Index: misc/proto.c
===================================================================
--- misc/proto.c	(revision 6a37d5b75a66b9b08989170e2619867e2219e59d)
+++ misc/proto.c	(revision ea232f984b55590cfb594e0c01ab8b3601ca2d89)
@@ -160,5 +160,5 @@
 }
 
-void _ptcl12(uint16_t *fat, uint16_t cl, uint16_t val)
+void _ptcl12(uint8_t *fat, int16_t cl, int16_t val)
 {
 }
Index: misc/proto.x
===================================================================
--- misc/proto.x	(revision 6a37d5b75a66b9b08989170e2619867e2219e59d)
+++ misc/proto.x	(revision ea232f984b55590cfb594e0c01ab8b3601ca2d89)
@@ -58,5 +58,5 @@
 extern	void		Lo_RAM(void);
 extern	void		VIint(void);
-extern	void		_ptcl12(uint16_t *fat, uint16_t cl, uint16_t val);
+extern	void		_ptcl12(uint8_t *fat, int16_t cl, int16_t val);
 extern	void		clrvce(int16_t vce);
 extern	void		execins(int16_t vce, int16_t ins, int16_t tag);