Assembly

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An assembly language (or assembler language) is a low-level programming language for a computer or other programmable device in which there is a very strong (generally one-to-one) correspondence between the language and the architecture's machine code instructions. Each assembly language is specific to a particular computer architecture, in contrast to most high-level programming languages, which are generally portable across multiple architectures, but require interpreting or compiling. Assembly language is converted into executable machine code by a utility program referred to as an assembler; the conversion process is referred to as assembly, or assembling the code.

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I'm trying to create illegal instruction reset.  

I'm programming Infineon TC29x Aurix Tricore Microcontroller based embedded system in 'C' language.  

I need to set program counter to illegal address, i.e. 0x00FF FFFC.  Can this be done with assembly language instructions?
If yes, please instrument assembly language instruction that would set program counter to 0x00FF FFFC while code is running.
0
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I am trying to run a C# Unit test in visual studio, and I am getting the following errors on "DatabaseFactory.CreateDatabase()" from the namespace "Microsoft.Practices.EnterpriseLibrary.Data."


Could not load file or assembly 'Microsoft.Practices.EnterpriseLibrary.Data, Version=6.0.1304.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system could not find the file specified.

{"Could not load file or assembly 'Microsoft.Practices.EnterpriseLibrary.Data, Version=6.0.1304.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system could not find the file specified.":"Microsoft.Practices.EnterpriseLibrary.Data, Version=6.0.1304.0, Culture=neutral, PublicKeyToken=null"}

=== Pre-bind state information ===
LOG: DisplayName = Microsoft.Practices.EnterpriseLibrary.Data, Version=6.0.1304.0, Culture=neutral, PublicKeyToken=null
 (Fully-specified)
LOG: Appbase = file:///C:/Users/username/Source/Workspaces/myProject/myProject1/myProject2/TestResults/Deploy_username 2017-06-15 09_33_17/Out
LOG: Initial PrivatePath = NULL
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Users\username\Source\Workspaces\myProject\myProject1\myProject2\TestResults\Deploy_username 2017-06-15 09_33_17\Out\SLV.Fest.MessageGenerators.Test.dll.config
LOG: Using host configuration file:
LOG: Using machine configuration file from
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Hi everybody, I'm new in assembly 8086.
I tried to print a star every 5 seconds but i didn't succeed.
here is my code:

.model small

.data
star db '*'

.code
start:

mov ax,@data ;initialization
mov ds, ax
mov cl, 0h; save the last time we printed
mov bx,1; using as flag for the first time

pulse:
cli
mov al 0h ;seconds
in al, 070h
out al, 071h ;al=current second(time)
sti

cmp bx,01h
jz initial

sub al,05h; current time-5
cmp cl,al;
jz print
jmp pulse


initial:
dec bx

print:
mov dl,star;
mov ah, 2h
int 21h
mov cl,al; update the last time printed
jmp pulse

end start

my idea was to print a star in the beginning, save this time in the register cl and then to check in any pulse if 5 seconds were past, by subtracting 5 from the new time and compare it to last one.
the problem is that it prints only in the first time and then it stopped printing.
any idea??
thanks a lot!
0
Hi Team,


We are trying to run the .rdlc report  using c# code in asp.net using reportviewer control in aspx page.


And when we run this website on prod server we are getting following error:


****************************************************************************************************************


Exception in page load eventand exception is
---Microsoft.Reporting.WebForms.LocalProcessingException: An error occurred
during local report processing. --->
Microsoft.Reporting.DefinitionInvalidException: The definition of the report
'Test-Consolidate.rdlc'
is invalid. --->
Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: An
unexpected error occurred in Report Processing. --->
System.IO.FileNotFoundException: Could not load file or assembly
'Microsoft.ReportViewer.ProcessingObjectModel, Version=10.0.0.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The
system cannot find the file specified. at
Microsoft.ReportingServices.RdlExpressions.ExprHostCompiler.InternalCompile(Report
report, AppDomain compilationTempAppDomain, Boolean refusePermissions) at
Microsoft.ReportingServices.RdlExpressions.ExprHostCompiler.<>c__DisplayClass1.b__0()
at
Microsoft.ReportingServices.Diagnostics.RevertImpersonationContext.<>c__DisplayClass1.b__0(Object
state) at System.Security.SecurityContext.Run(SecurityContext securityContext,
ContextCallback callback, Object state) at …
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Okay guys so I know I saw a similar thread like this already but I am still confused as to what my input should be.

I know this function takes in a string of length 6 and then it converts the characters somehow and they need to add up to 0x24 or 36
which can be seen at line <+53>.

The array table gives me values but I have no clue as to what letters correspond with what numbers. If I enter ffffff then masking the numbers for the right most bits gives me f  =  0110 or 6. ffffff = 36 but this still explodes my bomb.

Can someone please help me . Thank you.


Dump of assembler code for function phase_5:
   0x0000000000401123 <+0>:     push   %rbx
   0x0000000000401124 <+1>:     mov    %rdi,%rbx
   0x0000000000401127 <+4>:     callq  0x401361 <string_length>
   0x000000000040112c <+9>:     cmp    $0x6,%eax
   0x000000000040112f <+12>:    je     0x401136 <phase_5+19>
   0x0000000000401131 <+14>:    callq  0x4015e4 <explode_bomb>
   0x0000000000401136 <+19>:    mov    $0x0,%eax
   0x000000000040113b <+24>:    mov    $0x0,%edx
   0x0000000000401140 <+29>:    movzbl (%rbx,%rax,1),%ecx
   0x0000000000401144 <+33>:    and    $0xf,%ecx
=> 0x0000000000401147 <+36>:    add    0x4025e0(,%rcx,4),%edx
   0x000000000040114e <+43>:    add    $0x1,%rax
   0x0000000000401152 <+47>:    cmp    $0x6,%rax
   0x0000000000401156 <+51>:    jne    0x401140 <phase_5+29>
   0x0000000000401158 <+53>:    cmp    $0x24,%edx
   0x000000000040115b <+56>:    je     0x401162 <phase_5+63>
   

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0
Hello,
i am receiving an error after moving the database server to another drive. I have tried the following ways to move the data:
1. detach and attach, then manually copy the files to the new location
2. i ve tried using the copy wizard
I continue getting the same error any way that i move the database.
To try and resolve the issue, i have tried to use the following lines
USE <DatabaseName>
GO

EXEC sp_changedbowner ‘sa’
0
Hi All,

I have compile error below.


using System;
using System.Collections.Generic;
 
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Net;
using System.Web.Http;
 
using System.Web.OData;

Error      8      'System.Web.OData.Delta<ERVJGMERPDATASERVICE.TMCARCOLOR>' does not contain a definition for 'GetEntity' and no extension method 'GetEntity' accepting a first argument of type 'System.Web.OData.Delta<ERVJGMERPDATASERVICE.TMCARCOLOR>' could be found (are you missing a using directive or an assembly reference?)       

What component is missing ?

Thank you.
0
Could not load file or assembly 'Microsoft.ApplicationBlocks.ExceptionManagement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=7fef01ac775b6e05' or one of its dependencies. The system cannot find the file specified.
0
summation,Subtraction,multiplication,division in Aseembly?
0
programe code

generate int from 1 to 10 using loop and calculate theie squares inside the loop store in an array

please help me
0
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I need a help of reading from file equations and turn them from infix to postfix then find the result by using stack in assembly language .
0
I have a VS2015 project where I need to reference a Matlab .net assembly. In building the .net assembly in Matlab they do not support frameworks beyond 4.0. So I uninstalled all of the 4.5 and 4.6 stuff I had and reinstalled 4.0 to get a successful Matlab .net assembly build.

Next step was to reinstall .net 4.6.

But when I do I cannot now open my project. The first time it opened it told me i had selected 4.0 in the properties and either needed to now select 4.5.2 or 4.0. I tried the 4.0, but now it won't open.

How do I find out how to remedy this?

screen shot
0
I feel like I'm very close to the solution.  It is similar to others but I'm having trouble.

So I found out the contents of this array but I'm very confused on how to get the values to convert into characters of a string. I am also confused as to what value the total string should be set to. I stuck between 2, 60 and 85?

Dump of assembler code for function phase_5:
   0x000000000040111d <+0>:      push   %rbp
   0x000000000040111e <+1>:      mov    %rsp,%rbp
   0x0000000000401121 <+4>:      push   %rbx
   0x0000000000401122 <+5>:      sub    $0x8,%rsp
   0x0000000000401126 <+9>:      mov    %rdi,%rbx
   0x0000000000401129 <+12>:      callq  0x40137b <string_length>
   0x000000000040112e <+17>:      cmp    $0x6,%eax
   0x0000000000401131 <+20>:      je     0x401138 <phase_5+27>
   0x0000000000401133 <+22>:      callq  0x401695 <explode_bomb>
   0x0000000000401138 <+27>:      mov    $0x0,%eax
   0x000000000040113d <+32>:      mov    $0x0,%edx
   0x0000000000401142 <+37>:      movzbl (%rbx,%rax,1),%ecx
   0x0000000000401146 <+41>:      and    $0xf,%ecx
   0x0000000000401149 <+44>:      add    0x4027a0(,%rcx,4),%edx
   0x0000000000401150 <+51>:      add    $0x1,%rax
   0x0000000000401154 <+55>:      cmp    $0x6,%rax
   0x0000000000401158 <+59>:      jne    0x401142 <phase_5+37>
   0x000000000040115a <+61>:      cmp    $0x3c,%edx
   0x000000000040115d <+64>:      je     0x401164 <phase_5+71>
   0x000000000040115f <+66>:      callq  0x401695 <explode_bomb>
   0x0000000000401164 <+71>:      add    $0x8,%rsp
   0x0000000000401168 <+75>:      pop    %rbx
   …
0
I am trying to learn and then teach ARM processor and the assembly language. Can anyone point me to the correct direction to start with?  In particular I would like to know the best free simulators for ARM systems.
Thanks
0
How to count input numbers in a little man computer program
e.g 25 45 63
that means 3 numbers...the output should be 3
i need the coding
thanks
0
how can i write microprocessors 8086 instruction of 100 micro second delay with comment
0
We are asked to calculate the log2 of number and store the result in log in assembly.  I am given this to work with:
#include <iostream>
using namespace std;
int main(int argn, char *argv[]) {
int number, log;
cout << "Enter a number >";
cin >> number;
_asm {
// Calculate the log2 of number and store the result in log
}
cout << "The logarithm is " << log << endl;
return 0;
}
0
I'm new to assembly & I need help with this exercise which is parsing through a string of characters and create and print certain statistics regarding the string.

This is the string I need to define:
str1 byte 'rfDy8nNqbYv~RABAB%E86nBA@ABEgh86Abeg'


I need to create the following output:

Total number of characters processed:
(The number)

Number of uppercase characters:
(The number)

Number of lowercase characters:
(The number)

Digit Total:
(The total)

Digit Average:
(the average)

Number of character digits:
(the number)

Number of invalid characters:
(The number)
0
(gdb) disas
func4
Dump of assembler code for function phase_4:
   0x0000000000401108 <+0>: sub    $0x18,%rsp
   0x000000000040110c <+4>: lea    0xc(%rsp),%rcx
   0x0000000000401111 <+9>: lea    0x8(%rsp),%rdx
   0x0000000000401116 <+14>:    mov    $0x402931,%esi
   0x000000000040111b <+19>:    mov    $0x0,%eax
   0x0000000000401120 <+24>:    callq  0x400d00 <__isoc99_sscanf@plt>
   0x0000000000401125 <+29>:    cmp    $0x2,%eax
   0x0000000000401128 <+32>:    jne    0x401138 <phase_4+48>
   0x000000000040112a <+34>:    mov    0xc(%rsp),%eax
   0x000000000040112e <+38>:    cmp    $0x1,%eax
   0x0000000000401131 <+41>:    jle    0x401138 <phase_4+48>
   0x0000000000401133 <+43>:    cmp    $0x4,%eax
   0x0000000000401136 <+46>:    jle    0x40113d <phase_4+53>
   0x0000000000401138 <+48>:    callq  0x401642 <explode_bomb>
   0x000000000040113d <+53>:    mov    0xc(%rsp),%esi
   0x0000000000401141 <+57>:    mov    $0x8,%edi
   0x0000000000401146 <+62>:    callq  0x4010b2 <func4>
   0x000000000040114b <+67>:    cmp    0x8(%rsp),%eax
   0x000000000040114f <+71>:    je     0x401156 <phase_4+78>
=> 0x0000000000401151 <+73>:    callq  0x401642 <explode_bomb>
   0x0000000000401156 <+78>:    add    $0x18,%rsp
   0x000000000040115a <+82>:    retq
End of assembler dump.

0000000000401108 <phase_4>:
  401108:   48 83 ec 18             sub    $0x18,%rsp
  40110c:   48 8d 4c 24 0c          lea    0xc(%rsp),%rcx
  401111:   48 8d 54 24 08
0

Assembly

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Solutions

1

Articles & Videos

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Contributors

An assembly language (or assembler language) is a low-level programming language for a computer or other programmable device in which there is a very strong (generally one-to-one) correspondence between the language and the architecture's machine code instructions. Each assembly language is specific to a particular computer architecture, in contrast to most high-level programming languages, which are generally portable across multiple architectures, but require interpreting or compiling. Assembly language is converted into executable machine code by a utility program referred to as an assembler; the conversion process is referred to as assembly, or assembling the code.

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