Lines Matching refs:a20
2180 // Use PS2 System Control port A to set A20 enable
2185 // change A20 status
3833 case 0x24: /* A20 Control */
3856 BX_INFO("int15: Func 24h, subfunc %02xh, A20 gate control not supported\n", (unsigned) regs.u.r8.al);
3931 prev_a20_enable = set_enable_a20(1); // enable A20 line
10004 ;; save a20 and enable it
10094 ;; restore a20
