//
// by James L. Hammons
//
-// (c) 1997, 2004 Underground Software
+// (C) 1997, 2004 Underground Software
//
#ifndef __V6809_H__
struct V6809REGS
{
- uint16 pc; // 6809 PC register
+ 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 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
-//uint32 _reserved;// uint8 (* Fetch)(uint16&); // Address of uint8 fetch routine
+ 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 *, uint32); // 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 SetLine(uint32 line); // Set a line of the currently executing CPU
+void ClearLine(uint32 line); // Clear a line of the currently executing CPU
#endif // __V6809_H__