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−The PowerPC is a Superscalar microprocessor which means it has separate execution units. This are an integer unit, a floating-point unit, a branching unit, and even more depending on the processor type. These units can execute instructions in parallel within one clock cycle.
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==Introduction==
==Introduction==
−This introduction for PowerPC assembler assumes that you are somewhat familiar with the Intel assembler. It is not written as a tutorial for beginners in assembly programming. Hopefully it is possible to understand this tutorial if you just have programed in C before. This tutorial will allow you to write applications in PowerPC assembler. Disassembling compiled code is not covered, however, knowing assembler is a prerequisite to disassemble code.
+This introduction to PowerPC assembler assumes that you are somewhat familiar with the Intel assembler. It is not written as a tutorial for beginners in assembly programming. Hopefully it is possible to understand this tutorial if you just have programed in C before. This tutorial will allow you to write applications in PowerPC assembler. Disassembling compiled code is not covered, however, knowing assembler is a prerequisite to disassemble code.
−The PowerPC is a RISC (Reduced Instruction Set Computing) processor architecture. PowerPC is an acronym which shall stand for Performance Optimization With Enhanced RISC / Performance Chip or Power Performance Computing. The specification for it was released in 1993 and is a 64-bit specification with a 32-bit subset. Almost all PowerPC processors are 32-bit now but feature a 64-bit data bus.
+The PowerPC is a RISC (Reduced Instruction Set Computing) processor architecture. PowerPC is an acronym which stands for Performance Optimization With Enhanced RISC / Performance Chip or Power Performance Computing. The specification for it was released in 1993 and is a 64-bit specification with a 32-bit subset. Almost all PowerPC processors are 32-bit now but feature a 64-bit data bus.
−The PowerPC was developed jointly by Apple, IBM and Motorola (now named Freescale). There are many different PowerPC processors available. Apple has been using the PowerPC in the Macintosh systems, IBM is using it in its RS/6000 and pSeries computers und Nintendo used it in its Gamecube and in Wii playstations. There are many embedded applications using the PowerPC.
+The PowerPC was developed jointly by Apple, IBM and Motorola (now named Freescale). There are many different PowerPC processors available. Apple has been using the PowerPC in Macintosh systems, IBM is using it in its RS/6000 and pSeries computers, and Nintendo used it in its GameCube, Wii, and Wii U systems. There are many embedded devices using the PowerPC.
−The PowerPC is a superscalar microprocessor which means it has separate execution units. There is an integer unit, a floating-point unit, a branching unit, and even more depending on the processor type. These units can execute instructions in parallel within one clock cycle.
== The registers ==
== The registers ==