Advanced Configuration and Power Interface Specification

ACPI Source Language (ASL)Reference
Reserved
0x0A-0x7F
In addition, OEMs may define Operation Regions types 0x80 to 0xFF.
Example
The following example ASL code shows the use of OperationRegion combined with Field to
describe IDE 0 and 1 controlled through general I/O space, using one FET.
OperationRegion (GIO, SystemIO, 0x125, 0x1)
Field (GIO, ByteAcc, NoLock, Preserve) {
IDEI, 1, // IDEISO_EN - isolation buffer
IDEP, 1, // IDE_PWR_EN - power
IDER, 1 // IDERST#_EN - reset#
}
19.6.98 Or (Integer Bitwise Or)
Syntax
Or (Source1, Source2, Result) => Integer
Result = Source1 | Source2 => Integer
Result |= Source1 => Integer
Arguments
Source1 and Source2 are evaluated as Integers.
Description
A bitwise OR is performed and the result is optionally stored in Result.
19.6.99 Package (Declare Package Object)
Syntax
Package (NumElements) {PackageList} => Package
Arguments
NumElements is evaluated as an Integer. PackageList is an initializer list of objects.
Description
Declares an unnamed aggregation of data items, constants, and/or references to control methods.
The size of the package is NumElements. PackageList contains the list data items, constants, and/or
control method references used to initialize the package.
If NumElements is absent, it is set to match the number of elements in the PackageList. If
NumElements is present and greater than the number of elements in the PackageList, the default
entry of type Uninitialized (see ObjectType) is used to initialize the package elements beyond those
initialized from the PackageList. There are two types of package elements allowed in the
Version 6.0 871