36 		4  16-bit EPP
40 #define j44(a,b)                (((a>>4)&0x0f)+(b&0xf0))
41 #define j53(a,b)                (((a>>3)&0x1f)+((b<<4)&0xe0))
59                 a = r1(); w2(1); b = r1(); w2(4);  in epia_read_regr()
65                 a = r1(); b = r2(); w2(4);  in epia_read_regr()
70                 a = r0(); w2(4);  in epia_read_regr()
74 	case 4:  in epia_read_regr()
75         case 5: w3(regr); w2(0x24); a = r4(); w2(4);  in epia_read_regr()
93                 w0(r); w2(1); w0(val); w2(3); w2(4);  in epia_write_regr()
97 	case 4:  in epia_write_regr()
99                 w3(r); w4(val); w2(4);  in epia_write_regr()
118         w2(4); w0(0xa0); w0(0x50); w0(0xc0); w0(0x30); w0(0xa0); w0(0);  in epia_connect()
119         w2(1); w2(4);  in epia_connect()
121                 w0(0xa); w2(1); w2(4); w0(0x82); w2(4); w2(0xc); w2(4);  in epia_connect()
122                 w2(0x24); w2(0x26); w2(4);  in epia_connect()
131         w2(1); w2(4);  in epia_disconnect()
138 {       int     k, ph, a, b;  in epia_read_block()  local
144                 for (k=0;k<count;k++) {  in epia_read_block()
146                         w2(4+ph); b = r1();  in epia_read_block()
147                         buf[k] = j44(a,b);  in epia_read_block()
150                 w0(0); w2(4);  in epia_read_block()
156                 for (k=0;k<count;k++) {  in epia_read_block()
157                         w2(4+ph);  in epia_read_block()
159                         buf[k] = j53(a,b);  in epia_read_block()
162                 w0(0); w2(4);  in epia_read_block()
167                 for (k=0;k<count;k++) {  in epia_read_block()
169                         buf[k] = r0();  in epia_read_block()
172                 w2(6); w2(4);  in epia_read_block()
177                 for (k=0;k<count;k++) buf[k] = r4();  in epia_read_block()
178                 w2(4); WR(0x84,0);  in epia_read_block()
181         case 4: if (count > 512) WR(0x84,3);  in epia_read_block()
183 		for (k=0;k<count/2;k++) ((u16 *)buf)[k] = r4w();  in epia_read_block()
184                 w2(4); WR(0x84,0);  in epia_read_block()
189                 for (k=0;k<count/4;k++) ((u32 *)buf)[k] = r4l();  in epia_read_block()
190                 w2(4); WR(0x84,0);  in epia_read_block()
198 {       int     ph, k, last, d;  in epia_write_block()  local
206                 for (k=0;k<count;k++) {  in epia_write_block()
207                         d = buf[k];  in epia_write_block()
209                         w2(4+ph);  in epia_write_block()
212                 w2(7); w2(4);  in epia_write_block()
217                 for (k=0;k<count;k++) w4(buf[k]);  in epia_write_block()
221         case 4: if (count < 512) WR(0x84,1);  in epia_write_block()
223                 for (k=0;k<count/2;k++) w4w(((u16 *)buf)[k]);  in epia_write_block()
229                 for (k=0;k<count/4;k++) w4l(((u32 *)buf)[k]);  in epia_write_block()
239 {       int     j, k, f;  in epia_test_proto()  local
245             for (k=0;k<256;k++) {  in epia_test_proto()
246                 WR(2,k^0xaa);  in epia_test_proto()
247                 WR(3,k^0x55);  in epia_test_proto()
248                 if (RR(2) != (k^0xaa)) e[j]++;  in epia_test_proto()
258         for (k=0;k<256;k++) {  in epia_test_proto()
259             if ((scratch[2*k] & 0xff) != ((k+1) & 0xff)) f++;  in epia_test_proto()
260             if ((scratch[2*k+1] & 0xff) != ((-2-k) & 0xff)) f++;  in epia_test_proto()
277 {       char    *mode_string[6] = {"4-bit","5/3","8-bit",  in epia_log_adapter()