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Using the New PPC4xx Indexed DCR Access Instructions
Related links: PowerPC 440 Embedded Core, PowerPC 460S Embedded Core, PowerPC 464 H90 Embedded Core, PowerPC 464FP H90 Embedded Core

Application Note
The IBM PPC440H6, PPC464, PPC464FP, and PPC460-S embedded CPU cores implement several new instructions for accessing Device Control Registers (DCRs). This application note describes how to code and use these instruction in assembly language using C-style preprocessor macros. It also describes how to use these DCR instructions in C callable assembly language routines allowing DCRs access in C code.

Revision Date: 06/15/08

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DCR_appnote.pdfPDF85 KB
 

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