33 lines
665 B
C
33 lines
665 B
C
#ifndef _BUS_H_
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#define _BUS_H_
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#include "types.h"
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struct CPU;
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struct Cartridge;
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// Main communication path for devices and memory in the NES
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struct Bus
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{
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Byte* ram;
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Byte* io;
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struct CPU* cpu;
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struct Cartridge* cartridge;
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};
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// Sets up the Bus, allocates memory and creates devices
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struct Bus* createBus();
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// Destroys the bus, cleans up memory and destroys devices on the Bus
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void destroyBus(struct Bus* bus);
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// Read/Write to and from the bus
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Byte readBus(struct Bus* bus, Word addr);
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void writeBus(struct Bus* bus, Word addr, Byte val);
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// Ticks the master clock 12 times (i.e. 1 CPU tick & 3 PPU dots)
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void tick(struct Bus* bus);
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#endif // _BUS_H_
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