Low-Level C Programming pptx
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Low-Level C Programming – p. 1/49
Low-Level C Programming
ThS. Le Hoai Nghia
February 2009
UNIVERSITY OF INFORMATION TECHNOLOGY
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Goals
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Like Writing English
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Arithmetic
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Simple benchmarks
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Simple benchmarks
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C Arithmetic Trivia
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Arithmetic Lessons
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Bit Manipulation
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Bit-manipulation basics
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Advanced bit manipulation
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Faking Multiplication
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Faking Multiplication
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Faking Division
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Multi-way branches
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Nios code for if-then-else
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Nios code for switch (1)
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Nios code for switch (2)
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Computing Discrete Functions
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Computing Discrete Functions
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Function calls
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Code for foo() (unoptimized)
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Code for foo() (optimized)
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Strength Reduction
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Unoptimized array code (fragment)
