diff --git a/bin/c2d.exe b/bin/c2d.exe
deleted file mode 100755
index 833556e..0000000
Binary files a/bin/c2d.exe and /dev/null differ
diff --git a/bin/page2text.exe b/bin/page2text.exe
deleted file mode 100755
index 0e3595e..0000000
Binary files a/bin/page2text.exe and /dev/null differ
diff --git a/bin/text2page.exe b/bin/text2page.exe
deleted file mode 100755
index 07a6192..0000000
Binary files a/bin/text2page.exe and /dev/null differ
diff --git a/page2text.c b/page2text.c
index 584ff6d..8056cd5 100644
--- a/page2text.c
+++ b/page2text.c
@@ -1,8 +1,10 @@
 #include <stdio.h>
 
+#define MASK 0x7F
+
 int main()
 {
-	int i, j, k, line, mask = 0x7F;
+	int i, j, k, line;
 	char screen[24][40];
 
 	// clear screen (just in case partial dump)
@@ -13,7 +15,7 @@ int main()
 	for (i = 0; i < 24; i++) {
 		line = 8 * (i % 3) + i / 3;
 		for (j = 0; j < 40; j++)
-			screen[line][j] = getchar() & mask;
+			screen[line][j] = getchar() & MASK;
 		if (i % 3 == 2)
 			for (k = 0; k < 8; k++)
 				getchar();
diff --git a/text2page.c b/text2page.c
index b6f439e..5252ecf 100644
--- a/text2page.c
+++ b/text2page.c
@@ -11,16 +11,19 @@ unsigned char holes[] = {
 	0xc6, 0xff, 0x00, 0x07, 0xff, 0xff, 0x00, 0x00
 };
 
+#define NORMAL 0x80
+#define BLINK 0x40
+
 int main()
 {
-	char c, highbit = 0x80;
+	char c;
 	int i, j, k, line = 0;
 	unsigned char screen[24][40];
 
 	// clear screen (just in case < 40x24)
 	for (i = 0; i < 24; i++)
 		for (j = 0; j < 40; j++)
-			screen[i][j] = ' ' | highbit;
+			screen[i][j] = ' ' | NORMAL;
 
 	i = j = 0;
 	while ((c = getchar()) != EOF) {
@@ -37,7 +40,7 @@ int main()
 		if (i > 23)				// ditto
 			break;
 
-		screen[line][j++] = c | highbit;
+		screen[line][j++] = c | NORMAL;
 	}
 
 	// dump to stdout