Register names - GPRs appear in assembly listings as r0.r31. Immediately, there is a wealth of new stuff to talk about. This familiar operation simply adds the contents of GPRs rA and rB together, and writes the result to rD. Much of this will be revisited, and the inevitable exceptions will be pointed out, as we go. Lets introduce an example statement to look at, and enumerate as much as possible that is common to most instructions. If you have, lets jump in and learn its lingo.Ħ01-Speak - Terms, Notation and Generalities If you havent already read last months article, you might want to go back and learn about the environment and data types of the 601. This article is a compressed and intelligently-filtered user manual. This month, well summarize its assembly language syntax in a condensed and easily digestible form for quick reference. Last month we took a brief look at the hardware architecture of the MPC601 processor, and discussed the user programming model. Speak like a native in only two easy lessons! Welcome to lesson two.īy Bill Karsh, article is part two of a two-part article on understanding the PowerPC architecture and assembly language. PowerPC Assembly Volume Number: 10 Issue Number: 9 Column Tag: PowerPC Essentials Educational Institution and Student Discounts.
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