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