rstr.F

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C     REAL
#include "my_real.inc"
      my_real
     .   FUNCTION rstr(STR)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      CHARACTER str*8
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "ascchr_c.inc"
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER is, iexp, mant11, mant12, mant21, mant22, mant31, mant32,
     .   ism, ise, mant1, mant2, mant3
C-----------------------------------------------
      is=iascod(ichar(str(1:1)))-1
      iexp=iascod(ichar(str(2:2)))
      mant11=iascod(ichar(str(3:3)))
      mant12=iascod(ichar(str(4:4)))
      mant21=iascod(ichar(str(5:5)))
      mant22=iascod(ichar(str(6:6)))
      mant31=iascod(ichar(str(7:7)))
      mant32=iascod(ichar(str(8:8)))
C
      ism=is/2
      ise=is-2*ism
      mant1=mant11*32+mant12
      mant2=mant21*32+mant22
      mant3=mant31*32+mant32
C
      IF(ise==1)iexp=-iexp
      rstr=mant3+mant2*1000+mant1*1000000
      rstr=rstr/ep9
      rstr=rstr*ten**iexp
      IF(ism==1)rstr=-rstr
C
      RETURN
      END