diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5b2c5a832810bc408642e8439cfd3ffc088661b8..c8321e9a642ca3d6be2722794c4a98042511e20e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2002-05-08  Mark Mitchell  <mark@codesourcery.com>
+
+	* doc/invoke.texi: Document -mwindiss option.
+
 2002-05-08  Jason Merrill  <jason@redhat.com>
 
 	* dwarf2out.c (output_call_frame_info): Don't emit a CIE with no FDEs.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 30271da384ba75049dd2a9304e24b4bdf9e66bcf..d422bf2ecbf542e682c3cccee6bcc6178a6d0630 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -450,7 +450,7 @@ in the following sections.
 -mabi=altivec -mabi=no-altivec @gol
 -mprototype  -mno-prototype @gol
 -msim  -mmvme  -mads  -myellowknife  -memb -msdata @gol
--msdata=@var{opt}  -mvxworks -G @var{num} -pthread}
+-msdata=@var{opt}  -mvxworks -mwindiss -G @var{num} -pthread}
 
 @emph{RT Options}
 @gccoptlist{
@@ -6729,6 +6729,10 @@ On embedded PowerPC systems, assume that the startup module is called
 On System V.4 and embedded PowerPC systems, specify that you are
 compiling for a VxWorks system.
 
+@item -mwindiss
+@opindex mwindiss
+Specify that you are compiling for the WindISS simulation environment.
+
 @item -memb
 @opindex memb
 On embedded PowerPC systems, set the @var{PPC_EMB} bit in the ELF flags