Homework Answers
The program will crash because there are no such instructions as example1 and proc. Even there are too many memory references in the program.
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Remember to use step into when tracing a procure's call Convention el proc program mple1 Problem ...
What will the stack contain before INVOKE ExitProcess get executed? 1: main PROC 2: push 10...
What will the stack contain before INVOKE ExitProcess get executed? 1: main PROC 2: push 10 3: push 20 4: call Ex2Sub 5: pop eax 6: INVOKE ExitProcess,0 7: main ENDP 8: 9: Ex2Sub PROC 10: pop eax 11: ret 12: Ex2Sub ENDP
And also when recursive(5). Consider the following funtion int recursive(int n) f The assembly code equivalent...
And also when recursive(5).
Consider the following funtion int recursive(int n) f The assembly code equivalent of the above function is: recursive push %ebp mov %esp,%ebp push %ebx sub $0x14,%esp cmpl $0x1,0x8(%ebp) je L1 cmpl $0x2,0x8(%ebp) jne L2 L1 mov 0x8 (%ebp),%eax jmp L3 L2 mov 0x8 (%ebp),%eax sub $0x1,%eax mov %eax, (%esp call recursive mov %eax,%ebx mov ox8(%ebp),%eax sub $0x2,%eax mov %eax, (%esp call recursive imul %ebx,%eax L3 add $0x14,%esp pop %ebx pop %ebp ret
0x401050 : push %ebp 0x401051 : mov %esp,%ebp 0x401053 : sub $0xc,%esp 0x401056 : mov 0x8(%ebp),%eax...
0x401050 : push %ebp 0x401051 : mov %esp,%ebp 0x401053 : sub $0xc,%esp 0x401056 : mov 0x8(%ebp),%eax 0x401059 : add $0x4,%eax 0x40105c : mov %eax,0xfffffffc(%ebp) 0x40105f : mov 0x8(%ebp),%eax 0x401062 : imul 0xc(%ebp),%eax 0x401066 : mov %eax,0xfffffff8(%ebp) 0x401069 : mov 0xc(%ebp),%edx 0x40106c : mov 0x8(%ebp),%eax 0x40106f : sub %edx,%eax 0x401071 : mov %eax,0xfffffff4(%ebp) 0x401074 : mov 0xfffffff8(%ebp),%eax 0x401077 : add 0xfffffffc(%ebp),%eax 0x40107a : add 0xfffffff4(%ebp),%eax 0x40107d : leave 0x40107e : ret 0x401089 : push %ebp 0x40108a : mov %esp,%ebp 0x40108c :...
Using the AddTwo program from Section 3.2 as a reference, write a program that calculates the...
Using the AddTwo program from Section 3.2 as a reference, write a program that calculates the following expression, using registers: A = (A + B) + (C + D). Assign integer values to the EAX, EBX, ECX, and EDX registers. AddTwo program: ; AddTwo.asm - adds two 32-bit integers ; Chapter 3 example .386 .model flat,stdcall .stack 4096 ExitProcess PROTO, dwExitCode:DWORD .code main PROC mov eax,5 ; move 5 to the eax register add eax,6 ; add 6 to the...
Subtracting three integers. Using the ADDSUB program from the section 3.2 (shown below) as a reference,...
Subtracting three integers. Using the ADDSUB program from the section 3.2 (shown below) as a reference, write a program that subtracts three integers only 16-bit registers. Insert a cal DumpRegs statement to display the register values This program must be done using Visual studio. Please submit .asm file or copy/paste your program here. Please note that you will have two extra days of grace period for all homeworks, including midterm and final exam projects. ; AddTwo.asm - adds two 32-bit...
Create a flowchart for the following algorithm Program: (exchange.asm) Thia program exchanges every pair of values in a...
Create a flowchart for the following algorithm
Program: (exchange.asm) Thia program exchanges every pair of values in an array of even numbe red size model flat,stdcall stack 4096 ExitProcess PROTO, dwExitCode: dword data arrayDW dword 1, .code main PROC ov esi initialize index register with 0(i-0) loop counter mov ecx, LENGTHOF arrayDw) /2 L1 mov eax, arrayDW[esi) mov ebx, arrayDW [esi 41 mov arrayDW[esi], ebx move the item i into EAX 2move item 141 into EBX move item i+1 into...
X86 Assembly Language Help to implement the CipherChar Procedure at the end of the given code...
X86 Assembly Language Help to implement the CipherChar Procedure at the end of the given code INCLUDE Irvine32.inc .data KeyPrompt BYTE "Enter the passphrase: ",0 TextPrompt BYTE "Enter the plaintest: ",0 str1 BYTE "The passphrase has length:",0 str2 BYTE "The plaintest has length:",0 KeyIs BYTE "The passphrase: ",0 PlainTextIs BYTE "The plaintext: ",0 CipherTextIs BYTE "The ciphertext: ",0 KMAX = 64 ; passphrase buffer maximum size BMAX = 128 ; test...
Write a program that turns a 32-bit numeric value (e.g., 0xFFFFh) and converts it to a...
Write a program that turns a 32-bit numeric value (e.g., 0xFFFFh) and converts it to a byte array such that it can be printed to the screen using a system call method. A loop is necessary for converting the numeric value to ASCII for output. Again, use a system call (e.g., int 80h) to print the value to the console. Calling external functions (e.g. printf) is not allowed. You may use the starter file attached to this assignment. PLEASE WRITE...
NOTE: explain the lines in comments for better understanding Write an assembly program (for x86 processors...
NOTE: explain the lines in comments for better understanding Write an assembly program (for x86 processors - Irvine) that has two procedures, a main procedure and a procedure called Fib. The fib procedure is to uses a loop to calculate and printout the first N Fibonacci numbers. Fibonacci sequence is described by the following formula: Fib(1) = 1, Fib(2) = 1, Fib(n) = Fib(n – 1) + Fib(n – 2). The value of N is to be communicated to this...
And also when recursive(5).
Consider the following funtion int recursive(int n) f The assembly code equivalent of the above function is: recursive push %ebp mov %esp,%ebp push %ebx sub $0x14,%esp cmpl $0x1,0x8(%ebp) je L1 cmpl $0x2,0x8(%ebp) jne L2 L1 mov 0x8 (%ebp),%eax jmp L3 L2 mov 0x8 (%ebp),%eax sub $0x1,%eax mov %eax, (%esp call recursive mov %eax,%ebx mov ox8(%ebp),%eax sub $0x2,%eax mov %eax, (%esp call recursive imul %ebx,%eax L3 add $0x14,%esp pop %ebx pop %ebp ret
Create a flowchart for the following algorithm
Program: (exchange.asm) Thia program exchanges every pair of values in an array of even numbe red size model flat,stdcall stack 4096 ExitProcess PROTO, dwExitCode: dword data arrayDW dword 1, .code main PROC ov esi initialize index register with 0(i-0) loop counter mov ecx, LENGTHOF arrayDw) /2 L1 mov eax, arrayDW[esi) mov ebx, arrayDW [esi 41 mov arrayDW[esi], ebx move the item i into EAX 2move item 141 into EBX move item i+1 into...
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