> ... /* Place character represented by the value at TOS into * the buffer. Decrement the pointer, and increment the count. */ - *(--(char*)hash_pt

> ... /* Place character represented by the value at TOS into * the buffer. Decrement the pointer, and increment the count. */ - *(--(char*)hash_ptr.parm.v.p) = fpop(sst); - + *((char*)hash_ptr.parm.v.p) = fpop(sst); + hash_ptr.parm.v.p = (char*)hash_ptr.parm.v.p - 1; Are you sure that making assignment before the predecrement is how this fragment should be functioning?