diff --git a/test/testslib.c02 b/test/testslib.c02
new file mode 100644
index 0000000..c5d8f0e
--- /dev/null
+++ b/test/testslib.c02
@@ -0,0 +1,132 @@
+/*********************************
+ * TESTSLIB - Test Module stdlib *
+ *********************************/
+ 
+//Specify System Header using -H option
+#include <stddef.h02>
+#include <stdlib.h02>
+
+void prtcma() {putchr(',');}
+void prtlin() {putstr(); newlin();}
+void prtok()  {prtlin(" ok");}
+
+main:  
+
+tstabs: 
+  char onum, anum, cnum;
+  putstr("ABS()");
+  onum = 0;
+aploop: 
+  anum = abs(onum);
+  if (onum <> anum) goto abserr;
+  onum++;
+  if (onum < $80) goto aploop;
+anloop:
+  anum = abs(onum);
+  cnum = -onum;
+  if (anum <> cnum) goto abserr;
+  onum++; 
+  if (onum > $00) goto anloop;
+  prtok();
+
+tstmlt:
+  char mltplr, mltpnd, acmlsb, acmmsb, acmlst, prodct, ovrflw;
+  putstr("MULT()");
+  mltplr = 1;
+mrloop: 
+  mltpnd = 1; acmlst = 0; acmlsb = 0; acmmsb = 0;
+mdloop: 
+  acmlsb = acmlsb + mltplr;
+  if (acmlsb < acmlst) acmmsb++;
+  acmlst = acmlsb;
+  prodct,ovrflw = mult(mltplr,mltpnd);
+  if (prodct <> acmlsb) goto merror; 
+  mltpnd++; if (mltpnd > 0) goto mdloop;
+  mltplr++; if (mltplr > 0) goto mrloop;
+  prtok();
+
+tstdiv:
+  char maxmpd, divdnd, divisr, quotnt;
+  putstr("DIV()");
+  mltplr = 255; maxmpd = 1;
+drloop: 
+mltpnd = 1; acmlsb = 0;
+ddloop: 
+  acmlsb = acmlsb + mltplr;
+  prodct = mult(mltplr, mltpnd);
+  quotnt = div(prodct, mltpnd);
+  if (quotnt <> mltplr) goto derror;
+  mltpnd++; if (mltpnd < maxmpd) goto ddloop;
+  mltplr>>; maxmpd<<; if (mltplr <> 0) goto drloop;
+  prtok();
+
+tstrnd:
+  char countr, rndnum, rndtbl[255];
+  putstr("RAND()");
+  rands(1); countr = 0;
+riloop:
+  rndtbl[countr] = 0;
+  countr++; if (countr <> 0) goto riloop;
+rnloop:
+  rndnum = rand(); if (rndtbl[rndnum] > 0) goto rnderr;
+  rndtbl[rndnum] = $FF; 
+  countr++; if (countr < 255) goto rnloop;
+  prtok();
+
+tstcvb:
+  char cvbchr, cvblo, cvbhi;
+  putstr("CVBCD()"); 
+  cvbchr = 0; cvblo = 0; cvbhi = 0;
+cvloop: 
+  cvbcd(cvbchr); if (temp1 <> cvblo or temp2 <> cvbhi) goto cvberr;
+  cvblo++; 
+  if (cvblo & $0F > 9) {
+    cvblo = cvblo & $F0 + $10;
+    if (cvblo >= $A0) {cvblo = cvblo & $0F; cvbhi++;} 
+  }
+  cvbchr++; if (cvbchr) goto cvloop; 
+  prtok();
+
+tstc2a:
+  char srcchr, dstchr, tststr[4];
+  putstr("CTOA()"); 
+  srcchr = 0;
+caloop: 
+  ctoa(srcchr, &tststr);
+  dstchr = atoc(&tststr);
+  if (srcchr <> dstchr) goto c2aerr;
+  srcchr++; if (srcchr <> 0) goto caloop;
+  prtok();
+
+  goto exit;
+
+abserr: 
+  putstr("abs("); prbyte(onum); putchr(')'); putchr('=');
+  prbyte(anum); putchr(','); prbyte(cnum); newlin();
+  goto exit;
+
+merror: 
+  newlin();
+  prbyte(mltplr); putchr('*'); prbyte(mltpnd); putchr('=');
+  prbyte(prodct); putchr(','); prbyte(acmlsb); newlin();
+  goto exit;
+
+derror: 
+  newlin();
+  prbyte(divdnd); putchr('/'); prbyte(divisr); putchr('=');
+  prbyte(quotnt); putchr(','); prbyte(mltplr); newlin();
+  goto exit;
+
+rnderr: 
+  putstr("rand()="); prbyte(rndnum); putchr(','); prbyte(countr); newlin();
+  goto exit;
+
+cvberr: 
+  putstr(" !cvbcd("); prbyte(cvbchr); putstr(")=$");
+  prbyte(temp2); prbyte(temp1); newlin();
+  goto exit;
+
+c2aerr: 
+  putstr(" !ctoa("); prbyte(srcchr); putstr(")=");
+  prbyte(dstchr); newlin();
+  goto exit;