18 	P0 = R0;	/* P0 = port */
23 .Llong_loop_s: R0 = [P1++];
24 .Llong_loop_e: [P0] = R0;
31 	P0 = R0;	/* P0 = port */
36 .Lword_loop_s: R0 = W[P1++];
37 .Lword_loop_e: W[P0] = R0;
44 	P0 = R0;	/* P0 = port */
49 .Lbyte_loop_s: R0 = B[P1++];
50 .Lbyte_loop_e: B[P0] = R0;
57 	P0 = R0;	/* P0 = port */
63 		R0 = B[P1++];  define
64 		R0 = R0 << 8;  define
65 		R0 = R0 + R1;  define
66 .Lword8_loop_e: W[P0] = R0;