POS_Bx             96 lib/lua/lopcodes.h #define GETARG_Bx(i)	(cast(int, ((i)>>POS_Bx) & MASK1(SIZE_Bx,0)))
POS_Bx             97 lib/lua/lopcodes.h #define SETARG_Bx(i,b)	((i) = (((i)&MASK0(SIZE_Bx,POS_Bx)) | \
POS_Bx             98 lib/lua/lopcodes.h 		((cast(Instruction, b)<<POS_Bx)&MASK1(SIZE_Bx,POS_Bx))))
POS_Bx            111 lib/lua/lopcodes.h 			| (cast(Instruction, bc)<<POS_Bx))