init commit

2026-06-22 11:39:50 +03:00
commit ba6f1bde22
128 changed files with 17716 additions and 0 deletions
@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/times.h>
+#include "rs.h"
+
+main(){
+  char block[255];
+  int i;
+  void *rs;
+  struct tms start,finish;
+  double extime;
+  int trials = 10000;
+
+  for(i=0;i<223;i++)
+    block[i] = 0x01;
+
+  rs = init_rs_char(8,0x187,112,11,32,0);
+  encode_rs_char(rs,block,&block[223]);
+
+
+  times(&start);
+
+  for(i=0;i<trials;i++){
+#if 0
+    block[0] ^= 0xff; /* Introduce an error */
+    block[2] ^= 0xff; /* Introduce an error */
+#endif
+    decode_rs_char(rs,block,NULL,0);
+  }
+  times(&finish);
+  extime = ((double)(finish.tms_utime-start.tms_utime))/CLK_TCK;
+  printf("Execution time for %d Reed-Solomon blocks using general decoder: %.2f sec\n",trials,extime);
+  printf("decoder speed: %g bits/s\n",trials*223*8/extime);
+
+
+  encode_rs_8(block,&block[223],0);
+  times(&start);
+  for(i=0;i<trials;i++){
+#if 0
+    block[0] ^= 0xff; /* Introduce an error */
+    block[2] ^= 0xff; /* Introduce an error */
+#endif
+    decode_rs_8(block,NULL,0,0);
+  }
+  times(&finish);
+  extime = ((double)(finish.tms_utime-start.tms_utime))/CLK_TCK;
+  printf("Execution time for %d Reed-Solomon blocks using CCSDS decoder: %.2f sec\n",trials,extime);
+  printf("decoder speed: %g bits/s\n",trials*223*8/extime);
+
+  exit(0);
+}
+