20 #define j44(a,b)                ((((a>>4)&0x0f)|(b&0xf0))^0x88)
23  * cont = 0 - access the IDE register file
26 static int  cont_map[2] = { 0x08, 0x20 };
30 	int r = regr + cont_map[cont] + 0x80;  in aten_write_regr()
32 	w0(r); w2(0xe); w2(6); w0(val); w2(7); w2(6); w2(0xc);  in aten_write_regr()
39 	r = regr + cont_map[cont] + 0x40;  in aten_read_regr()
43 	case 0:  in aten_read_regr()
44 		w0(r); w2(0xe); w2(6);  in aten_read_regr()
45 		w2(7); w2(6); w2(0);  in aten_read_regr()
46 		a = r1(); w0(0x10); b = r1(); w2(0xc);  in aten_read_regr()
50 		r |= 0x10;  in aten_read_regr()
51 		w0(r); w2(0xe); w2(6); w0(0xff);  in aten_read_regr()
52 		w2(0x27); w2(0x26); w2(0x20);  in aten_read_regr()
54 		w2(0x26); w2(0xc);  in aten_read_regr()
66 	case 0:  in aten_read_block()
67 		w0(0x48); w2(0xe); w2(6);  in aten_read_block()
68 		for (k = 0; k < count / 2; k++) {  in aten_read_block()
70 			a = r1(); w0(0x58); b = r1();  in aten_read_block()
71 			w2(0); d = r1(); w0(0x48); c = r1();  in aten_read_block()
75 		w2(0xc);  in aten_read_block()
79 		w0(0x58); w2(0xe); w2(6);  in aten_read_block()
80 		for (k = 0; k < count / 2; k++) {  in aten_read_block()
81 			w2(0x27); w2(0x26); w2(0x22);  in aten_read_block()
82 			a = r0(); w2(0x20); b = r0();  in aten_read_block()
86 		w2(0x26); w2(0xc);  in aten_read_block()
95 	w0(0x88); w2(0xe); w2(6);  in aten_write_block()
96 	for (k = 0; k < count / 2; k++) {  in aten_write_block()
97 		w0(buf[2 * k + 1]); w2(0xe); w2(6);  in aten_write_block()
100 	w2(0xc);  in aten_write_block()
107 	w2(0xc);  in aten_connect()
121 		 "ATEN EH-100 at 0x%x, mode %d (%s), delay %d\n",  in aten_log_adapter()