From ef176e8f2d80fbdebb3b6e00005dd873fc2c4233 Mon Sep 17 00:00:00 2001
From: yves <steve.harrison@gmx.net>
Date: Tue, 24 May 2011 14:20:13 +0200
Subject: put yves asm in

---
 cacheRows.c | 20 ++++++++++----------
 inlineasm.h |  9 ++++++---
 2 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/cacheRows.c b/cacheRows.c
index c75be89..0111018 100644
--- a/cacheRows.c
+++ b/cacheRows.c
@@ -2,21 +2,24 @@
 #include "inlineasm.h"
 #include <stdlib.h>
 
-#define MEASURE_METHOD optmemmeasure
-#define RUNS 10000
+#define MEASURE_METHOD memmeasure
 #define MIN_OFFSET 1
-#define MAX_OFFSET 512
+#define MAX_OFFSET 4096
 #define OFFSETS (MAX_OFFSET - MIN_OFFSET)
 #define FIELD_TYPE uint8_t
 
 void measure(int offset,FIELD_TYPE *field){
+    uint64_t *res = malloc(sizeof(uint64_t)*MAX_OFFSET);
     void *lowerAddress =  field + offset;
 	int i;
+    int a = field[0];
+
+    for(i=MAX_OFFSET;i >= MIN_OFFSET;i--){
+        res[i] = MEASURE_METHOD(lowerAddress,res[i]*sizeof(FIELD_TYPE));
+    }
 
     for(i=MIN_OFFSET;i <= MAX_OFFSET;i++){
-        uint64_t time = MEASURE_METHOD(lowerAddress,i*sizeof(FIELD_TYPE));
-        //if (time > 128 && time < 10000)
-			fprintf(stdout,"%d %lld \r\n",i,time);
+        fprintf(stdout,"%d %lld \r\n",i,res[i]);
     }
 }
 
@@ -26,10 +29,7 @@ int main(int argc, char* argv[]) {
     FIELD_TYPE *field = malloc(sizeof(FIELD_TYPE)*(MAX_OFFSET+1));
     int i=0;
 
-    //for(i=0;i < RUNS;i++){
-	//fprintf(stdout,"RUN: %d \r\n",i);
-        measure(0,field);
-    //}
+    measure(0,field);
 
 
     return 0;
diff --git a/inlineasm.h b/inlineasm.h
index fc048ca..218c532 100644
--- a/inlineasm.h
+++ b/inlineasm.h
@@ -38,14 +38,17 @@ static uint64_t rdtsc()
 static uint64_t memmeasure(char* memory, uint64_t offset)
 {
     asm(
+
+        // here be magic dragons and memory access (read segfaults) ahead
+        // TODO: evaluate if more cmp types (like w and l) do make sense
+        "cmpb $0x23, (%%rbx) ;"
+
+        // get starting time
         "rdtsc ;"
         "shl $32, %%rdx ;"
         "add %%rax, %%rdx ;"
         "mov %%rdx, %%rdi ;"
 
-        // here be magic dragons and memory access (read segfaults) ahead
-        // TODO: evaluate if more cmp types (like w and l) do make sense
-        "cmpb $0x23, (%%rbx) ;"
         "cmpb $0x42, (%%rbx,%%rcx) ;"
 
         "rdtsc ;"
-- 
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