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fmuls.c

#include <linux/types.h>
#include <linux/errno.h>
#include <asm/uaccess.h>

#include "soft-fp.h"
#include "double.h"
#include "single.h"

int
fmuls(void *frD, void *frA, void *frB)
{
      FP_DECL_D(A);
      FP_DECL_D(B);
      FP_DECL_D(R);
      int ret = 0;

#ifdef DEBUG
      printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif

      __FP_UNPACK_D(A, frA);
      __FP_UNPACK_D(B, frB);

#ifdef DEBUG
      printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
             A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
      printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
             B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
#endif

      if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
          (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
            ret |= EFLAG_VXIMZ;

      FP_MUL_D(R, A, B);

#ifdef DEBUG
      printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
             R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
#endif

      return (ret | __FP_PACK_DS(frD, R));
}

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