Primitive bignum encoding added in the compiler. Doesn't work for all
treee0d83c4c35cc56add591cf632f6753ce8094c33c
-rw-r--r-- 10769 library.scm
-rw-r--r-- 16549 math.scm
-rw-r--r-- 87216 picobit-vm.c
-rw-r--r-- 114057 picobit.scm
-rw-r--r-- 31589 robot.scm