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ister. What does it do? Idi r16, 0 mov rl, r16 subi r16, 3 Ids r0, OxSF sts OxSr, rl s register is a so-called I/O register, that is also memory mapped to I/0 ac ns in and out load and store I/0 registers. What does the following progr Idi r16, 0 mov rl, r16

ister. What does it do? Idi r16, 0 mov rl, r16 subi r16, 3 Ids r0, OxSF sts OxSr, rl s register is a so-called I/O register, that is also memory mapped to I/0 ac ns in and out load and store I/0 registers. What does the following progr Idi r16, 0 mov rl, r16

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Which of the two programs is faster?

 
The status register is mapped to data memory address OX5F. The following program manipulates the status register. What does it do? Idi r16, 0 mov rl, r16 subi r16, 3 Ids ro, OX5F sts OX5P, r1 The status register is a so-called I/O register, that is also memory mapped to I/0 address 0×3F. AVR instructions in and out load and store I/0 registers. What does the following program do? Idi r16, 0 mov rl, r16 subi r16, 3 in ro, OX3F out OX3F, r1
Transcribed Image Text:The status register is mapped to data memory address OX5F. The following program manipulates the status register. What does it do? Idi r16, 0 mov rl, r16 subi r16, 3 Ids ro, OX5F sts OX5P, r1 The status register is a so-called I/O register, that is also memory mapped to I/0 address 0×3F. AVR instructions in and out load and store I/0 registers. What does the following program do? Idi r16, 0 mov rl, r16 subi r16, 3 in ro, OX3F out OX3F, r1
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