Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Example
The following block of ASL sample code shows a nested use of Device objects to describe an IDE
controller connected to the root PCI bus.
Device (IDE0) {
Name (_ADR, 0)
// primary controller
// put PCI Address (device/function) here
// define region for IDE mode register
OperationRegion (PCIC, PCI_Config, 0x50, 0x10)
Field (PCIC, AnyAcc, NoLock, Preserve) {
…
}
Device (PRIM) {
// Primary adapter
Name (_ADR, 0) // Primary adapter = 0
…
Method (_STM, 2) {
…
}
Method (_GTM) {
…
}
Device (MSTR) {
// master channel
Name (_ADR, 0)
Name (_PR0, Package () {0, PIDE})
}
}
Name (_GTF) {
…
}
}
Device (SLAV) {
Name (_ADR, 1)
Name (_PR0, Package () {0, PIDE})
Name (_GTF) {
…
}
}
19.6.31 Divide (Integer Divide)
Syntax
Divide (Dividend, Divisor, Remainder, Result) => Integer
Result = Dividend / Divisor => Integer
Result /= Divisor => Integer
Arguments
Dividend and Divisor are evaluated as Integers.
Description
Dividend is divided by Divisor, then the resulting remainder is optionally stored into Remainder and
the resulting quotient is optionally stored into Result. Divide-by-zero exceptions are fatal.
822 April, 2015 Version 6.0