ \
|
| 168 |
|
|
struct fenv temp; \
|
| 169 |
|
|
__asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \
|
| 170 |
|
|
temp.__status_word |= FP_EX_INEXACT; \
|
| 171 |
|
|
__asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \
|
| 172 |
|
|
__asm__ __volatile__ ("fwait"); \
|
| 173 |
|
|
} \
|
| 174 |
|
|
} while (0)
|
| 175 |
|
|
|
| 176 |
|
|
#define FP_RND_NEAREST 0
|
| 177 |
|
|
#define FP_RND_ZERO 0xc00
|
| 178 |
|
|
#define FP_RND_PINF 0x800
|
| 179 |
|
|
#define FP_RND_MINF 0x400
|
| 180 |
|
|
|
| 181 |
|
|
#define _FP_DECL_EX \
|
| 182 |
|
|
unsigned short _fcw __attribute__ ((unused)) = FP_RND_NEAREST
|
| 183 |
|
|
|
| 184 |
|
|
#define FP_INIT_ROUNDMODE \
|
| 185 |
|
|
do { \
|
| 186 |
|
|
__asm__ ("fnstcw %0" : "=m" (_fcw)); \
|
| 187 |
|
|
} while (0)
|
| 188 |
|
|
|
| 189 |
|
|
#define FP_ROUNDMODE (_fcw & 0xc00)
|
| 190 |
|
|
|
| 191 |
|
|
#define __LITTLE_ENDIAN 1234
|
| 192 |
|
|
#define __BIG_ENDIAN 4321
|
| 193 |
|
|
|
| 194 |
|
|
#define __BYTE_ORDER __LITTLE_ENDIAN
|
| 195 |
|
|
|
| 196 |
|
|
/* Define ALIASNAME as a strong alias for NAME. */
|
| 197 |
|
|
#if defined __MACH__
|
| 198 |
|
|
/* Mach-O doesn't support aliasing. If these functions ever return
|
| 199 |
|
|
anything but CMPtype we need to revisit this... */
|
| 200 |
|
|
#define strong_alias(name, aliasname) \
|
| 201 |
|
|
CMPtype aliasname (TFtype a, TFtype b) { return name(a, b); }
|
| 202 |
|
|
#else
|
| 203 |
|
|
# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
|
| 204 |
|
|
# define _strong_alias(name, aliasname) \
|
| 205 |
|
|
extern __typeof (name) aliasname __attribute__ ((alias (#name)));
|
| 206 |
|
|
#endif
|
