Welcome to the 64 bit Sub Forum

[hutch--]

A number of members have indicated that they are interested in having a sub forum for the coming 64 bit x86 hardware. there is no garrantee that you will get an answer as this is still a developing area both in assembler and OS design but at least you have somewhere to post it.  :bg

[MazeGen]

I'm a newbie in 64-bit programming, but I try to reply to answers, as MASM 64 became my basic development tool.

[hutch--]

Karel,

If you have some 64 bit code going, it would be interesting to see what it looks like.

[MazeGen]

Just a few points for now:

Important articles:

• Interesting 64-bit assembler articles with Hello World example:
  http://www.codegurus.be/codegurus/Programming/assembler&win64_en.htm
  
• General comprehensive articles about low-level x64 principles:
  http://msdn.microsoft.com/msdnmag/issues/06/05/x64/default.aspx
  http://msdn2.microsoft.com/en-us/library/7kcdt6fy(VS.80).aspx

These versions of ML64 came to my knowledge:

• 8.00.2207.0: One of the very first versions. Doesn't support many features.
• 8.00.40310.49: Comes with PSDK Windows Server 2003 R2 and Windows DDK. This version contains at least one annoying bug and therefore is unusable for real coding!
• 8.00.40607.16: Came with VS2005 beta 1. I didn't test it, probably buggy.
• 8.00.50215.44: Came with VS2005 beta 2. Seems to be as stable as the following.
• 8.00.50727.42: The latest version from VS2005. PROC directive doesn't support new calling convention, more see below.

Some features of ML64:

• The only possible calling convention is the new win64 FASTCALL
• PROC directive doesn't support this convention :(, it behaves as STDCALL convention
• PROTO is supported, INVOKE is not supported

Manhattan have offered me some macros to enable FASTCALL procedures, but their syntax is ugly. I'll see if I can simplify the syntax.

Credit: Thanks to Manhattan for most of these informations.

[Mark Jones]

Here is a link to some AMD64 pages, chock-full of good info:
Windows: http://www.amd.com/athlonx86
    http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_7044,00.html
    http://developer.amd.com/
Linux: http://www.x86-64.org/

[tofu-sensei]

I also hacked together some macros to automate creation of proper prologue and epilogue code, setting up the stack and add a (kinda crude) way to access local variables. Still need to figure out how to implement exception handlers that actually do something useful ;)

[MazeGen]

tofu-sensei,

I would be very interested in your macros. Could you post them here (and allow their modification)?

[tofu-sensei]

Sure. I'll whip up a simple example and post them in a separate thread.

[MazeGen]

I'm looking forward to your macros and examples  :U