*: initial commit of stripped schism stuff

Forking schism tracker's IT playback stuff into a little playback
library for embedding in demos.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/sys/stdlib/memcmp.c b/src/sys/stdlib/memcmp.c
new file mode 100644
index 0000000..9178250
--- /dev/null
+++ b/src/sys/stdlib/memcmp.c
@@ -0,0 +1,12 @@
+#include <string.h> /* for size_t */
+int memcmp(const void *s1, const void *s2, size_t n);
+int memcmp(const void *s1, const void *s2, size_t n)
+{
+	register unsigned char *c1 = (unsigned char *) s1;
+	register unsigned char *c2 = (unsigned char *) s2;
+
+	while (n-- > 0)
+		if (*c1++ != *c2++)
+			return c1[-1] > c2[-1] ? 1 : -1;
+	return 0;
+}