Emulate_Non_Byte_IO

The Emulate_Non_Byte_IO macro checks the size of the I/O request and jumps to the Simulate_IO service if the request is larger than a byte. I/O callback procedures use this macro to simplify processing of I/O requests.

Parameters

This macro has no parameters.

Return Value

This macro has no return value.

Comments

The EAX, EBX, ECX, EDX, and EBP registers must contain values specified as valid input parameters for the Simulate_IO service. Emulate_Non_Byte_IO checks the ECX register for the I/O type. If this type specifies an I/O request that is larger than a byte, the macro jumps to the Simulate_IO service.

See Also

Dispatch_Byte_IO, Simulate_IO