Lecture10_handout-F09

Lecture10_handout-F09 - CE-320 Microcomputers I Fall B 2009...

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CE-320 Microcomputers I Fall B 2009 Lecture 10 Page 1 Lecture 10 Multiple-Precision Arithmetic Purpose: Use multiple precision arithmetic to add and subtract large numbers Practice writing programs in assembly
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CE-320 Microcomputers I Fall B 2009 Lecture 10 Page 2 Precision The term “precision” is often used to refer to the size of a unit of data manipulated by the processor. For most, single-precision refers to instructions that manipulate one byte at a time. Example of single-byte addition and subtraction instructions seen in the course so far are… Double-precision refers to 2-byte operations in the Star12. We’ve already used most of the double-precision instructions. One could also say that these are double-precision.
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CE-320 Microcomputers I Fall B 2009 Lecture 10 Page 3 Multiple-Precision Adding and subtracting numbers longer than single precision (or double-precision if supported by the processor) introduces an issue. Carries
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Lecture10_handout-F09 - CE-320 Microcomputers I Fall B 2009...

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