Changeset 94786 in vbox for trunk/src/VBox

Timestamp:

May 2, 2022 3:30:07 PM (3 years ago)

Author:

vboxsync

Message:

BIOS: Added trivial APM status (INT 15h/530Ah) support.

File:

• trunk/src/VBox/Devices/PC/BIOS/apm.c (modified) (1 diff)

trunk/src/VBox/Devices/PC/BIOS/apm.c

@@ -206 +206 @@
     case APM_BUSY:      /* Nothing to do as APM Idle doesn't slow CPU clock. */
         break;
+    case APM_STATUS:
+        /* We do not attempt to report battery status. */
+        BX = 0x01FF;    /* AC line power, battery unknown. */
+        CX = 0x80FF;    /* No battery. */
+        DX = 0xFFFF;    /* No idea about remaining battery life. */
+        break;
     case APM_GET_EVT:
         /// @todo error should be different if interface not connected + engaged