Path: utzoo!attcan!uunet!husc6!think!ames!pasteur!ucbvax!SNYCENVM.BITNET!EPRF
From: EPRF@SNYCENVM.BITNET (Peter Flass)
Newsgroups: comp.os.vms
Subject: Re: merging assembly with high-level languauges
Message-ID: <8805251540.AA03090@ucbvax.Berkeley.EDU>
Date: 23 May 88 19:13:19 GMT
References: <tada@athena.mit.edu>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 16

>
>I need some simple examples on how to combine assembly code with high
>level language source.  For example, suppose i want to write some C
>code, but tweak the machine code it produces.  I have a vague idea on
>how to proceed (compile the C source with the /machine option, then
>edit the listing to make the changes, then assemble the machine code,
>then link everything) but i need some examples to get me started.
>
 Last time I did anything like this I swore off for life!  For what
my two cents is worth you'd be *MUCH* better off leaving the compiled
code alone and putting your 'tweaked' code into a handcoded Macro function
(using the compiler output as a model if needed).
  Otherwise every time you make a source change you have to remember
to make your Macro changes again and you're at the mercy of the compiler
as to whether they'll fit.
   - Pete