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Table 2650

Call VMOUSE entry point with:
	EAX = function number
	    0000h get VMOUSE version
		Return: CF clear
			AH = major version
			AL = minor version
		EBX = ???
		ECX = ???
		Return: CF clear if successful
			CF set on error (e.g. fn 0003h not yet called)
	    0002h ??? (calls "test system VM handle")
		Return: CF clear if successful (in system VM)
			CF set on error
	    0003h ???
		ECX = ???
		DX = ???
		Return: CF clear
	    0004h ???
		Note: invokes Call_Priority_VM_Event
	    0005h get mouse port data
		Return: CF clear
			AL = ??? (04h)
			AH = mouse IRQ interrupt number (IRQ4=0Ch,etc.)
			CX = mouse I/O port address (e.g. 03F8h)
			DX = COM port number??? (0001h for mouse on COM1)
	    0100h NOP???
		Return: CF clear
	    0101h init???
		Return: CF clear
		Note:	appears to be the same as fn 0005h, but returns no data
	    0102h unimplemented
		Return: CF set
	    0103h check ???
		Return: AX = status (0000h/0001h)
		Note:	checks flag set by fn 0003h
		Return: CF set
SeeAlso: #02649,#02651

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