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authorDimitri Sokolyuk <demon@dim13.org>2008-05-17 16:33:31 +0000
committerDimitri Sokolyuk <demon@dim13.org>2008-05-17 16:33:31 +0000
commitf57da717c82b46fe32dfdbe3c220a08e51c24f43 (patch)
tree8ebb9ade9fda741d968674ed332e7dfbd7f8a43e
seven-segment display
-rw-r--r--7seg.c76
-rw-r--r--Makefile6
2 files changed, 82 insertions, 0 deletions
diff --git a/7seg.c b/7seg.c
new file mode 100644
index 0000000..1339065
--- /dev/null
+++ b/7seg.c
@@ -0,0 +1,76 @@
+/* $Id$ */
+/*
+ * Copyright (c) 2005 Dimitri Sokolyuk <sokolyuk@gmail.com>
+ *
+ * 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 <stdio.h>
+
+/*
+ * _ a
+ * |_| bcd
+ * |_| efg
+ *
+ * ~abcdefg ~gfedcba
+ * 0 01101111 0x6F 01111011 0x7B
+ * 1 00001001 0x09 01001000 0x48
+ * 2 01011110 0x5E 00111101 0x3D
+ * 3 01011011 0x5B 01101101 0x6D
+ * 4 00111001 0x39 01001110 0x4E
+ * 5 01110011 0x73 01100111 0x67
+ * 6 01110111 0x77 01110111 0x77
+ * 7 01001001 0x49 01001001 0x49
+ * 8 01111111 0x7F 01111111 0x7F
+ * 9 01111011 0x7B 01101111 0x6F
+ *
+ */
+
+const char seg[] = {
+ 0x7B, 0x48, 0x3D, 0x6D, 0x4E,
+ 0x67, 0x77, 0x49, 0x7F, 0x6F
+};
+
+const char sym[] = "_|_||_|";
+
+int
+main(int argc, char **argv)
+{
+ int i, j;
+ char *c;
+
+ if ((c = argv[1]) == NULL)
+ return(-1);
+
+ for (i = 0; i < 3; i++) {
+ do {
+ if (*c < '0' || *c > '9')
+ continue;
+ if (i == 0)
+ putchar(' ');
+ for (j = 0; j < 3; j++) {
+ putchar(seg[*c - '0'] & 1 << i * i + j ?
+ sym[i * i + j] : ' ');
+ if (i == 0) {
+ putchar(' ');
+ break;
+ }
+ }
+ } while (*++c);
+ putchar('\n');
+ c = argv[1];
+ }
+ putchar('\n');
+
+ return(0);
+}
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..ef9d3ad
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+# $Id$
+
+PROG= 7seg
+NOMAN=
+
+.include <bsd.prog.mk>