fadd.c
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#include <linux/types.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fadd(void *frD, void *frA, void *frB)
{
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif
FP_ADD_D(R, A, B);
#ifdef DEBUG
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}