diff --git a/examples/binary.modal b/examples/binary.modal
new file mode 100644
index 0000000..9a98afc
--- /dev/null
+++ b/examples/binary.modal
@@ -0,0 +1,5 @@
+?(?: ?:) \#48
+?(?: ?:) \101
+?(?: ?:) \#6c
+?(?: ?:) \108
+?(?: ?:) \#6f
\ No newline at end of file
diff --git a/makefile b/makefile
index afebb2f..a7e9458 100644
--- a/makefile
+++ b/makefile
@@ -10,7 +10,7 @@ dest:
 run: all bin/modal
 	@ bin/modal -q examples/hello.modal
 debug: all bin/modal-debug
-	@ bin/modal-debug -a examples/unicode.modal
+	@ bin/modal-debug -a examples/binary.modal
 test: all bin/modal-debug bin/modal
 	@ bin/modal -v
 	@ bin/modal-debug -q examples/fizzbuzz.modal
diff --git a/src/modal.c b/src/modal.c
index 91f31c3..e74ec10 100644
--- a/src/modal.c
+++ b/src/modal.c
@@ -21,14 +21,14 @@ copy(char *src, char *dst, int length)
 	return dst;
 }
 
-static int
-sint(char *s)
+int
+chex(char c)
 {
-	char c;
-	int r = 0, n = 1;
-	if(*s == '-') { n = -1, s++; }
-	while((c = *s++) && !spacer(c)) r = r * 10 + c - '0';
-	return r * n;
+	c -= 0x30;
+	if(c < 10) return c;
+	c -= 0x31;
+	if(c < 6) return 10 + c;
+	return 0;
 }
 
 static char *
@@ -47,6 +47,21 @@ walk(char *s)
 	return s;
 }
 
+static int
+sint(char *s)
+{
+	char c = *s, *cap = walk(s);
+	int r = 0, n = 1;
+	if(c == '#') {
+		s++;
+		while((c = *s) && s++ < cap) r = (r << 4) | chex(c);
+		return r;
+	}
+	if(c == '-') { n = -1, s++; }
+	while((c = *s) && s++ < cap) r = r * 10 + c - '0';
+	return r * n;
+}
+
 static void
 device_write(char *s)
 {
@@ -83,7 +98,9 @@ device_write(char *s)
 				case 't': putc(0x09, stdout); break;
 				case 'n': putc(0x0a, stdout); break;
 				case 's': putc(0x20, stdout); break;
+				default: putc(sint(--s), stdout), s = walk(s); 
 				}
+				
 			} else
 				putc(c, stdout);
 		}
@@ -314,7 +331,7 @@ main(int argc, char **argv)
 		return !printf("usage: modal [-vqn] source.modal\n");
 	for(i = 1; i < argc && *argv[i] == '-'; i++) {
 		switch(argv[i][1]) {
-		case 'v': /* version */ return !printf("Modal Interpreter, 10 May 2024.\n");
+		case 'v': /* version */ return !printf("Modal Interpreter, 13 May 2024.\n");
 		case 'q': /* quiet */ quiet = 1; break;
 		case 'p': /* debug */ debug = 1; break;
 		case 'a': /* access */ access = 1; break;