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TomsFastMath is a fast public domain, open source, large integer arithmetic library written in portable ISO C. It is a port of LibTomMath with optional support for inline assembler multipliers. It has the following features:

  • Builds with GCC [preferably v3.3.x or higher] on any 32-bit/64-bit box
  • Includes ASM optimizations (inline) for
    • x86-32 (e.g. i386 and SSE2)
    • x86-64 (e.g. AMD64)
    • ARM (ARMv4 and higher)
    • PPC32 (e.g. G3/G4)
    • PPC64 (e.g. G5)
    • AVR32 (Atmel 32-bit RISC processor)
    • MIPS (32-bit)
  • Includes fairly complete API (provides most of what LibTomMath provides)
  • Uses similar API as LibTomMath makes porting easy
  • Competitive speeds (and getting higher).
    • Faster than OpenSSL on the AMD64
    • Still room for improvements
  • No heap usage (malloc/calloc/free)
  • Uses only inline asm, simplifies build process, simple to add new ports

The library is available as 32-bit and 64-bit:

  • If you are compiling a 32-bit program, no special compiler options are needed.
  • If you are compiling a 64-bit program, you have to compile and link your application with "cc -q64" or "gcc -maix64".


Version: 0.12-1



Source RPM:

Package dependencies:

All versions:

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Page last modified on February 23, 2011, at 03:39 PM