//
// Virtual 6809 Header file
//
-// by James L. Hammons
+// by James Hammons
//
-// (C) 1997, 2004 Underground Software
+// (C) 1997, 2014 Underground Software
//
#ifndef __V6809_H__
#define __V6809_H__
-#include "types.h"
+#include <stdint.h>
// Useful defines
-#define FLAG_E 0x80 // Entire
-#define FLAG_F 0x40 // Fast IRQ
-#define FLAG_H 0x20 // Half carry
-#define FLAG_I 0x10 // IRQ
-#define FLAG_N 0x08 // Negative
-#define FLAG_Z 0x04 // Zero
-#define FLAG_V 0x02 // oVerflow
-#define FLAG_C 0x01 // Carry
+#define FLAG_E 0x80 // Entire
+#define FLAG_F 0x40 // Fast IRQ
+#define FLAG_H 0x20 // Half carry
+#define FLAG_I 0x10 // IRQ
+#define FLAG_N 0x08 // Negative
+#define FLAG_Z 0x04 // Zero
+#define FLAG_V 0x02 // oVerflow
+#define FLAG_C 0x01 // Carry
#define V6809_ASSERT_LINE_RESET 0x0001 // v6809 RESET line
#define V6809_ASSERT_LINE_IRQ 0x0002 // v6809 IRQ line
#define V6809_ASSERT_LINE_NMI 0x0008 // v6809 NMI line
#define V6809_STATE_SYNC 0x0010 // v6809 SYNC line
#define V6809_STATE_ILLEGAL_INST 0x0020 // Illegal instruction executed flag
-
//#define V6809_START_DEBUG_LOG EQU 0020h // Debug log go (temporary!)
// Useful structs
struct V6809REGS
{
- 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;
+ uint16_t pc; // 6809 PC register
+ uint16_t x; // 6809 X index register
+ uint16_t y; // 6809 Y index register
+ uint16_t s; // 6809 System stack pointer
+ uint16_t u; // 6809 User stack pointer
+ uint8_t cc; // 6809 Condition Code register
+ uint8_t a; // 6809 A register
+ uint8_t b; // 6809 B register
+ uint8_t dp; // 6809 Direct Page register
+// uint32_t clock; // 6809 clock (@ 1 MHz, wraps at 71.5 minutes)
+ uint64_t clock; // 6809 clock (@ 1 MHz, wraps at 570842 years)
+ uint8_t (* RdMem)(uint16_t); // Address of uint8_t read routine
+ void (* WrMem)(uint16_t, uint8_t); // Address of uint8_t write routine
+ uint32_t cpuFlags; // v6809 IRQ/RESET flags
+ uint32_t clockOverrun;
};
// Function prototypes
-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
+void Execute6809(V6809REGS *, uint32_t); // Function to execute 6809 instructions
+uint64_t GetCurrentV6809Clock(void); // Get the clock of the currently executing CPU
+uint16_t GetCurrentV6809PC(void); // Get the PC of the currently executing CPU
+void SetLineOfCurrentV6809(uint32_t line); // Set a line of the currently executing CPU
+void ClearLineOfCurrentV6809(uint32_t line); // Clear a line of the currently executing CPU
#endif // __V6809_H__
+