Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Description
Fprintf is a macro that converts the evaluated FormatString into a series of string Concatenate
operations, storing the result in Destination
Example
The following ASL example uses Fprintf to write a formatted string of Arg0 and Arg1 to the Named
Object STR1.
Fprintf (STR1, "%o: %o Successful", Arg1, Arg0)
This Fprintf macro expression evaluates to the following ASL operation.
Store (Concatenate (Concatenate (Concatenate (Concatenate
("", Arg1), ": "), Arg0), " Successful"), STR1)
19.6.52 FromBCD (Convert BCD To Integer)
Syntax
FromBCD (BCDValue, Result) => Integer
Arguments
BCDValue is evaluated as an Integer.
Description
The FromBCD operation is used to convert BCDValue to a numeric format and store the numeric
value into Result.
19.6.53 Function (Declare Control Method)
Syntax
Function (FunctionName, ReturnType, ParameterTypes) {TermList}
Arguments
ReturnType is optional and specifies the type(s) of the object(s) returned by the method. If the
method does not return an object, then nothing is specified or UnknownObj is specified. To specify
a single return type, simply use the ObjectTypeKeyword (e.g. IntObj, PkgObj, etc.). To specify
multiple possible return types, enclose the comma-separated ObjectTypeKeywords with braces. For
example: {IntObj, BuffObj}.
ParameterTypes specifies both the number and type of the method parameters. It is a commaseparated,
variable-length list of the expected object type or types for each of the method parameters,
enclosed in braces. For each parameter, the parameter type consists of either an ObjectTypeKeyword
or a comma-separated sub-list of ObjectTypeKeywords enclosed in braces. There can be no more
than seven parameters in total.
842 April, 2015 Version 6.0