34 lines
647 B
C
34 lines
647 B
C
#ifndef CPU_H
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#define CPU_H
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#include <stdint.h>
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#include <unistd.h>
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typedef struct {
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uint16_t ProgrammeCounter;
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uint8_t StackPointer;
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uint8_t Accumulator;
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uint8_t X;
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uint8_t Y;
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union {
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uint8_t FlagsByte;
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struct {
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uint8_t CarryFlag : 1;
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uint8_t ZeroFlag : 1;
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uint8_t InterruptDisable : 1;
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uint8_t DecimalMode : 1;
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uint8_t BreakCommand : 1;
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uint8_t UNUSED : 1;
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uint8_t OverflowFlag : 1;
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uint8_t NegativeFlag : 1;
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} Flags;
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};
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} CPU;
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void initCPU(CPU *cpu);
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void resetCPU(CPU *cpu, uint8_t *rom);
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useconds_t runCycle(CPU *cpu, uint8_t *ram, uint8_t *rom);
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#endif // CPU_H
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