acpi-rs/tests/buffer_fields.asl

DefinitionBlock("buffer_fields.aml", "DSDT", 1, "RSACPI", "BUFFLD", 1) {
	Name(X, Buffer (16) { 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff })
	CreateBitField(X, 3, BIT3)
	CreateField(X, 0, 3, BITS)
	CreateByteField(X, 1, BYTE)
	CreateWordField(X, 2, WORD)
	CreateDWordField(X, 4, DWRD)
	CreateQWordField(X, 8, QWRD)

	// `X` should end up as [0xff, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x00, 0x00]
	BIT3 = 1
	BITS = 7
	BYTE = 0x01
	WORD = 0x0302
	DWRD = 0x07060504
	// Last two bytes should be cleared because of zero-extension of this store
	// We do this as a buffer store a) to test them b) because `iasl` doesn't support 64-bit integer constants...
	QWRD = Buffer() { 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d }

	// `Y` should end up as `Integer(0x07060504)` (`Integer(117835012)` in decimal)
	Name(Y, 4)
	Y = DWRD
}