ref: f28701a4f6b817d1e5b325eb81ed4892ebecacbf
dir: /fns.h/
void* emalloc(ulong); void sim(void); void sysinit(void (*)(void), void (*)(void), void (*)(void), void (*)(void)); Image* eallocimage(Rectangle, ulong, int, ulong); Point PFt(Foint); Rectangle RFect(Fectangle); Foint Ft(double, double); void updatedraw(void); void redraw(void); void resetdraw(void);