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include vmm.inc mov ebx, SysVM ; system VM handle mov esi, OFFSET32 CommandTail ; points to WIN386 command tail mov eax, Device_Init |
The Device_Init message directs the virtual device to initialize itself. The virtual device typically allocates memory for a device-specific section in the control block, allocates other memory areas, hooks interrupts and I/O ports, and specifies instance data.
SysVM
Specifies a handle identifying the system virtual machine.
CommandTail
Points to the command tail retrieved from the program segment prefix (PSP) of WIN386.EXE. The first byte in the command tail specifies the length in bytes of the tail.
The carry flag is clear if the virtual device is initialized successfully. Otherwise, the carry flag is set to indicate an error and prevent the system from loading the virtual device.
The virtual device should allocate a device-specific section in the control block of the system virtual machine and then initialize the section.
The virtual device can call the Simulate_Int and Exec_Int services in the system virtual machine.
Flags