Extend universal backend with more primitives (mainly floating point)
Improve naive division algorithm (patch contributed by Brad Lucier)
Configure script changes for multiple VMs
Refactoring to add virtual machine state structure
Replace gratuitously global ___temp variable by local variables
Major refactoring to cleanup memory allocation code
Allocate command line arguments as permanent objects
Move symbol table handling from setup.c to mem.c
Change initial size of symbol table so that it matches the size it would otherwise have grown to
Split ___alloc_scmobj into specialized versions for ___PERM and ___STILL
Universal backend: make class method definitions prettier
Again improve naive division algorithm (patch contributed by Brad Lucier)
Universal backend: remove obsolete implementation of some primitives
Universal backend: implement boxes
Universal backend: add mutability testing primitives
Universal backend: add procedure? primitive
Universal backend: implement symbol->string and change symbol representation
Add ##require-module and cleanup VM memory management
Configure script changes for multiple VMs
Refactoring to add virtual machine state structure