1. For each instruction, give the 80x86 opcode and total number of b.docx
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The document provides various assembly language instructions for the 80x86 architecture, specifically in 64-bit mode, including opcode examples and their byte sizes. It also requests code snippets for converting Fahrenheit to Celsius, setting up GPS locations, and analyzing the validity of provided code. Additionally, it asks for a while loop implementation with jumps and labels for iteration control.
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![1. For each instruction, give the 80x86 opcode and total number
of bytes of object code, including prefix bytes. Assume you are
in 64-bit mode and that
word0p, dbl0p
, and
quad0p
reference a
word, doub
leword and
quadword
in data, respectively.
Add ax, word0p
Sub dbl0p, ebx
Sub rax, 10
Add quad0p, 1000
Inc r10b
Dec word0p
Neg rdx
Inc QWORD PTR [rdx]
2. Please provide code converting a Fahrenheit to a Celsius
using the registers edx and eax?
3. Please write the commands (declarations) to setup a 2-byte
and 4-byte GPS location.](https://image.slidesharecdn.com/1-221201002351-ef89a2cf/85/1-For-each-instruction-give-the-80x86-opcode-and-total-number-of-b-docx-1-320.jpg)
![4. Is the following code valid? Why or why not:
mov eax, [ebx-ecx] ;
mov [eax+esi+edi], ebx ;
cmp eax, edx ;
xor ecx, ecx ;
inc eax ;
5. What does the following code do?
Push ebp ;
Mov ebp, esp ;
Push ebx ;
6. Please provide code for the following scenario:
Create a while loop that that checks for 4 iteractions
Create jumps and labels for each case
Provide an exitcode along with possible return codes.](https://image.slidesharecdn.com/1-221201002351-ef89a2cf/85/1-For-each-instruction-give-the-80x86-opcode-and-total-number-of-b-docx-2-320.jpg)
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1. For each instruction, give the 80x86 opcode and total number of b.docx
- 1. 1. For each instruction, give the 80x86 opcode and total number of bytes of object code, including prefix bytes. Assume you are in 64-bit mode and that word0p, dbl0p , and quad0p reference a word, doub leword and quadword in data, respectively. Add ax, word0p Sub dbl0p, ebx Sub rax, 10 Add quad0p, 1000 Inc r10b Dec word0p Neg rdx Inc QWORD PTR [rdx] 2. Please provide code converting a Fahrenheit to a Celsius using the registers edx and eax? 3. Please write the commands (declarations) to setup a 2-byte and 4-byte GPS location.
- 2. 4. Is the following code valid? Why or why not: mov eax, [ebx-ecx] ; mov [eax+esi+edi], ebx ; cmp eax, edx ; xor ecx, ecx ; inc eax ; 5. What does the following code do? Push ebp ; Mov ebp, esp ; Push ebx ; 6. Please provide code for the following scenario: Create a while loop that that checks for 4 iteractions Create jumps and labels for each case Provide an exitcode along with possible return codes.