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diff --git a/docs/comm/rts-libs/stgc.html b/docs/comm/rts-libs/stgc.html deleted file mode 100644 index 196ec9150d..0000000000 --- a/docs/comm/rts-libs/stgc.html +++ /dev/null @@ -1,45 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> -<html> - <head> - <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"> - <title>The GHC Commentary - Spineless Tagless C</title> - </head> - - <body BGCOLOR="FFFFFF"> - <h1>The GHC Commentary - Spineless Tagless C</h1> - <p> - The C code generated by GHC doesn't use higher-level features of C to be - able to control as precisely as possible what code is generated. - Moreover, it uses special features of gcc (such as, first class labels) - to produce more efficient code. - <p> - STG C makes ample use of C's macro language to define idioms, which also - reduces the size of the generated C code (thus, reducing I/O times). - These macros are defined in the C headers located in GHC's <a - href="http://cvs.haskell.org/cgi-bin/cvsweb.cgi/fptools/ghc/includes/"><code>includes</code></a> - directory. - - <h4><code>TailCalls.h</code></h4> - <p> - <a - href="http://cvs.haskell.org/cgi-bin/cvsweb.cgi/fptools/ghc/includes/TailCalls.h"><code>TailCalls.h</code></a> - defines how tail calls are implemented - and in particular - optimised - in GHC generated code. The default case, for an architecture for which - GHC is not optimised, is to use the mini interpreter described in the <a - href="http://research.microsoft.com/copyright/accept.asp?path=/users/simonpj/papers/spineless-tagless-gmachine.ps.gz&pub=34">STG paper.</a> - <p> - For supported architectures, various tricks are used to generate - assembler implementing proper tail calls. On i386, gcc's first class - labels are used to directly jump to a function pointer. Furthermore, - markers of the form <code>--- BEGIN ---</code> and <code>--- END - ---</code> are added to the assembly right after the function prologue - and before the epilogue. These markers are used by <a - href="../the-beast/mangler.html">the Evil Mangler.</a> - - <p><small> -<!-- hhmts start --> -Last modified: Wed Aug 8 19:28:29 EST 2001 -<!-- hhmts end --> - </small> - </body> -</html> |