    ECVT(III)                    4/30/73                    ECVT(III)

    NAME
         ecvt, fcvt - output conversion

    SYNOPSIS
         jsr  pc,ecvt

         jsr  pc,fcvt

         char *ecvt(value, ndigit, decpt, sign)
         double value;
         int ndigit, *decpt, *sign;

         char *fcvt(value, ndigit, decpt, sign)
         ...

    DESCRIPTION
         Ecvt is called with a floating point number in fr0.

         On  exit,  the  number  has  been converted into a string of
         ascii digits in a buffer pointed to by r0.   The  number  of
         digits produced is controlled by a global variable _ndigits.

         Moreover, the position of the decimal point is contained  in
         r2:  r2=0  means  the  d.p.  is  at the left hand end of the
         string of digits; r2>0 means the d.p. is within  or  to  the
         right of the string.

         The  sign  of  the number is indicated by r1 (0 for +; 1 for
         -).

         The low order digit has suffered decimal rounding (i. e. may
         have been carried into).

         From  C, the value is converted and a pointer to a null-ter-
         minated string of ndigit digits is returned.   The  position
         of  the  decimal  point  is  stored indirectly through decpt
         (negative means to the left of the returned digits).  If the
         sign  of the result is negative, the word pointed to by sign
         is non-zero, otherwise it is zero.

         Fcvt is identical to ecvt, except  that  the  correct  digit
         been  rounded  for  F-style  output  of the number of digits
         specified by _ndigits.

    SEE ALSO
         printf(III)

    BUGS

                                  - 1 -