Xref: utzoo comp.lang.c:8889 comp.sys.ibm.pc:14092
Path: utzoo!mnetor!uunet!steinmetz!ge-dab!codas!ateng!chip
From: chip@ateng.UUCP (Chip Salzenberg)
Newsgroups: comp.lang.c,comp.sys.ibm.pc
Subject: Re: cdecl keyword
Message-ID: <213@ateng.UUCP>
Date: 4 Apr 88 17:13:46 GMT
References: <1238@wjvax.UUCP> <297@ho7cad.ATT.COM> <1242@wjvax.UUCP> <3867@super.upenn.edu> <185@premise.ZONE1.COM>
Reply-To: chip@ateng.UUCP (Chip Salzenberg)
Organization: A T Engineering, Tampa, FL
Lines: 15
Keywords: cdecl pascal Microsquishy

In article <185@premise.ZONE1.COM> chang@premise.ZONE1.COM (John Chang) writes:
>However, the right to left parameter passing takes more code space
>(one extra instruction to fix the stack after a function call) and
>hence takes longer to execute than 'pascal' calling convention 
>(left-to-right parameter passing).

The Pascal calling sequence is faster than C, but for a different reason.
The Pascal calling sequence is not faster because of its backwards (:-])
order, but because it does not allow variadic functions.  Since the called
function is always called with the same number of arguments, it can clean
up the stack when it returns instead of making the caller do it.
--
Chip Salzenberg                 "chip@ateng.UU.NET" or "codas!ateng!chip"
A T Engineering                 My employer's opinions are a trade secret.
       "Anything that works is better than anything that doesn't."