File ffcall/callback/vacall_r/README artifact 06bfe2c578 part of check-in 419186e44b
This directory contains a reentrant version of the vacall package. Instead of using a global variable for the function to be called, a pointer is passed in a special CPU register, pointing to: - a function code pointer in the first word, - a data word in the second word, to be passed before the va_alist. The include file <vacall.h> is renamed to <vacall_r.h>.