COMPUTER SYSTEMS&MOD MSGT/ET SA AC PKG
3rd Edition
ISBN: 9780134671123
Author: Bryant
Publisher: PEARSON
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Chapter 11.3, Problem 11.1PP
Program Plan Intro
IP addresses:
- The IP address denotes an unsigned integer that is 32-bit.
- The IP addresses is been stored by network programs in IP address structure.
- The addresses present in IP address structure are stored in network byte order.
- An unsigned 32-bit integer is converted from host byte order to network byte order by “htonl” function.
- An unsigned 32-bit integer is converted from network byte order host byte order by “ntohl” function.
- The IP address is presented to humans in a form known as “dotted-decimal” notation.
- Each byte is been represented by its corresponding decimal value and is separated by a period from other bytes.
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(c) The following Sigma 16 program has been loaded into memory at address 0000:
load R3,y[RO]
load R4,x[RO]
lea R5, 2[RO]
sub R1,R4,R3
mul R2,R1,R5
store R2,w[RO]
trap RO,RO,RO
x data 10
y data 12
w data 0
Show the content of the memory writing hexadecimal representation and using a
table with 3 columns: the memory address, the contents of that memory address,
and an explanation of what "the content (of that memory address) means". As a
reference, here are the opcodes for RRR instructions: add 0, sub 1, mul 2, trap c.
And here the opcodes for RX instructions: lea 0, load 1, store 2.
[7]
4. The following problems deal with translating from C code to MIPS code or MIPS code to
C code. Assume that the signed variables f, g, h and i are assigned to registers $s0,
$1, $2, $3 respectively. Assume the base address of the integer arrays A and B are
in registers $s4 and $55 respectively. Translate the following MIPS code to C code.
Please indicate which elements of integer array A and B are modified by this code.
addi $t0, $1, 6
sll $t0, $t0, 4
add $t0, $t0, $5
Iw $t0, 0($t0)
sw $t0, 4($4)
3- What is the difference between: a- MOV BX,[1234H] and LEA BX,[1234H] b- LDS AX,[200H] and LES AXX,[200H] 4-Use MOV to load address of memory MEM1.
Chapter 11 Solutions
COMPUTER SYSTEMS&MOD MSGT/ET SA AC PKG
Ch. 11.3 - Prob. 11.1PPCh. 11.3 - Prob. 11.2PPCh. 11.3 - Practice Problem 11.3 (solution page 967) Write a...Ch. 11.4 - Prob. 11.4PPCh. 11.5 - Prob. 11.5PPCh. 11 - Prob. 11.6HWCh. 11 - Prob. 11.7HWCh. 11 - Prob. 11.8HWCh. 11 - Modify TINY SO that when it serves static content,...Ch. 11 - Prob. 11.10HW
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