391   mov dx, #0x3C4  variable
392   out dx, al  variable
393   inc dx
394   in  al, dx
398   dec dx
399   out dx, ax  variable
401   out dx, ax  variable
403   mov dx, #0x3CE  variable
404   out dx, ax  variable
406   out dx, ax  variable
428   push dx
430   mov dx, #0x3C4  variable
431   out dx, ax  variable
432   inc dx
433   in al, dx
435   pop dx
602   push dx
607   mov dx, #0x3c4  variable
609   out dx, ax ;; Unlock cirrus special  variable
613   mov dx, #0x3ce  variable
620   mov dx, #0x3c6  variable
622   out dx, al  variable
623   in al, dx
624   in al, dx
625   in al, dx
626   in al, dx
628   out dx, al  variable
630   out dx, al  variable
647   pop dx
654   push dx
655   mov dx, #0x3ce
657   out dx, al  variable
658   inc dx
659   in al, dx
661   out dx, al  variable
662   pop dx
671   out dx, ax  variable
678   push dx
681   out dx, al  variable
682   inc dx
683   in al, dx
698   pop dx
707   push dx
711   out dx, al  variable
712   inc dx
713   in al, dx
716   pop dx
721   push dx
722   mov dx, #0x3C4
724   out dx, al  variable
725   inc dx
726   in al, dx  variable
743   pop dx
864   push dx
917   mul bx ;; dx:ax=vramdisp
920   inc dx
924   mov cx, dx
925   xor dx, dx
973   pop dx
1084   push dx
1087   mov ah, dl ;; dx=window address in granularity
1088   mov dx, #0x3ce
1089   out dx, ax
1090   pop dx
1096   mov dx, #0x3ce
1097   out dx, al
1098   inc dx
1099   in al, dx
1100   xor dx, dx
1101   mov dl, al ;; dx=window address in granularity
1126   xor  dx, dx
1133   xor  dx, dx
1137   mov  dx, ax
1150   push dx
1163   inc  dx
1165   push dx
1166   and  dx, #0x0003
1169   pop  dx
1170   shr  dx, #2
1176   shl  dx, #2
1177   push dx
1181   or   dx, bx
1188   push dx
1193   xor  dx, dx
1196   pop  dx
1209   push dx
1211   mov dx, #0x40
1212   mov ds, dx
1215   pop dx
1221   push dx
1223   mov dx, #0x40
1224   mov ds, dx
1227   pop dx
1264   mov  dx, #0x3cc
1265   in   al, dx
1268   mov  dx, #0x3b4
1299   push dx
1300   mov  dx, #0x03c4
1302   out  dx, al
1303   inc  dx
1304   in   al, dx
1315   pop  dx
1324   out  dx, al
1325   inc  dx
1327   out  dx, al
1328   dec  dx
1330   out  dx, al
1331   inc  dx
1333   in   al, dx
1336   out  dx, al
1341   push dx
1345   out  dx, al
1346   inc  dx
1347   in   al, dx
1349   dec  dx
1351   out  dx, al
1352   inc  dx
1353   in   al, dx
1360   pop  dx
1399   push dx
1403   out  dx, al
1404   inc  dx
1406   out  dx, al
1407   dec  dx
1409   out  dx, al
1410   inc  dx
1412   out  dx, al
1413   dec  dx
1415   out  dx, al
1416   inc  dx
1417   in   al, dx
1424   out  dx, al
1425   dec  dx
1432   out  dx, al
1433   inc  dx
1434   in   al, dx
1437   out  dx, al
1446   out  dx, al
1447   inc  dx
1448   in   al, dx
1450   dec  dx
1452   out  dx, al
1453   inc  dx
1454   in   al, dx
1456   dec  dx
1458   out  dx, al
1459   inc  dx
1460   in   al, dx
1461   dec  dx
1468   out  dx, al
1469   inc  dx
1470   in   al, dx
1492   mov dx, #0x3ce
1493   out dx, ax
1509   mov dx, #0x3ce
1510   out dx, ax