Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Name (BUF1, Buffer (10))
Add (0x1234, 0x789A, BUF1)
Since BUF1 is a named object of fixed type Buffer, the Integer result of the Add operation must be
converted to a Buffer before it is stored into BUF1.
19.3.5.6 Data Types and Type Conversions
The following table lists the available ASL data types and the available data type conversions (if
any) for each. The entry for each data type is fully cross-referenced, showing both the types to which
the object may be converted as well as all other types that may be converted to the data type.
The allowable conversions apply to both explicit and implicit conversions.
Table 19-356 Data Types and Type Conversions
ASL Data Type
[Uninitialized]
Can be implicitly or explicitly converted to
these Data Types: (In priority order)
None. Causes a fatal error when used as
a source operand in any ASL statement.
Buffer Integer, String, Debug Object Integer, String
Can be implicitly or explicitly
converted from these Data Types:
Integer, String, Buffer, Package, DDB
Handle, Object Reference
Buffer Field Integer, Buffer, String, Debug Object Integer, Buffer, String
DDB Handle Integer, Debug Object Integer
Debug Object
None. Causes a fatal error when used as
a source operand in any ASL statement.
Device None None
Event None None
Integer, String, Buffer, Package, Field
Unit, Buffer Field, DDB Handle
Field Unit (within an
Operation Region)
Integer, Buffer, String, Debug Object
Integer, Buffer, String
Integer
Buffer, Buffer Field, DDB Handle, Field Buffer, String
Unit, String, Debug Object
Integer Constant Integer, Debug Object None. Also, storing any object to a
constant is a no-op, not an error.
Method None None
Mutex None None
Object Reference None None
Operation Region None None
Package Debug Object None
String Integer, Buffer, Debug Object Integer, Buffer
Power Resource None None
Processor None None
RawDataBuffer None None
Thermal Zone None None
794 April, 2015 Version 6.0