Quexal offers great support to Delphi developers: the MMX and SSE bytecode compilers translate the source code directly in machine code that is supported by Delphi's inline assembler. With Quexal you can develop complex images processing or audio/video applications in the comfortable Delphi RAD environment, with the performance boost given by MMX and SSE instructions. Now you can choose Delphi instead of traditionally performance-focused languages such as C! Quexal itself is written in Delphi! The following tools and libraries were used to develop Quexal: Borland Delphi 5, by Inprise Corp GP-Install, by Quality Software Components Ltd. GP-Version Lite, by Quality Software Components Ltd. Raize List Pack, by Raize Software GP-Profile, by Primoz Gabrijelcic MemProof, by Atanas Stoyanov GExperts, by Erik Berry and others DragDrop Component Suite, by Angus Johnson & Anders Melander MMXasm, by Hiroyuki Hori Quick Editor, by Steve Hutchesson NASM, the Netwide Assembler Exentia is an open-source library for Delphi, licensed under the Mozilla Public License.  It is designed to perform computations on vectors of 32-bit floating point data elements using the Intel SSE, AMD 3D Now! and Intel x87 instruction sets. The library handles the differences among these instruction sets, so that a single code base supports them all. An extensive usage of unrolled loops and aggressive prefetching ensures blazing performance. Ondea The Delphi compiler puts FWait instructions after every statement that uses floating-point data. This helps trapping errors during debugging, but (almost) needlessly slows down execution of final releases.  Ondea is tool that parses EXE files for FWait opcodes ($9B) and replaces them with Nop opcodes ($90). No debugging info is needed. Click here for the User Guide. If you're a performance-minded Delphi programmer, you cannot afford to miss Robert Lee's Optimal Code: "devoted to making Delphi the high performance computing tool of choice". This is a great source of information about turning Delphi applications into screaming ones: "Contrary to popular belief, the performance of Object Pascal code can be comparable to that of C or C++. It even compares favorably with assembler on the latest generation of processors. However, you do have to help out a bit. Delphi's compiler does do some optimizations, but it needs some help to produce the best performing code. These pages are devoted to that task."     Click here for a list of books about Delphi!