forth-package key-value name sfp key-value version 1.0.0 key-value description Software floating point package key-value license MIT key-value main sfp_sf.f key-list tags LMI-Forth key-list tags SwiftForth key-list tags VFX-Forth key-list tags ansforth94 key-list tags forth-83 key-list tags forth-94 key-list tags floating-point-arithmetic key-list tags tools end-forth-package