Please show me how to do the equivalent of https://github.com/stillwwater/raycaster/blob/master/src/boot.asm#L48-L50 https://github.com/stillwwater/raycaster/bl

Please show me how to do the equivalent of https://github.com/stillwwater/raycaster/blob/master/src/boot.asm#L48-L50 https://github.com/stillwwater/raycaster/blob/master/src/boo... in C. There are many examples that are impossible in C, I just picked an obvious one.