AMD64 Linux - 64 bit
The 64 bit AMD64 port supports Fedora Core 5 and compatible operating systems.
The port supports 80 bit extended precision floating point numbers via the Common Lisp long-float type. Double and single precision floating point numbers exploit the SSE extension which provides 16 floating pointer registers.
The AMD64 port uses a conservative garbage collector. Objects that might otherwise be garbage may be kept alive due to the conservative nature of the garbage collector.
Over 64G bytes of memory may be allocated to the lisp heap.
Tracing and breakpoints are not thread safe but should be fine so long as only a single thread touches the code with a breakpoint.