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msg_pmdisabled
2009 May 04
3
[RFC][PATCH] poweroff COMBOOT module
...cmp bx,504Dh ; signature 'PM'
+ je check_ver
+
+ mov bx, msg_notpresent
+ jmp error
+
+check_ver:
+ cmp ax,0101h ; Need version 1.1+
+ jae check_state
+
+ mov bx, msg_notsup
+ jmp error
+
+check_state:
+ test cx,8 ; bit 3 APM BIOS Power Management disabled
+ jz connect
+
+ mov bx, msg_pmdisabled
+ jmp error
+
+connect:
+ mov ax,5301h ; APM Real Mode Interface Connect (01h)
+ xor bx,bx ; APM BIOS (0000h)
+ int 15h
+ jnc connect_ok
+
+ mov bx, msg_connect
+ jmp error
+
+connect_ok:
+ mov ax,530Eh ; APM Driver Version (0Eh)
+ xor bx,bx ; APM BIOS (0000h)
+ mov cx,0101h ; APM Drive...