Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Description
Performs a run-time load of a Definition Block from the XSDT. Any table referenced by LoadTable
must be in memory marked by AddressRangeReserved or AddressRangeNVS.
Note: OSPM loads the DSDT and all SSDTs during initialization. As such, Definition Blocks to be
conditionally loaded via LoadTable must contain signatures other than “SSDT”.
Loading a Definition Block is a synchronous operation. Upon completion of the operation, the
Definition Block has been loaded. The control methods defined in the Definition Block are not
executed during load time.
Example
Store (LoadTable (“OEM1”, ”MYOEM”, ”TABLE1”, ”\\_SB.PCI0”,”MYD”,
Package () {0,”\\_SB.PCI0”}), Local0)
This operation would search through the RSDT or XSDT for a table with the signature “OEM1,” the
OEM ID of “MYOEM,” and the table ID of “TABLE1.” If not found, it would store Zero in Local0.
Otherwise, it will store a package containing 0 and “\\_SB.PCI0” into the variable at
\_SB.PCI0.MYD.
19.6.76 Localx (Method Local Data Objects)
Syntax
Local0 | Local1 | Local2 | Local3 | Local4 | Local5 | Local6 | Local7
Description
Up to 8 local objects can be referenced in a control method. On entry to a control method, these
objects are uninitialized and cannot be used until some value or reference is stored into the object.
Once initialized, these objects are preserved in the scope of execution for that control method.
19.6.77 LOr (Logical Or)
Syntax
LOr (Source1, Source2) => Boolean
Source1 || Source2 => Boolean
Arguments
Source1 and Source2 are evaluated as integers.
Description
If either value is non-zero, True is returned; otherwise, False is returned.
19.6.78 Match (Find Object Match)
Syntax
Match (SearchPackage, Op1, MatchObject1, Op2, MatchObject2, StartIndex) => Ones | Integer
858 April, 2015 Version 6.0