SETARG_A          136 lib/lua/lcode.c     SETARG_A(*i, reg);
SETARG_A          286 lib/lua/lcode.c     SETARG_A(getcode(fs, e), fs->freereg);
SETARG_A          364 lib/lua/lcode.c       SETARG_A(*pc, reg);
SETARG_A          520 lib/lua/lcode.c   SETARG_A(*pc, !(GETARG_A(*pc)));