--- /dev/null
+#define _FP_W_TYPE_SIZE 64
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+typedef int TItype __attribute__ ((mode (TI)));
+typedef unsigned int UTItype __attribute__ ((mode (TI)));
+
+#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype))
+
+/* The type of the result of a floating point comparison. This must
+ match `__libgcc_cmp_return__' in GCC for the target. */
+typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
+#define CMPtype __gcc_CMPtype
+
+#define _FP_MUL_MEAT_Q(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S _FP_QNANBIT_S
+#define _FP_NANFRAC_D _FP_QNANBIT_D
+#define _FP_NANFRAC_E _FP_QNANBIT_E, 0
+#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0
+#define _FP_NANSIGN_S 1
+#define _FP_NANSIGN_D 1
+#define _FP_NANSIGN_E 1
+#define _FP_NANSIGN_Q 1
+
+#define _FP_KEEPNANFRACP 1
+
+/* Here is something Intel misdesigned: the specs don't define
+ the case where we have two NaNs with same mantissas, but
+ different sign. Different operations pick up different NaNs. */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ if (_FP_FRAC_GT_##wc(X, Y) \
+ || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
+ { \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ } \
+ else \
+ { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,Y); \
+ } \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+#define FP_EX_INVALID 0x01
+#define FP_EX_DENORM 0x02
+#define FP_EX_DIVZERO 0x04
+#define FP_EX_OVERFLOW 0x08
+#define FP_EX_UNDERFLOW 0x10
+#define FP_EX_INEXACT 0x20
+
+struct fenv
+{
+ unsigned short int __control_word;
+ unsigned short int __unused1;
+ unsigned short int __status_word;
+ unsigned short int __unused2;
+ unsigned short int __tags;
+ unsigned short int __unused3;
+ unsigned int __eip;
+ unsigned short int __cs_selector;
+ unsigned int __opcode:11;
+ unsigned int __unused4:5;
+ unsigned int __data_offset;
+ unsigned short int __data_selector;
+ unsigned short int __unused5;
+};
+
+#define FP_HANDLE_EXCEPTIONS \
+ do { \
+ if (_fex & FP_EX_INVALID) \
+ { \
+ float f = 0.0; \
+ __asm__ __volatile__ ("divss %0, %0 " : : "x" (f)); \
+ } \
+ if (_fex & FP_EX_DIVZERO) \
+ { \
+ float f = 1.0, g = 0.0; \
+ __asm__ __volatile__ ("divss %1, %0" : : "x" (f), "x" (g)); \
+ } \
+ if (_fex & FP_EX_OVERFLOW) \
+ { \
+ struct fenv temp; \
+ __asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \
+ temp.__status_word |= FP_EX_OVERFLOW; \
+ __asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \
+ __asm__ __volatile__ ("fwait"); \
+ } \
+ if (_fex & FP_EX_UNDERFLOW) \
+ { \
+ struct fenv temp; \
+ __asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \
+ temp.__status_word |= FP_EX_UNDERFLOW; \
+ __asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \
+ __asm__ __volatile__ ("fwait"); \
+ } \
+ if (_fex & FP_EX_INEXACT) \
+ { \
+ struct fenv temp; \
+ __asm__ __volatile__ ("fnstenv %0" : "=m" (temp)); \
+ temp.__status_word |= FP_EX_INEXACT; \
+ __asm__ __volatile__ ("fldenv %0" : : "m" (temp)); \
+ __asm__ __volatile__ ("fwait"); \
+ } \
+ } while (0)
+
+#define FP_RND_NEAREST 0
+#define FP_RND_ZERO 0xc00
+#define FP_RND_PINF 0x800
+#define FP_RND_MINF 0x400
+
+#define _FP_DECL_EX \
+ unsigned short _fcw __attribute__ ((unused)) = FP_RND_NEAREST
+
+#define FP_INIT_ROUNDMODE \
+ do { \
+ __asm__ ("fnstcw %0" : "=m" (_fcw)); \
+ } while (0)
+
+#define FP_ROUNDMODE (_fcw & 0xc00)
+
+#define __LITTLE_ENDIAN 1234
+#define __BIG_ENDIAN 4321
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+/* Define ALIASNAME as a strong alias for NAME. */
+#if defined __MACH__
+/* Mach-O doesn't support aliasing. If these functions ever return
+ anything but CMPtype we need to revisit this... */
+#define strong_alias(name, aliasname) \
+ CMPtype aliasname (TFtype a, TFtype b) { return name(a, b); }
+#else
+# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
+# define _strong_alias(name, aliasname) \
+ extern __typeof (name) aliasname __attribute__ ((alias (#name)));
+#endif
projects / msp430-gcc.git / blobdiff