From d8d4f48375bdef25d0bf445796eca300e47c9a07 Mon Sep 17 00:00:00 2001
From: Robin Nehls <nehls@mi.fu-berlin.de>
Date: Sat, 21 May 2011 17:07:28 +0200
Subject: added cmd line options (recompiling suxx)

---
 cacheRows2.c | 58 +++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 35 insertions(+), 23 deletions(-)

diff --git a/cacheRows2.c b/cacheRows2.c
index e6295f6..d10c3bb 100644
--- a/cacheRows2.c
+++ b/cacheRows2.c
@@ -2,37 +2,49 @@
 #include <stdlib.h>
 #include "inlineasm.h"
 
-#define FIELD_SIZE 5000
-#define MIN_TIME 120
-#define MAX_TIME 1000
-
-int main(int argc, char* argv[]) 
-{	
-    char *field1 = malloc(FIELD_SIZE);
-    char *field2 = malloc(FIELD_SIZE);
+int main(int argc, char* argv[])
+{
+    if (argc != 5) {
+        printf("Usage: %s <fieldsize> <minticks> <maxticks> <outputfile>\n",argv[0]);
+        return 1;
+    }
+    
+    unsigned long i,j,time,fieldsize,minticks,maxticks;
+    
+    sscanf(argv[1],"%lu",&fieldsize);
+    sscanf(argv[2],"%lu",&minticks);
+    sscanf(argv[3],"%lu",&maxticks);
+     
+    char *field1 = malloc(fieldsize);
+    char *field2 = malloc(fieldsize);
     char *current = field1;
-    unsigned long i,j;
-	unsigned long time=0;
-    FILE *f=stdout;
+    FILE *f;
+
+    if (argv[4][0] == '-') {
+        f=stdout;
+    }
+    else {
+        f=fopen(argv[4],"w");
+    }
 
-	// fill arrays with crap
-	for (i=0;i < FIELD_SIZE; ++i) {
-		field1[i]=(i+2342) % 255;
+    // fill arrays with crap
+    for (i=0;i < fieldsize; ++i) {
+        field1[i]=(i+2342) % 255;
         field2[i]=(i+4223) % 255;
-	}
-	
+    }
+
     // print table reader
     if (argc == 1) {
         f=fopen("output.dat","w");
         fprintf(f,"Offset Ticks\n");
     }
 
-    for(i=0; i<FIELD_SIZE; ++i) {
-		time=memmeasure(current,i);
-		if (time < MAX_TIME && time > MIN_TIME )
+    for(i=0; i<fieldsize; ++i) {
+        time=memmeasure(current,i);
+        if (time < maxticks && time > minticks )
             fprintf(f,"%lu %lu\n",i,time);
 
-		// scrambeled eggs
+        // scrambeled eggs
         if (current == field1) {
             current = field2;
         }
@@ -40,9 +52,9 @@ int main(int argc, char* argv[])
             current = field1;
         }
 
-	}
+    }
     fclose(f);
-	
-	return 0;
+
+    return 0;
 }
 
-- 
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