--- np2/cbus/cs4231io.h	2003/10/16 17:58:01	1.1
+++ np2/cbus/cs4231io.h	2003/12/08 00:55:30	1.2
@@ -7,8 +7,8 @@ extern "C" {
 void cs4231io_reset(void);
 void cs4231io_bind(void);
 
-void IOOUTCALL cs4231io_w8(UINT port, BYTE value);
-BYTE IOINPCALL cs4231io_r8(UINT port);
+void IOOUTCALL cs4231io_w8(UINT port, REG8 value);
+REG8 IOINPCALL cs4231io_r8(UINT port);
 
 #ifdef __cplusplus
 }