test program for C implementation of timer_seconds

Makefile changes are missing.

test/clk_timer.c

@@ -0,0 +1,34 @@
+/* test for timer_seconds function */
+
+#include <stdio.h>
+#include <conio.h>
+
+extern void timer_init(void);
+extern unsigned int timer_seconds(void);
+
+static int done;
+
+int main(void)
+{
+  unsigned char sec, sec2, c;
+  unsigned int x;
+
+  timer_init();
+  printf("Hit <SPACE> to exit...\n");
+  sec = timer_seconds();
+  printf("%02x\n", sec);
+  while (!done) {
+    x = timer_seconds();
+    sec2 = x & 255;
+    if (sec != sec2) {
+      sec = sec2;
+      printf("%02x\n", sec);
+    }
+    if (kbhit()) {
+      c = cgetc();
+      if (c == ' ')
+        done = 1;
+    }
+  }
+  return 0;
+}

test/clk_timer_helper.s

@@ -0,0 +1,9 @@
+; helper object file to export clr_timer ASM symbols to C
+
+.import timer_init, timer_seconds
+.export _timer_init, _timer_seconds
+
+_timer_init = timer_init
+_timer_seconds = timer_seconds
+
+.end