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-rw-r--r--bootloader/mem.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/bootloader/mem.c b/bootloader/mem.c
new file mode 100644
index 0000000..3f6e564
--- /dev/null
+++ b/bootloader/mem.c
@@ -0,0 +1,69 @@
+/* $Id$ */
+/*
+ * Copyright (c) 2011 Dimitri Sokolyuk <demon@dim13.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include "bootloader.h"
+
+int
+transfer(int fd, FILE *dump, int ramend)
+{
+ int n;
+
+ put('D', fd);
+
+ printf("reading mem: ");
+
+ for (n = 0; n <= ramend; n++) {
+ twiddle();
+ fputc(get(fd), dump);
+ }
+ printf("\n");
+
+ return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ char *dev = "/dev/ttyU0";
+ int c, fd;
+ FILE *dump;
+
+ while ((c = getopt(argc, argv, "f:")) != -1)
+ switch (c) {
+ case 'f':
+ dev = strdup(optarg);
+ break;
+ default:
+ break;
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ dump = fopen("memdump", "w");
+ fd = open_tty(dev);
+ transfer(fd, dump, RAMEND);
+ close(fd);
+ fclose(dump);
+
+ return 0;
+}