1 files changed, 88 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/memdisk/e820test.c b/contrib/syslinux-4.02/memdisk/e820test.c
new file mode 100644
index 0000000..0bd6c4c
--- /dev/null
+++ b/contrib/syslinux-4.02/memdisk/e820test.c
@@ -0,0 +1,88 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
+ *   (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * e820hack.c
+ *
+ * Test of INT 15:E820 canonicalization/manipulation routine
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include "e820.h"
+
+void *sys_bounce;		/* Dummy */
+
+extern void parse_mem(void);
+extern uint32_t dos_mem, low_mem, high_mem;
+
+void __attribute__ ((noreturn)) die(void)
+{
+    abort();
+}
+
+void printranges(void)
+{
+    int i;
+
+    for (i = 0; i < nranges; i++) {
+	printf("%016llx %016llx %d\n",
+	       ranges[i].start,
+	       ranges[i + 1].start - ranges[i].start, ranges[i].type);
+    }
+}
+
+int main(void)
+{
+    uint64_t start, len;
+    uint32_t type;
+    char line[BUFSIZ], *p;
+
+    e820map_init();
+    printranges();
+
+    while (fgets(line, BUFSIZ, stdin)) {
+	p = strchr(line, ':');
+	p = p ? p + 1 : line;
+	if (sscanf(p, " %llx %llx %d", &start, &len, &type) == 3) {
+	    putchar('\n');
+	    printf("%016llx %016llx %d <-\n", start, len, type);
+	    putchar('\n');
+	    insertrange(start, len, type);
+	    printranges();
+	}
+    }
+
+    parse_mem();
+
+    putchar('\n');
+    printf("DOS  mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
+    printf("Low  mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
+    printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
+    putchar('\n');
+
+    /* Now, steal a chunk (2K) of DOS memory and make sure it registered OK */
+    insertrange(dos_mem - 2048, 2048, 2, 1);	/* Type 2 = reserved */
+
+    printranges();
+    parse_mem();
+
+    putchar('\n');
+    printf("DOS  mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
+    printf("Low  mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
+    printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
+    putchar('\n');
+
+    return 0;
+}