MASM x86 Assembly Crash - Access Violation


Im just trying to get the basics of assembly and just wanted to test adding two number together, however when i compile it and run the executable it crashes and returns the error:

Unhandled exception at 0x00401005 in AddNums.exe: 0xC0000005: Access violation reading location 0xFFFFFFFF.

This is my code:

.model flat, C
option casemap :none


 mov eax, 10
 int 21h

 mov ebx, 5
 int 21h

 add eax, ebx
 int 21h
end main

I am using MASM on windows 10

asked on Stack Overflow Nov 22, 2019 by euandeas

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