SO 78383750

#include <stdio.h>
#define MINGW_ASM

// compile with:
//     gcc -masm=intel -m32 file.c

int main() {
    unsigned char feld[5]; // Initialize the array with 0
    unsigned char* p_feld = feld; // Set the pointer to the first element of the array
    unsigned short int i;

#ifdef MINGW_ASM
    printf("Executing assembler code.\n"); // Corrected quotation marks
    asm (
        "mov eax, 4;"          // Set the starting index for the loop
        "mov cl, 5;"           // Initialize with the value 5
        "loop: mov [eax + %[p_feld]], cl;" // Store 'cl' in the corresponding array element
        "add cl, -1;"          // Decrement 'cl'
        "add eax, -1;"         // Move to the previous element
        "jge loop;"            // Jump back as long as 'cl' >= 0
        :
        : [p_feld] "r" (p_feld) // Update 'p_feld' as an output operand
        : "eax", "cl", "memory"   // Registers altered by the assembler
                                  // memory clobber tells compiler that memory it
                                  // isn't aware of is being accessed in the assembly
    );
#else
    printf("Assembler code will not be executed.\n");
#endif

    // Output the array to see if it contains the expected values
    for (i = 0; i < 5; i++) {
        printf("feld[%d] = %d\n", i, feld[i]);
    }

    return 0; // Successful program termination
}