[project @ 2002-03-04 14:39:46 by keithw]

Explain the *other* thing AP_UPDs are used for (not just Hugs, but
also stack-freezing for raiseAsync()).

diff --git a/ghc/docs/rts/rts.tex b/ghc/docs/rts/rts.tex
index 9d742ae..158ae7e 100644 (file)
--- a/ghc/docs/rts/rts.tex
+++ b/ghc/docs/rts/rts.tex
@@ -2135,8 +2135,10 @@ both @PAP@ and @PAP_STATIC@.
 
 \Subsubsection{\texttt{AP\_UPD} objects}{AP_UPD}
 
-@AP_UPD@ objects are used to represent thunks built by Hugs.  The only
-distintion between an @AP_UPD@ and a @PAP@ is that an @AP_UPD@ is
+@AP_UPD@ objects are used to represent thunks built by Hugs, and to
+save the currently-active computations when performing @raiseAsync()@.
+The only
+distinction between an @AP_UPD@ and a @PAP@ is that an @AP_UPD@ is
 updateable.
 
 \begin{center}