AMD GCN ISA assembler

GCN ISA assembler tool for my GSoC project at Openwall

Project page: http://openwall.info/wiki/john/development/GCN-ISA GitHub: https://github.com/balidani/gcnasm

Usage

./gcnasm <input> <output>

The input is a text file containing the assembly code that is to be processed. The output will be a binary file containing the microcode.

Notes

• s_endpgm needs a parameter to work (e.g. s_endpgm 0)
• some macros for s_waitcnt need to be defined (e.g. lgkmcnt(3)) #define lgkmcnt(3) 0x037f
• for some instruction types only one format is used (VOPC is always used as VOP3b)

Other projects

Ryan White created a GCN Assembler in C#:

• http://www.codeproject.com/Articles/872477/Assembler-for-AMD-s-GCN-GPU