This is TeXX, Version 2.2 (INITEX)  11 JUN 1987 22:47
**tmp
(tmp.tex (basic.tex)
{vertical mode: \tracingstats}
{\tracingpages}
{\tracingoutput}
{\tracinglostchars}
{\tracingmacros}
{\tracingparagraphs}
{\tracingrestores}
{\showboxbreadth}
{\showboxdepth}
{\errorstopmode}

{\def}
{blank space  }
{\xchar}
{horizontal mode: \xchar}
{\hbox}
 <d
{restricted horizontal mode: \xchar}

\~#1->{\accent "7E #1}
#1<-x
{begin-group character {}
{\accent}
{end-group character }}

\~#1->{\accent "7E #1}
#1<-X
{begin-group character {}
{\accent}
{end-group character }}

\~#1->{\accent "7E #1}
#1<-\xchar '570
{begin-group character {}
{\accent}
{end-group character }}

\~#1->{\accent "7E #1}
#1<-\xchar '930
{begin-group character {}
{\accent}
! Missing number, treated as zero.
<to be read again> 
                   9
<argument> \xchar '9
                    30
\~#1->{\accent "7E #1
                     }
l.7 ...\xchar'570}\~{\xchar'930}
                                }
? e
 
Here is how much of TeX's memory you used:
 36 strings out of 1841
 200 string characters out of 9402
 1072 words of memory out of 3000
 328 multiletter control sequences out of 2100
 5687 words of font info for 19 fonts, out of 20000 for 75
 0 hyphenation exceptions out of 307
 3i,1n,1p,85b,11s stack positions out of 200i,40n,60p,500b,600s
No pages of output.