From c34cd59be89fb26e63fe959b98afabb4f24ba5bd Mon Sep 17 00:00:00 2001
From: Rasmus Luha <rasmus.luha@gmail.com>
Date: Wed, 21 Sep 2022 14:16:01 +0300
Subject: init commit

---
 src/mem.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/mem.c

(limited to 'src/mem.c')

diff --git a/src/mem.c b/src/mem.c
new file mode 100644
index 0000000..3c605a5
--- /dev/null
+++ b/src/mem.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include "mem.h"
+
+struct mem_st mem = { .pos = 0};
+
+int mem_inc(){
+    mem.arr[mem.pos]++;
+	return mem.arr[mem.pos];
+}
+
+int mem_dec(){
+    mem.arr[mem.pos]--;
+	return mem.arr[mem.pos];
+}
+
+int mem_left(){
+   if (mem.pos <= 0) {
+       mem.pos = MEM_SIZE-1;
+   } 
+   else {
+       mem.pos--;
+   }
+   return mem.pos;
+}
+
+int mem_right(){
+   if (mem.pos >= MEM_SIZE-1) {
+       mem.pos = 0;
+   } 
+   else {
+       mem.pos++;
+   }
+   return mem.pos;
+
+}
+
+int mem_get(){
+    return mem.arr[mem.pos];
+}
+
+int mem_set(char v){
+    mem.arr[mem.pos] = v;
+    return v;
+}
+
+void mem_printDebug(){
+    if (mem.pos+9 >= MEM_SIZE)
+        printf("index: %d [%d .. %d]: ", mem.pos, mem.pos, mem.pos-MEM_SIZE+9);
+    printf("index: %d [%d .. %d]: ", mem.pos, mem.pos, mem.pos+9);
+
+    for (int i = 0; i < 10; ++i) {
+        if (mem.pos+i >= MEM_SIZE) {
+            printf("%d ", mem.arr[mem.pos-MEM_SIZE+i]); 
+        }
+        else {
+            printf("%d ", mem.arr[mem.pos+i]);
+        }
+    }
+
+}
-- 
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