Unhandled exception at 0x0056FC80 in Assignment7.exe: 0xC0000005: Access violation executing location 0x0056FC80.

Ethan Russell 0 Reputation points
2024-04-18T05:14:21.8033333+00:00
  1. Unhandled exception at 0x0056FC80 in Assignment7.exe: 0xC0000005: Access violation executing location 0x0056FC80. When I click build, it is successful but I keep getting this when im debugging! can someone help me fix this?
       .386
    

.model flat, stdcall .stack 4096

ExitProcess PROTO :DWORD WriteConsoleA PROTO :DWORD, :DWORD, :DWORD, :DWORD, :DWORD

.data

numbers DWORD 12345678h, 23456781h, 45678123h, 78654321h, 56781234h
buffer BYTE 9 DUP(0)
```.code
main PROC

; Iterate through each packed decimal integer mov ecx, LENGTHOF numbers mov esi, OFFSET numbers mov edi, OFFSET buffer

; Pass the current packed decimal integer and buffer address to PackedToAsc push edi push [esi] call PackedToAsc add esp, 8 ; Clean up the stack

; Display the ASCII string push OFFSET buffer call writeString add esp, 4

; Move to the next packed decimal integer add esi, 4

; Output a newline character mov edx, OFFSET CRLF call writeString

; Check if all integers have been converted loop convert_loop

; Exit the program INVOKE ExitProcess, 0

; Input: eax = packed decimal integer ; edi = address of buffer to store ASCII digits ; Output: ASCII representation of the packed decimal integer in the buffer

; Initialize index and clear buffer xor ecx, ecx

; Loop through each nibble of the packed decimal integer mov edx, eax ; Copy packed decimal integer shr edx, 28 ; Shift to get the high nibble and edx, 0Fh ; Mask to isolate the nibble add dl, '0' ; Convert to ASCII mov [edi + ecx], dl ; Store in buffer inc ecx

mov edx, eax ; Copy packed decimal integer shr edx, 24 ; Shift to get the second nibble and edx, 0Fh ; Mask to isolate the nibble add dl, '0' ; Convert to ASCII mov [edi + ecx], dl ; Store in buffer inc ecx

mov edx, eax ; Copy packed decimal integer shr edx, 20 ; Shift to get the third nibble and edx, 0Fh ; Mask to isolate the nibble add dl, '0' ; Convert to ASCII mov [edi + ecx], dl ; Store in buffer inc ecx

mov edx, eax ; Copy packed decimal integer shr edx, 16 ; Shift to get the fourth nibble and edx, 0Fh ; Mask to isolate the nibble add dl, '0' ; Convert to ASCII mov [edi + ecx], dl ; Store in buffer inc ecx

; Null-terminate the string mov byte ptr [edi + ecx], 0

ret


writeString PROC

; Input: esi = address of null-terminated string ; Output: string is displayed on console

; Load arguments for WriteConsoleA push -11 ; hConsoleOutput push esi ; lpBuffer mov edx, LENGTHOF buffer - 1 ; Length of the string push edx ; nNumberOfCharsToWrite push 0 ; lpNumberOfCharsWritten call WriteConsoleA ; Call WriteConsoleA to display the string add esp, 16 ; Clean up the stack

ret


CRLF BYTE 0DH, 0AH, 0 ; Newline character sequence

main ENDP
END main
   
   
Visual Studio Debugging
Visual Studio Debugging
Visual Studio: A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.Debugging: The act or process of detecting, locating, and correcting logical or syntactical errors in a program or malfunctions in hardware. In hardware contexts, the term troubleshoot is the term more frequently used, especially if the problem is major.
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