fp_emu.h File Reference

#include <asm/math-emu.h>

Go to the source code of this file.

Macros
#define	IS_INF(a)   ((a)->exp == 0x7fff)
#define	IS_ZERO(a)   ((a)->mant.m64 == 0)
#define	fp_set_sr(bit)
#define	fp_set_quotient(quotient)
#define	fp_normalize_ext(fpreg)
#define	fp_copy_ext(dest, src)
#define	fp_monadic_check(dest, src)
#define	fp_dyadic_check(dest, src)
#define	fp_set_nan(dest)
#define	fp_set_ovrflw(dest)
#define	fp_conv_ext2long(src)
#define	fp_conv_long2ext(dest, src)

Variables
struct fp_ext	fp_QNaN
struct fp_ext	fp_Inf

Macro Definition Documentation

#define fp_conv_ext2long

(

src

)

Value:

({              \
    register struct fp_ext *__src asm ("a0") = src;     \
    register int __res asm ("d0");              \
                                \
    asm volatile ("jsr fp_conv_ext2long"            \
            : "=d" (__res) : "a" (__src)        \
            : "a1", "d1", "d2", "memory");      \
    __res;                          \
})

Definition at line 108 of file fp_emu.h.

#define fp_conv_long2ext	(		dest,
			src
	)

Value:

({              \
    register struct fp_ext *__dest asm ("a0") = dest;   \
    register int __src asm ("d0") = src;            \
                                \
    asm volatile ("jsr fp_conv_ext2long"            \
            : : "d" (__src), "a" (__dest)       \
            : "a1", "d1", "d2", "memory");      \
})

Definition at line 118 of file fp_emu.h.

#define fp_copy_ext	(		dest,
			src
	)

Value:

({              \
    *dest = *src;                       \
})

Definition at line 74 of file fp_emu.h.

#define fp_dyadic_check	(		dest,
			src
	)

Value:

({              \
    if (!fp_normalize_ext(dest))                \
        return dest;                    \
    if (!fp_normalize_ext(src)) {               \
        fp_copy_ext(dest, src);             \
        return dest;                    \
    }                           \
})

Definition at line 84 of file fp_emu.h.

#define fp_monadic_check	(		dest,
			src
	)

Value:

({              \
    fp_copy_ext(dest, src);                 \
    if (!fp_normalize_ext(dest))                \
        return dest;                    \
})

Definition at line 78 of file fp_emu.h.

#define fp_normalize_ext

(

fpreg

)

Value:

({              \
    register struct fp_ext *reg asm ("a0") = fpreg;     \
    register int res asm ("d0");                \
                                \
    asm volatile ("jsr fp_conv_ext2ext"         \
            : "=d" (res) : "a" (reg)        \
            : "a1", "d1", "d2", "memory");      \
    res;                            \
})

Definition at line 64 of file fp_emu.h.

#define fp_set_nan

(

dest

)

Value:

({                  \
    fp_set_sr(FPSR_EXC_OPERR);              \
    *dest = fp_QNaN;                    \
})

Definition at line 96 of file fp_emu.h.

#define fp_set_ovrflw

(

dest

)

Value:

({                  \
    fp_set_sr(FPSR_EXC_OVFL);               \
    dest->exp = 0x7fff;                 \
    dest->mant.m64 = 0;                 \
})

Definition at line 102 of file fp_emu.h.

#define fp_set_quotient

(

quotient

)

Value:

({              \
    FPDATA->fpsr &= 0xff00ffff;             \
    FPDATA->fpsr |= ((quotient) & 0xff) << 16;      \
})

Definition at line 56 of file fp_emu.h.

#define fp_set_sr

(

bit

)

Value:

({                  \
    FPDATA->fpsr |= 1 << (bit);             \
})

Definition at line 52 of file fp_emu.h.

#define IS_INF

(

a

)

((a)->exp == 0x7fff)

Definition at line 48 of file fp_emu.h.

#define IS_ZERO

(

a

)

((a)->mant.m64 == 0)

Definition at line 49 of file fp_emu.h.

Variable Documentation

struct fp_ext fp_Inf

Definition at line 26 of file fp_arith.c.

struct fp_ext fp_QNaN

Definition at line 20 of file fp_arith.c.