Fix for windows-specific syscall

music/tracked/mod/util.go

@@ -1,12 +1,10 @@
 package mod
 
-import "syscall"
-
 // WordLength is a count of WORD (uint16) sized values, stored in BigEndian format
 type WordLength uint16
 
 // Value returns the actual length described by this WordLength
 func (m WordLength) Value() int {
-	v := syscall.Ntohs(uint16(m))
+	v := BE16ToLE16(uint16(m))
 	return int(v) << 1
 }

music/tracked/mod/util_linux.go

@@ -0,0 +1,8 @@
+// +build linux
+
+package mod
+
+// BE16ToLE16 converts a big-endian uint16 to a little-endian uint16
+func BE16ToLE16(be uint16) uint16 {
+	return uint16(be>>8) | (be << 8)
+}

music/tracked/mod/util_win.go

@@ -0,0 +1,10 @@
+// +build windows
+
+package mod
+
+import "syscall"
+
+// BE16ToLE16 converts a big-endian uint16 to a little-endian uint16
+func BE16ToLE16(be uint16) uint16 {
+	return syscall.Ntohs(be)
+}