6.) Write the assembly code for the following piece of code. Note: r,g,y,z correlate with the...

6.) Write the assembly code for the following piece of code. Note: r,g,y,z correlate with the w4, w8, w11, and w15.

if (g * y > 25) || (y == z / 8) && (y * 4 < z - g))
        y = r / 32;
else
        g = 8 * (r - z);

Solutions

Expert Solution

      ##Intel asm Syntax    Compiler:x86-64 gcc 10.2
        
  ## if (g * y > 25) || (y == z / 8) && (y * 4 < z - g))
        mov     eax, DWORD PTR [rbp-4] 
        imul    eax, DWORD PTR [rbp-8]          
        mov     eax, DWORD PTR [rbp-12]          
        lea     edx, [rax+7]
        test    eax, eax                         
        cmovs   eax, edx
        sar     eax, 3
        cmp     DWORD PTR [rbp-8], eax                 
        jne     .L3
        mov     eax, DWORD PTR [rbp-8]
        lea     edx, [0+rax*4]
        mov     eax, DWORD PTR [rbp-12]
        sub     eax, DWORD PTR [rbp-4]
        cmp     edx, eax
        jge     .L3

  ## y = r / 32;
        mov     eax, DWORD PTR [rbp-16]                   
        lea     edx, [rax+31]
        test    eax, eax
        cmovs   eax, edx
        sar     eax, 5
        mov     DWORD PTR [rbp-8], eax
        jmp     .L4


  ## g = 8 * (r - z);   
        mov     eax, DWORD PTR [rbp-16]                                          
        sub     eax, DWORD PTR [rbp-12]
        sal     eax, 3
        mov     DWORD PTR [rbp-4], eax

venereology answered 1 year ago

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