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| Freescale Semiconductor, Inc. Engineering Bulletin EB622/D Rev. 1, 5/2003 Review Draft Motorola Book E Implementation Standards: APU ID Reference This document contains the following: Freescale Semiconductor, Inc... Topic Section 1.1, "Introduction" Section 1.2, "Motivation" Section 1.3, "Implementation" Section 1.4, "References" Page 2 2 2 3 For More Information On This Product, Go to: www.freescale.com Introduction Freescale Semiconductor, Inc. 1.1 Introduction The e500 Application Binary Interface (ABI), and possibly other ABIs, provide a mechanism for specifying the types and revisions of APUs that are required for proper behavior of a program. This information is contained in an optional .PPC.EMB.apuinfo section in the ELF-format object file. This document provides the official mapping between Motorola Book E Implementation Standard APUs and the numeric APU IDs that are used in the APUinfo section. See "APU Information Section" in Chapter 3, "Object Files," of the PowerPC e500 Application Binary Interface, for more details on the format and usage of this section. 1.2 Motivation Freescale Semiconductor, Inc... The APU information is intended primarily to allow link-time checks of compatibility between object files to avoid obvious errors. For example, because both AltiVec and the signal processing engine (SPE) APU use the same instruction encodings for different instructions, linking an object file that requires AltiVec instructions with an object file that requires SPE instructions should provide an error message. The APU information can also be used by disassemblers to unambiguously disassemble such shared opcodes. In addition, operating systems can use the APUinfo section in an application to provide transparent emulation of APUs that are not present in the hardware. Without APU information, an operating system would not know whether it should emulate AltiVec or SPE semantics for certain instruction encodings. 1.3 Implementation The APUinfo section contains an entry for each APU that the object file requires. Each entry contains a 32-bit word: an upper 16-bit half word specifying the APU type, and a lower 16-bit half word specifying the revision of that APU. This document presents the current assignments for the APU types. See the reference manual for the implementation to determine the revision of an APU for the lower half word of the entry. Table 1-1 provides the current APU ID assignments. Note that this application note is the definitive source for APU ID assignments and will be revised as new APUs are added. Table 1-1. APU IDs APU ID (16 Bits) 0x0000-0x003E 0x003f 0x0040 0x0041 0x0042 0x0043 0x0044-0x00FF 0x0100 0x0101 0x0102 0x0102-0xFFFF 1 APU Reserved for legacy use Motorola AltiVec APU 1 Book E integer select (isel) APU Motorola Book E performance monitor APU Motorola Book E machine check APU Motorola Book E cache locking APU Reserved Motorola Book E SPE APU Motorola Book E SPFP APU e500 branch-locking APU (also called the BTB locking APU) Reserved Although AltiVec predates the Book E concept of APUs, AltiVec can be considered an APU. 2 Motorola Book E Implementation Standards: APU ID Reference For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. References 1.4 References PowerPC e500 Application Binary Interface, Motorola Order Number E500ABIUG/D AltiVec Technology Programming Environments Manual, Motorola Order Number ALTIVECPEM/D PowerPC e500 Core Complex Reference Manual, Motorola Order Number E500CORERM/D EREF: A Reference for Motorola Book E and the e500 Core, Motorola Order Number EREF/D Freescale Semiconductor, Inc... MOTOROLA Motorola Book E Implementation Standards: APU ID Reference For More Information On This Product, Go to: www.freescale.com 3 Freescale Semiconductor, Inc. HOW TO REACH US: USA/EUROPE/LOCATIONS NOT LISTED: Motorola Literature Distribution P.O. Box 5405, Denver, Colorado 80217 1-303-675-2140 (800) 441-2447 JAPAN: Motorola Japan Ltd. SPS, Technical Information Center 3-20-1, Minami-Azabu Minato-ku Tokyo 106-8573 Japan 81-3-3440-3569 ASIA/PACIFIC: Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without Freescale Semiconductor, Inc... Motorola Semiconductors H.K. Ltd. Silicon Harbour Centre, 2 Dai King Street Tai Po Industrial Estate, Tai Po, N.T., Hong Kong 852-26668334 TECHNICAL INFORMATION CENTER: (800) 521-6274 HOME PAGE: www.motorola.com/semiconductors limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and the Stylized M Logo are registered in the U.S. Patent and Trademark Office. digital dna is a trademark of Motorola, Inc. All other product or service names are the property of their respective owners. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. (c) Motorola, Inc. 2003 EB622/D For More Information On This Product, Go to: www.freescale.com |
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