mirror of
https://github.com/Oibaf66/frodo-wii.git
synced 2024-11-26 05:24:21 +01:00
40 lines
658 B
C++
40 lines
658 B
C++
/*
|
|
* REU.h - 17xx REU emulation
|
|
*
|
|
* Frodo (C) 1994-1997,2002 Christian Bauer
|
|
*/
|
|
|
|
#ifndef _REU_H
|
|
#define _REU_H
|
|
|
|
|
|
class MOS6510;
|
|
class Prefs;
|
|
|
|
class REU {
|
|
public:
|
|
REU(MOS6510 *CPU);
|
|
~REU();
|
|
|
|
void NewPrefs(Prefs *prefs);
|
|
void Reset(void);
|
|
uint8 ReadRegister(uint16 adr);
|
|
void WriteRegister(uint16 adr, uint8 byte);
|
|
void FF00Trigger(void);
|
|
|
|
private:
|
|
void open_close_reu(int old_size, int new_size);
|
|
void execute_dma(void);
|
|
|
|
MOS6510 *the_cpu; // Pointer to 6510
|
|
|
|
uint8 *ex_ram; // REU expansion RAM
|
|
|
|
uint32 ram_size; // Size of expansion RAM
|
|
uint32 ram_mask; // Expansion RAM address bit mask
|
|
|
|
uint8 regs[16]; // REU registers
|
|
};
|
|
|
|
#endif
|