--- gforth/doc/gforth.1	1999/04/16 22:19:51	1.4
+++ gforth/doc/gforth.1	2000/09/23 18:20:19	1.5
@@ -5,10 +5,11 @@
 ..
 .TH GForth 1 "April 14, 1999" \" -*- nroff -*-
 .SH NAME
-gforth, gforthmi \- a fast and portable Forth system
+gforth, gforth-fast, gforthmi \- a fast and portable Forth system
 .SH SYNOPSIS
 
 \fCgforth\fR [initialization options] [image-specific options]
+\fCgforth-fast\fR [initialization options] [image-specific options]
 
 \fCgforthmi\fR \fIfilename\fR [initialization options] [image-specific options]
 .SH DESCRIPTION
@@ -42,6 +43,12 @@ starts the system and goes into interact
 loads and interprets the files \fCfile1\fR and \fCfile2\fR, then
 exits.
 
+\fCgforth-fast\fR
+
+is the same as \fCgforth-fast\fR, except that it does not support
+accurate backtraces for signals, and is faster by up to a factor of 2.
+Use it for debugged, performance-critical programs such as benchmarks.
+
 \fCgforthmi asm.fi \-m 1M asm.fs\fR
 
 creates an image \fCasm.fi\fR that has a default dictionary size of