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\section*{Handout 7 (Compilation)}+
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The purpose of a compiler is to transform a program, a human+
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can write, into code the machine can run as fast as possible.+
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The fastest code would be machine code the CPU can run+
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directly, but it is often enough to improve the speed of a+
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program by just targeting a virtual machine. This produces not+
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the fastest possible code, but code that is fast enough and+
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has the advantage that the virtual machine care of things a+
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compiler would normally need to take care of (like explicit+
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memory management).+
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We will be generating code for the Java Virtual Machine. This+
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is a stack-based virtual machine which will make it easy to+
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generate code for arithmetic expressions. Recall+
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that our+
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