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diff --git a/src/v65c02.h b/src/v65c02.h
old mode 100755
new mode 100644
index 7a557ab..9b71d46
--- a/src/v65c02.h
+++ b/src/v65c02.h
@@ -1,14 +1,14 @@
 //
 // Virtual 65C02 Header file
 //
-// by James L. Hammons
+// by James Hammons
 // (c) 2005 Underground Software
 //
 
 #ifndef __V65C02_H__
 #define __V65C02_H__
 
-#include "types.h"
+#include <stdint.h>
 
 // Useful defines
 
@@ -31,16 +31,18 @@
 
 struct V65C02REGS
 {
-	uint16 pc;						// 65C02 PC register
-	uint8 cc;						// 65C02 Condition Code register
-	uint8 sp;						// 65C02 System stack pointer (bound to $01xx)
-	uint8 a;						// 65C02 A register
-	uint8 x;						// 65C02 X index register
-	uint8 y;						// 65C02 Y register
-	uint32 clock;					// 65C02 clock (@ 1 MHz, wraps at 71.5 minutes)
-	uint8 (* RdMem)(uint16);		// Address of BYTE read routine
-	void (* WrMem)(uint16, uint8);	// Address of BYTE write routine
-	uint16 cpuFlags;				// v65C02 IRQ/RESET flags
+	uint16_t pc;						// 65C02 PC register
+	uint8_t cc;						// 65C02 Condition Code register
+	uint8_t sp;						// 65C02 System stack pointer (bound to $01xx)
+	uint8_t a;						// 65C02 A register
+	uint8_t x;						// 65C02 X index register
+	uint8_t y;						// 65C02 Y register
+//	uint32_t clock;					// 65C02 clock (@ 1 MHz, wraps at 71.5 minutes)
+	uint64_t clock;					// 65C02 clock (@ 1 MHz, wraps at 570842 years)
+	uint8_t (* RdMem)(uint16_t);		// Address of BYTE read routine
+	void (* WrMem)(uint16_t, uint8_t);	// Address of BYTE write routine
+	uint16_t cpuFlags;				// v65C02 IRQ/RESET flags
+	uint64_t overflow;				// # of cycles we went over last time through
 };
 
 // Global variables (exported)
@@ -49,7 +51,7 @@ extern bool dumpDis;
 
 // Function prototypes
 
-void Execute65C02(V65C02REGS *, uint32);    	// Function to execute 65C02 instructions
-uint32 GetCurrentV65C02Clock(void);				// Get the clock of the currently executing CPU
+void Execute65C02(V65C02REGS *, uint32_t);    	// Function to execute 65C02 instructions
+uint64_t GetCurrentV65C02Clock(void);				// Get the clock of the currently executing CPU
 
 #endif	// __V65C02_H__