如何编写SWAR比较，将0xFF放在匹配的通道中？

#include <stdint.h>

// SWAR比较函数
uint32_t swar_compare(uint32_t x, uint32_t y) {
    // 将0xFF复制到每个字节位置
    uint32_t mask = 0xFF;
    uint32_t x_channel = x & mask;
    uint32_t y_channel = y & mask;

    // 进行比较操作
    uint32_t result = (x_channel == y_channel);

    return result;
}

int main() {
    uint32_t x = 0xAABBCCDD;
    uint32_t y = 0xFFBBCCDD;

    uint32_t comparison_result = swar_compare(x, y);
    
    // 输出比较结果
    printf("Comparison result: %u\n", comparison_result);

    return 0;
}