update name of code to labcodes

labcodes/lab8/user/testbss.c

@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <ulib.h>
+
+#define ARRAYSIZE (1024*1024)
+
+uint32_t bigarray[ARRAYSIZE];
+
+int
+main(void) {
+    cprintf("Making sure bss works right...\n");
+    int i;
+    for (i = 0; i < ARRAYSIZE; i ++) {
+        if (bigarray[i] != 0) {
+            panic("bigarray[%d] isn't cleared!\n", i);
+        }
+    }
+    for (i = 0; i < ARRAYSIZE; i ++) {
+        bigarray[i] = i;
+    }
+    for (i = 0; i < ARRAYSIZE; i ++) {
+        if (bigarray[i] != i) {
+            panic("bigarray[%d] didn't hold its value!\n", i);
+        }
+    }
+
+    cprintf("Yes, good.  Now doing a wild write off the end...\n");
+    cprintf("testbss may pass.\n");
+
+    bigarray[ARRAYSIZE + 1024] = 0;
+    asm volatile ("int $0x14");
+    panic("FAIL: T.T\n");
+}
+