blocks|key|2688403|text|我做了更多的搜索，并在IBM的网站上找到了文档。This+page链接到三本文档书籍，其中the+first+one包含有关PowerPC说明的所有相关信息。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2688404|起初，我看到许多指令都具有相同的OPCODE字段值，这让我感到困惑，我想，“那么我们如何区分这些指令呢？”然而，在1.7节“指令格式”中，在整个体系结构中使用的许多指令形式实际上具有两部分操作码；第一部分是在指令的高端的六位opcode字段，第二部分是称为XO的字段，其包含操作码的额外标识。其大小和位置随指令格式的不同而不同。|2688405|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ibm.com/developerworks/systems/library/es-archguide-v2.html|1|http://download.boulder.ibm.com/ibmdl/pub/software/dw/library/es-ppcbook1.zip^0|O|9|0|19|D|1|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]|$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

I did some more hunting and found documentation on IBM's website. <a href="http://www.ibm.com/developerworks/systems/library/es-archguide-v2.html" rel="nofollow">This page</a> links to three books of documentation, of which <a href="http://download.boulder.ibm.com/ibmdl/pub/software/dw/library/es-ppcbook1.zip" rel="nofollow">the first one</a> contains all relevant information about PowerPC instructions.

I was initially confused by seeing that many instructions all had the same OPCODE field value, and thought, "How will we distinguish the instructions then?". However, in section 1.7, "Instruction formats", many of the instruction forms that are used throughout the architecture actually have a two-part opcode; the first part being the six-bit OPCODE field at the high end of the instruction, and the second part being a field called XO, which contains extra identification for the opcode. Its size and location varies depending on the instruction format.

blocks|key|2688353|text|这里有一个：http://pds.twi.tudelft.nl/vakken/in101/labcourse/instruction-set/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2688354|编辑：+This‘s+better：The+Programming+Environments+for+32-Bit+Microprocessors|style|BOLD|2688355|entityMap|0|LINK|mutability|MUTABLE|url|http://pds.twi.tudelft.nl/vakken/in101/labcourse/instruction-set/|1|https://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/852569B20050FF778525699600719DF2/%2524file/6xx_pem.pdf^0|6|1T|0|0|0|3|I|1J|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@$A|W|B|X|F|G]]|9|@$A|Y|B|Z|1|10]]|C|$]]|$1|H|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]]]

Here's one: <a href="http://pds.twi.tudelft.nl/vakken/in101/labcourse/instruction-set/" rel="nofollow">http://pds.twi.tudelft.nl/vakken/in101/labcourse/instruction-set/</a>

EDIT: This one's better: <a href="https://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/852569B20050FF778525699600719DF2/%24file/6xx_pem.pdf" rel="nofollow">The Programming Environments for 32-Bit Microprocessors</a>

blocks|key|786860|text|RCPU+RISC+Central+Processing+Unit+Reference+Manual|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|786861|entityMap|0|LINK|mutability|MUTABLE|url|http://www.syndex.org/kernels/555/rcpurm.pdf^0|0|1E|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="http://www.syndex.org/kernels/555/rcpurm.pdf" rel="nofollow">RCPU RISC Central Processing Unit Reference Manual</a>

blocks|key|2404855|text|最新的规范是Power+ISA书籍，可用here。它的附录中有很多表格。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2404856|​|2404857|📷|atomic|2404858|2404859|请注意，ISA在一段时间内会有一些波动，因此最好是找到您要模拟的特定内核的文档。|2404860|entityMap|0|LINK|mutability|MUTABLE|url|http://www.power.org/resources/reading/|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/cd0316958a93fed761e98a31d078a7d6.png|imageAlt^0|K|4|0|0|0|0|1|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|I|3|E|5|6|7|18|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|19|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]|T|$5|U|P|V|C|$W|X|Y|-4]]]]

The latest spec is the Power ISA book, available <a href="http://www.power.org/resources/reading/" rel="nofollow noreferrer">here</a>. It has plenty of tables in the appendices. 

<img src="https://i.stack.imgur.com/zdQl6.png" alt="PPC opcode table">

Note that the ISA fluctuated a bit over time, so it might be best to find the doc for the specific core you're going to emulate.

blocks|key|786961|text|许多其他资源早就消失了，这里有一个答案，从2020年起有效，并有最好的机会永远保持这样的状态。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|786962|查找PowerPC微处理器系列的副本:程序员参考指南；Archive.org托管this+one+from+1995，该文档也可以在其他地方找到-搜索文本MPRPPCPRG-01以找到其他副本。|offset|length|786963|在该文档中，跳至以下任一位置：|786964|786965|Page+44表示“4.2+PowerPC指令集列表”部分的开头，以“表33.按助记符排序的完整指令列表”开头；or|unordered-list-item|786966|Page+51表示“表34.按操作码排序的完整指令列表”。|786967|786968|根据文档的日期，这是PowerPC的1995年老版本，即PowerMac的前几代、各种许可的Mac克隆、IBMMac850等。|786969|表很紧凑，仅提供编码信息(遵循IBM约定，位0是最重要的)：|786970|​|786971|📷|atomic|786972|786973|786974|entityMap|0|LINK|mutability|MUTABLE|url|https://archive.org/details/bitsavers_ibmpowerpcrogrammersReferenceOct95_243943|1|https://archive.org/details/bitsavers_ibmpowerpcrogrammersReferenceOct95_243943/page/44/mode/2up|2|https://archive.org/details/bitsavers_ibmpowerpcrogrammersReferenceOct95_243943/page/51/mode/2up|3|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/6d877485baa7bde5953bef691078a523.png|imageAlt|4|https://ask.qcloudimg.com/http-save/yehe-900000/7173b50045df0b11eaaec78e008c5005.png^0|0|14|I|0|0|0|0|0|7|1|0|0|7|2|0|0|0|0|0|0|1|3|0|0|1|4|0|0^^$0|@$1|2|3|4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1K|8|@]|9|@$D|1L|E|1M|1|1N]]|A|$]]|$1|F|3|G|5|6|7|1O|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|1Q|8|@]|9|@$D|1R|E|1S|1|1T]]|A|$]]|$1|L|3|M|5|K|7|1U|8|@]|9|@$D|1V|E|1W|1|1X]]|A|$]]|$1|N|3|-4|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|20|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|21|8|@]|9|@]|A|$]]|$1|U|3|V|5|W|7|22|8|@]|9|@$D|23|E|24|1|25]]|A|$]]|$1|X|3|V|5|W|7|26|8|@]|9|@$D|27|E|28|1|29]]|A|$]]|$1|Y|3|T|5|6|7|2A|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|2B|8|@]|9|@]|A|$]]]|10|$11|$5|12|13|14|A|$15|16]]|17|$5|12|13|14|A|$15|18]]|19|$5|12|13|14|A|$15|1A]]|1B|$5|1C|13|1D|A|$1E|1F|1G|-4]]|1H|$5|1C|13|1D|A|$1E|1I|1G|-4]]]]

Many of the other resources being long-since lost, here's an answer that is valid as of 2020 and has the best chance of remaining so in perpetuity.
Find a copy of PowerPC Microprocessor Family: The Programmer’s Reference Guide; Archive.org hosts <a href="https://archive.org/details/bitsavers_ibmpowerpcrogrammersReferenceOct95_243943" rel="nofollow noreferrer">this one from 1995</a> and that same document is also available elsewhere — search for the text MPRPPCPRG-01 to locate other copies.
In that document, skip to either:
<ul>
<li><a href="https://archive.org/details/bitsavers_ibmpowerpcrogrammersReferenceOct95_243943/page/44/mode/2up" rel="nofollow noreferrer">Page 44</a> for the start of section '4.2 PowerPC Instruction Set Listings', which begins with 'Table 33. Complete Instruction List Sorted by Mnemonic'; or</li>
<li><a href="https://archive.org/details/bitsavers_ibmpowerpcrogrammersReferenceOct95_243943/page/51/mode/2up" rel="nofollow noreferrer">Page 51</a> for 'Table 34. Complete Instruction List Sorted by Opcode'.</li>
</ul>
As per the date of the document, that's the 1995-vintage version of PowerPC, i.e. that which was in the first few generations of PowerMac, the various licensed Mac clones, the IBM ThinkPad 850, etc.
The tables are compact and provide only the encoding information (following the IBM convention that bit 0 is most significant):
<a href="https://i.stack.imgur.com/jHugs.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jHugs.png" alt="Beginning of Table 33" /></a>
<a href="https://i.stack.imgur.com/2uEvU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2uEvU.png" alt="Beginning of Table 34" /></a>

blocks|key|4480200|text|如果您使用的是Mac，请查看/库/应用程序支持/Shark/Helpers/+PowerPC+Help.app，或者选择服务->+ISA+Reference+->+Lookup+PowerPC+Instruction。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4480201|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If you're on a Mac, check out /Library/Application Support/Shark/Helpers/PowerPC Help.app, or choose Services -> ISA Reference -> Lookup PowerPC Instruction.

I am interested in developing a PowerPC emulator for my own learning purposes. I've found a fair amount of resources about programming in PowerPC assembly, but after quite some time looking, I haven't been able to find an instruction/opcode mapping table anywhere yet. Of course, I need the opcodes to be able to write an emulator. Where can I find one?

PowerPC opcode table?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我对开发一个用于我自己的学习目的的PowerPC模拟器很感兴趣。我已经找到了相当多关于PowerPC汇编语言编程的资源，但是在找了很长时间之后，我还没有找到指令/操作码映射表。当然，我需要操作码来编写仿真器。我在哪里可以找到一个？

问PowerPC操作码表？
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回答 6

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