Absoft Pro Fortran v9.0
Linux Fortran Compiler (Fortran 95 v9.0 for 32-bit and 64-bit Linux) combines superior performance, solid reliability and the industry's most complete list of tools and libraries into a single package. New optimizations specifically designed for x86-compatible AMD64 processors deliver industry leading application performance and Absoft Fortran95 allows generation of both 32-bit and 64-bit executable programs in a single environment. For maximum efficiency at tracking down and eliminating bugs, every copy of Absoft Fortran 95 includes a copy of Fx2™, the industry-leading Fortran debugger, at no additional charge.

GDB6.0 - GNU Debugger (Open Source)
Version 6.1 of GDB, the GNU Debugger, is now available via anonymous FTP. GDB is a source-level debugger for C, C++, Pascal, Objective-C and many other languages. GDB can target (i.e., debug programs running on) more than a dozen different processor architectures, and GDB itself can run on most popular GNU/Liinux, Unix and Microsoft Windows variants.
Download GDB from Project GNU's FTP server in the directory: ftp://ftp.gnu.org/gnu/gdb

Windows® Debugging Tools - 32-bit Version by Microsoft®
Versions of the Debugging Tools for Windows package are available for 32-bit x86 and native x64 platforms. These
debugging tools can be used to debug drivers, applications, services, and the operating system itself on systems running Microsoft® Windows® Server™ 2003, Windows 2000, Windows XP, or Windows NT庐 4.0.
Install 32-bit Version of Windows Debugging tools

Windows Debugging Tools - Native AMD64 Beta by Microsoft®
This beta release allows you to debug both 32-bit and 64-bit user-mode applications running on x64 platforms. It will debug both the application and the WOW64 emulator. If you are kernel debugging an x64 system from an x86 system, then you should use the 32-bit beta package. Use the x64 beta package when you are debugging an application running on an x64 platform.
Install AMD64 Beta version of Windows Debugging tools

SoftICE Driver Suite - Device Driver Debugger by CompuWare Corp
SoftICE Driver Suite is a suite of the core device driver tools that accelerate the development and debugging of Windows device drivers. SoftICE now with full Windows XP support enables developers to complete remote debugging. For the AMD Opteron™ and AMD Athlon™64 family of processors, note OS system compatibility with: WindowsXP SP1 Beta 1 (1069) and Windows Server 2003 SP1 Beta 1 (1069). For x86 processors and compatibles, DriverStudio 3.1 and SoftICE Driver Suite 3.1 support the following OS platforms: Windows XP Release, SP1; Windows 2000 Release, SP1, SP2, SP3, SP4; and Windows Server 2003 Release.
http://www.compuware.com/products/driverstudio/softice.htm