% This macro source file is from the four volume series % "TeX in Practice" by Stephan von Bechtolsheim, published % 1993 by Springer-Verlag, New York. % Copyright 1993 Stephan von Bechtolsheim. % No warranty or liability is assumed. % This macro may be copied freely if no fees other than % media cost or shipping charges are charged and as long % as this copyright and the following source code itself % is not changed. Please see the series for further information. % % Version: 1.0 % Date: May 1, 1993 % % % This source code is documented in 27.1.4.1, p. III-404. % Original source in file "macros7.TEX", starting line 400. \wlog{L: "hex.tip" ["macros7.TEX," l. 400, p. III-404]}% % This file DOES belong to format "texip." \def\Hex #1{% {% \count0 = #1% \count1 = #1% \divide\count0 by 16 \count2 = \count0 \multiply \count2 by -16 \advance \count1 by \count2 \ifnum \count0 > 0 \Hex{\count0}% \fi \HexDigit{\count1}% }% } \def\HexDigit #1{% {% \count0 = #1\relax \ifnum \count0 < 10 \number\count0 % or \the\count0 \else \advance\count0 by -10 \advance\count0 by `A \char\count0 \fi }% }