Forthx64

Version 4.0 is here!
Featuring:
* auxiliary stack
* x87 FPU interface
* IEEE double-precision and quad-precision floating-point math interface
* ptrace interface
* Completely reorganized listing
* Can be assembled as position independent executable (PIE)

Renders previous versions obsolete!

Skeleton key to the world's most powerful microprocessor
Available for both yasm and GNU assembler
Uses Linux system calls for most I/O
100% 64-bit assembly code
Independent stacks, including auxiliary stack
Incorporates practical multi-precision fixed-point math , IEEE single, double, extended, and quad-precision math, and extensive numeric conversions
Full complement of operators
Adapted exclusively for Linux
Integrates with the Shell