This once again does NOT compile. I've done work on macros; they don't work yet..

unit-tests/bignum-print.sh

@@ -0,0 +1,104 @@
+#!/bin/bash
+
+return=0
+
+#####################################################################
+# large number, not actally a bignum
+expected='576460752303423488'
+output=`echo "(progn (print $expected) nil)" | target/psse -v 2 2>psse.log`
+
+actual=`echo $output |\
+  sed 's/\,//g' |\
+  sed 's/[^0-9]*\([0-9]*\).*/\1/'`
+
+echo -n "$0 => printing $expected: "
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '${expected}', got '${actual}'"
+    return=1
+fi
+
+
+#####################################################################
+# right on the boundary
+expected='1152921504606846976'
+output=`echo "(progn (print $expected) nil)" | target/psse -v 2 2>psse.log`
+
+actual=`echo $output |\
+  sed 's/\,//g' |\
+  sed 's/[^0-9]*\([0-9]*\).*/\1/'`
+
+echo -n "$0 => printing $expected: "
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '${expected}', got '${actual}'"
+    return=1
+fi
+
+
+#####################################################################
+# definitely a bignum
+expected='1152921504606846977'
+output=`echo "(progn (print $expected) nil)" | target/psse -v 2 2>psse.log`
+
+actual=`echo $output |\
+  sed 's/\,//g' |\
+  sed 's/[^0-9]*\([0-9]*\).*/\1/'`
+
+echo -n "$0 => printing $expected: "
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '${expected}', got '${actual}'"
+    return=1
+fi
+
+
+# Currently failing from here on, but it's failing in read because of
+# the multiply bug. We know printing blows up at the 3 cell boundary
+# because `lisp/scratchpad2.lisp` constructs a 3 cell bignum by
+# repeated addition.
+#####################################################################
+# Just on the three cell boundary
+expected='1329227995784915872903807060280344576'
+output=`echo "(progn (print $expected) nil)" | target/psse -v 2 2>psse.log`
+
+actual=`echo $output |\
+  sed 's/\,//g' |\
+  sed 's/[^0-9]*\([0-9]*\).*/\1/'`
+
+echo -n "$0 => printing $expected: "
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '${expected}', \n           got '${actual}'"
+    return=1
+fi
+
+exit 0
+
+#####################################################################
+# definitely a three cell bignum
+expected='1329227995784915872903807060280344577'
+output=`echo "(progn (print $expected) nil)" | target/psse -v 2 2>psse.log`
+
+actual=`echo $output |\
+  sed 's/\,//g' |\
+  sed 's/[^0-9]*\([0-9]*\).*/\1/'`
+
+echo -n "$0 => printing $expected: "
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '${expected}', got '${actual}'"
+    return=1
+fi
+
+exit ${return}