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How does the following codes work and what are the errors why it is not debugging. #include extern int add ( int a ,
How does the following codes work and what are the errors why it is not debugging.
#include
extern int addint a int b; External declaration for assembly function
int main
Prompt user for calculator operation
printfChoose operation : ;
char operation;
scanfc &operation;
Prompt user for two numbers
printfEnter first number: ;
int num;
scanfd #
printfEnter second number: ;
int num;
scanfd #
int result;
Call appropriate assembly routine based on the chosen operation
switch operation
case :
result addnum num; Call assembly routine for addition
break;
Add cases for other operations
default:
printfInvalid operation
;
return ; Exit with an error code
Print the result to the console
printfResult: d
result;
return ; Exit successfully
Now, the corresponding assembly language file calculatorasm.asm for the addition operation:
assembly
section text
global add ; Make the symbol add globally accessible
add:
; Purpose: Add two numbers
; Input: eax first number, ebx second number
; Output: eax result of addition
add eax, ebx ; Add the two numbers
ret ; Return control to the calling C program
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