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Visual Studio optimisations break SDL graphical output


Visual Studio optimisations break SDL graphical output

By : user3099717
Date : January 11 2021, 03:34 PM
like below fixes the issue I'm not sure of the exact problem, but...
When the compiler sees something like this:
code :
int loopDisplay(void) {
    while (running) {
        if (chip8.drawFlag) {
            UpdateDisplay();              // Update Display
            chip8.drawFlag = false;       // Reset Draw Flag
        }
    }
    return 0;
}
int loopDisplay(void) {
    temp = chip8.drawFlag;
    while (running) {
        if (temp) {
            UpdateDisplay();              // Update Display
            temp = false;                 // Reset Draw Flag
        }
    }
    chip8.drawFlag = temp;
    return 0;
}
int loopDisplay(void) {
    temp = chip8.drawFlag;
    if(running && temp) 
         UpdateDisplay();              // Update Display
        }
    }
    while(running) {}
    chip8.drawFlag = false;
    return 0;
}


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