20 		w2(4); w0(f); w2(5); w2(0xd);	\
21 		w2(5); w2(0xd); w2(5); w2(4);	\
26 		w2(4); w0(v); w2(5);		\
27 		w2(7); w2(5); w2(4);		\
30 #define j44(a, b)	(((a >> 4) & 0x0f) | (b & 0xf0))
47 		w2(4); w2(6); l = r1();  in on20_read_regr()
48 		w2(4); w2(6); h = r1();  in on20_read_regr()
49 		w2(4); w2(6); w2(4); w2(6); w2(4);  in on20_read_regr()
52 		w2(4); w2(0x26); r = r0();  in on20_read_regr()
53 		w2(4); w2(0x26); w2(4);  in on20_read_regr()
74 	w2(4); w0(0); w2(0xc); w2(4); w2(6); w2(4); w2(6); w2(4);  in on20_connect()
84 	w2(4); w0(7); w2(4); w2(0xc); w2(4);  in on20_disconnect()
91 	int k, l, h;  in on20_read_block()  local
95 	for (k = 0; k < count; k++) {  in on20_read_block()
97 			w2(4); w2(0x26); buf[k] = r0();  in on20_read_block()
99 			w2(6); l = r1(); w2(4);  in on20_read_block()
100 			w2(6); h = r1(); w2(4);  in on20_read_block()
101 			buf[k] = j44(l, h);  in on20_read_block()
104 	w2(4);  in on20_read_block()
109 	int k;  in on20_write_block()  local
113 	for (k = 0; k < count; k++) {  in on20_write_block()
114 		w2(5); w0(buf[k]); w2(7);  in on20_write_block()
116 	w2(4);  in on20_write_block()
121 	char *mode_string[2] = { "4-bit", "8-bit" };  in on20_log_adapter()