MIPS Assembly (Random Numbers) 2 Lab Schedule Activities - - PowerPoint PPT Presentation
Computer Systems and Networks ECPE 170 Jeff Shafer University of the Pacific MIPS Assembly (Random Numbers) 2 Lab Schedule Activities Assignments Due This Week Lab 10 Due by Apr 11 th 5:00am Lab work time MIPS
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ECPE 170 – Jeff Shafer – University of the Pacific
Activities
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This Week
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Lab work time
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MIPS Random Number Generator
Assignments Due
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Lab 10
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Due by Apr 11th 5:00am ì
Lab 11
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Due by Apr 19th 5:00am ì
Lab 12
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Due by May 1st 5:00am
Spring 2019 Computer Systems and Networks
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Spring 2019 Computer Systems and Networks
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ì MIPS syscalls do not provide a random number
generator L
ì Need to create a simple one for Lab 11
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Low quality - Not suitable for cryptography!
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m_w = <choose-initializer>; /* must not be zero */ m_z = <choose-initializer>; /* must not be zero */ uint32_t get_random() { m_z = 36969 * (m_z & 65535) + (m_z >> 16); m_w = 18000 * (m_w & 65535) + (m_w >> 16); return (m_z << 16) + m_w; /* 32-bit result */ }
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