系统级程序设计——cache命中率

最新推荐文章于 2024-02-29 15:19:06 发布

不要清汤锅

最新推荐文章于 2024-02-29 15:19:06 发布

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分类专栏：系统级程序设计实验

本文链接：https://blog.youkuaiyun.com/hello_program_world/article/details/80632975

#include <stdio.h>
#include <stdlib.h>
#include "defs.h"
#include "cache.h"


/* Here is an our naive implementation */
char rotate_descr[] = "Naive Row-wise Traversal of src";
void rotate(int dim, pixel *src, pixel *dst) {
	int i, j;

	for(i=0; i < dim; i++) {
		for(j=0; j < dim; j++) {
			COPY(&dst[PIXEL(dim-1-j,i,dim)], &src[PIXEL(i,j,dim)]);
		}
	}

	return;
}
char rotateTest_descr[] = "SMOOTH: Naive Row-wise Traversal of src";
void rotateTest(int dim, pixel *src, pixel *dst) {
    int i, j, ii = 0, jj = 0, blocksize = 16;
    for (ii = 0; ii<dim; ii += blocksize) {
        for (jj = 0; jj<dim; jj += blocksize) {
            for (i = ii; i<ii + blocksize; i++) {
                for (j = jj; j<jj + blocksize; j++) {
                    COPY(&dst[PIXEL((dim - 1 - j), i, dim)], &src[PIXEL(i, j, dim)]);
                }
            }
        }
    }
    return;
}

/* Add additional functions to test here */