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diff --git a/src/v6809.h b/src/v6809.h
old mode 100755
new mode 100644
index f62d1cf..39fc3f8
--- a/src/v6809.h
+++ b/src/v6809.h
@@ -3,7 +3,7 @@
 //
 // by James L. Hammons
 //
-// (c) 1997, 2004 Underground Software
+// (C) 1997, 2004 Underground Software
 //
 
 #ifndef __V6809_H__
@@ -35,24 +35,29 @@
 
 struct V6809REGS
 {
-	WORD pc;					// 6809 PC register
-	WORD x;						// 6809 X index register
-	WORD y;						// 6809 Y index register
-	WORD s;						// 6809 System stack pointer
-	WORD u;						// 6809 User stack pointer
-	BYTE cc;					// 6809 Condition Code register
-	BYTE a;						// 6809 A register
-	BYTE b;						// 6809 B register
-	BYTE dp;					// 6809 Direct Page register
-	DWORD clock;				// 6809 clock
-//DWORD _reserved;//	BYTE (* Fetch)(WORD&);		// Address of BYTE fetch routine
-	BYTE (* RdMem)(WORD);		// Address of BYTE read routine
-	void (* WrMem)(WORD, BYTE);	// Address of BYTE write routine
-	DWORD cpuFlags;				// v6809 IRQ/RESET flags
+	uint16 pc;						// 6809 PC register
+	uint16 x;						// 6809 X index register
+	uint16 y;						// 6809 Y index register
+	uint16 s;						// 6809 System stack pointer
+	uint16 u;						// 6809 User stack pointer
+	uint8 cc;						// 6809 Condition Code register
+	uint8 a;						// 6809 A register
+	uint8 b;						// 6809 B register
+	uint8 dp;						// 6809 Direct Page register
+//	uint32 clock;					// 6809 clock (@ 1 MHz, wraps at 71.5 minutes)
+	uint64 clock;					// 6809 clock (@ 1 MHz, wraps at 570842 years)
+	uint8 (* RdMem)(uint16);		// Address of uint8 read routine
+	void (* WrMem)(uint16, uint8);	// Address of uint8 write routine
+	uint32 cpuFlags;				// v6809 IRQ/RESET flags
+	uint32 clockOverrun;
 };
 
 // Function prototypes
 
-void Execute6809(V6809REGS *, DWORD);					// Function to execute 6809 instructions
+void Execute6809(V6809REGS *, uint32);			// Function to execute 6809 instructions
+uint64 GetCurrentV6809Clock(void);				// Get the clock of the currently executing CPU
+uint16 GetCurrentV6809PC(void);					// Get the PC of the currently executing CPU
+void SetLineOfCurrentV6809(uint32 line);		// Set a line of the currently executing CPU
+void ClearLineOfCurrentV6809(uint32 line);		// Clear a line of the currently executing CPU
 
 #endif	// __V6809_H__