A 64-bit hello world program> helloworld64.asm

[David Szafranski]

Hi All,

Attached is a simple console program converted to 64-bit, helloworld64.asm.

If you have Windows 64-bit OS, then give it a try.

Follow the instructions on how to build it or run the bat file (change .txt to .bat) from a command window.

ciao for now,

D.

[gentsky]

Hi D.

This worked fine for me.

I am wondering how golink finds the correct 64 bit version of kernel32.dll since both the 32 and 64 bit versions have the same name.

Do you know?

Alan

[David Szafranski]

 Hi Alan,

From the goasm website, the main differences between 32-bit and 64-bit executables:

• The PE file format for Win64 files is called "PE+".
• The size of optional header field in the COFF header is 0F0h in a PE+ file and 0E0h in a PE file.
• The "machine type" in the COFF header is not 14Ch (as it is for x86 processors), but is 8664h (for the AMD64 processor).
• The "magic number" at the beginning of the optional header is 20Bh instead of 10Bh.
• The "majorsubsystemversion" in a PE+ file is 5 instead of 4 in a PE file.

I would think that  a 64-bit DLL would have a similar header field.

David

[M M]

Hello,

Just an idea mind, but what if the XBlite compiler were to output GNU/GCC compatible assembly? By leveraging the GNU toolkit as the assembler and linker, this could allow XBlite to target other systems. There is probably a nuance to this which might not make this feasible, but its just an idea.

Michael

---

From: xbl...@googlegroups.com <xbl...@googlegroups.com> on behalf of David Szafranski <david.sz...@gmail.com>
Sent: 15 November 2024 02:36
To: xblite <xbl...@googlegroups.com>
Subject: [xblite] A 64-bit hello world program> helloworld64.asm

 

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[David Silverwood]

I like that idea, mostly because I am more of a linux user, however, with XBASIC already outputting 64bit in Linux I'm not sure how feasible that may be. I tend to use XBasic with Linux and XBlite with Windows and I believe they compliment each other quite well. Just my penny's worth.

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