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diff --git a/lib/isr44.ppu b/lib/isr44.ppu
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diff --git a/lib/libpconsole.a b/lib/libpconsole.a
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diff --git a/lib/libpmultiboot.a b/lib/libpmultiboot.a
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diff --git a/lib/terminal.ppu b/lib/terminal.ppu
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diff --git a/src/strings.pas b/src/strings.pas
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index 00000000..c1cf3db6
--- /dev/null
+++ b/src/strings.pas
@@ -0,0 +1,92 @@
+unit strings;
+
+interface
+
+uses
+    system,
+    util;
+
+function stringToUpper(str : pchar) : pchar;
+function stringToLower(str : pchar) : pchar;
+function stringEquals(str1, str2 : pchar) : boolean;
+function stringCopy(str : pchar) : pchar;
+function stringNew(size : uint32) : pchar;
+function stringSize(str : pchar) : uint32;
+function stringConcat(str1, str2 : pchar) : pchar;
+function stringContains(str : pchar; sub : pchar) : boolean;
+
+implementation
+
+function stringToUpper(str : pchar) : pchar;
+begin
+    
+end;
+
+function stringToLower(str : pchar) : pchar;
+begin
+    
+end;
+
+function stringEquals(str1, str2 : pchar) : boolean;
+var
+    i : uint32;
+
+begin
+    stringEquals:= true;
+    if stringSize(str1) <> stringSize(str2) then begin
+        stringEquals:= false;
+        exit;
+    end else begin
+        for i:=0 to stringSize(str1)-1 do begin
+            if str1[i] <> str2[i] then begin
+                stringEquals:= false;
+                exit;
+            end;
+        end; 
+    end;   
+end;
+
+function stringCopy(str : pchar) : pchar;
+var
+    result : pchar;
+    size   : uint32;
+
+begin
+    size:= stringSize(str);
+    result:= stringNew(size);
+    memcpy(str, result, size);    
+end;
+
+function stringNew(size : uint32) : pchar;
+var
+    result : pchar;
+
+begin
+    result:= pchar(kalloc(size + 1));
+    memset(uint32(result), 0, size + 1);
+    stringNew:= result;
+end;
+
+function stringSize(str : pchar) : uint32;
+var
+    i : uint32;
+
+begin
+    i:=0;
+    while byte(str[i]) <> 0 do begin
+        inc(i);
+    end; 
+    stringSize:=i;
+end;
+
+function stringConcat(str1, str2 : pchar) : pchar;
+begin
+    
+end;
+
+function stringContains(str : pchar; sub : pchar) : boolean;
+begin
+    
+end;
+
+end.
\ No newline at end of file