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AMD Releases R700 Family Instruction Set
Last week AMD posted a 392-page pdf file, outlining the Instruction Set Architecture (ISA) of the company's R700 family of graphics cards. The 1.9 MB file contains documentation for the RV710 (Radeon HD 4350/ Radeon HD 4550), the RV730 (Radeon HD 4670/ Radeon HD 4650), the RV740 (Radeon HD 4770/ Radeon HD 4750), the RV770 (Radeon HD 4870/ Radeon HD 4850/ Radeon HD 4830), and the RV790 (Radeon HD 4890) GPUs. Except being very interesting for many tech specialists, this document provides the programming guidelines for compiler writers and programmers. It also describes in great detail the whole architecture around the R700 series GPUs. There are a total of 10 chapters inside the document that cover topics such as control flow programs, fertex-fetch clauses, memory read clauses, data share clauses, microcode formats and so on. If you think you have the skills to read and most importantly understand what is written, please click here for the full document in .pdf format (requires Adobe Acrobat Reader).

Source: AMD/ATI www.techpowerup.com