#include "stdio.h"
#define BITMASK(b7, b6, b5, b4, b3, b2, b1, b0) \
b7 << 7 | b6 << 6 | b5 << 5 | b4 << 4 | \
b3 << 3 | b2 << 2 | b1 << 1 | b0 << 0
int main() {
char a = BITMASK(0, 0, 1, 1, 0, 0, 0, 1);
printf("%x", a);
return 0;
}
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