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56 lines
1.1 KiB
C++
56 lines
1.1 KiB
C++
#ifndef __MDFN_PCE_ARCADE_CARD_H
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#define __MDFN_PCE_ARCADE_CARD_H
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typedef struct
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{
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uint32 base; // 24 bits
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uint16 offset; // 16 bits
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uint16 increment; // 16 bits
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uint8 control; // 7 bits
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} ACPort_t;
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typedef struct
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{
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ACPort_t ports[4];
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uint32 shift_latch; // 32 bits
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uint8 shift_bits; // signed 4-bit value
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uint8 rotate_bits; // same
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} ArcadeCard_t;
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class ArcadeCard
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{
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public:
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ArcadeCard(void);
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~ArcadeCard();
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void Power(void);
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int StateAction(StateMem *sm, int load, int data_only);
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uint8 Read(uint32 A, bool peek = false); // Pass peek as true if you don't want side-effects from this read(IE in a debugger).
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void Write(uint32 A, uint8 V);
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INLINE void PhysWrite(uint32 A, uint8 V)
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{
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Write(0x1a00 | ((A >> 9) & 0x30), V);
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}
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INLINE uint8 PhysRead(uint32 A, bool peek = false)
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{
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return(Read(0x1a00 | ((A >> 9) & 0x30), peek));
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}
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void PeekRAM(uint32 Address, uint32 Length, uint8 *Buffer);
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void PokeRAM(uint32 Address, uint32 Length, const uint8 *Buffer);
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private:
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ArcadeCard_t AC;
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bool ACRAMUsed;
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uint8 ACRAM[0x200000];
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};
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#endif
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