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 }