73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
#ifndef MACHINE_H
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#define MACHINE_H
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#include <cstdint>
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#include "Device.h"
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const int MAX_ADDRESS = 0xFFFFF;
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const int MAX_DEVICES = 256;
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class Machine {
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private:
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uint8_t memory[MAX_ADDRESS + 1];
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Device* devices[MAX_DEVICES];
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// registers
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int A; // Accumulator (24-bit)
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int X; // Index (24-bit)
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int L; // Linkage (24-bit)
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int B; // Base (24-bit)
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int S; // General purpose (24-bit)
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int T; // General purpose (24-bit)
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double F; // Floating point accumulator (48-bit)
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int PC; // Program Counter (24-bit)
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int SW; // Status Word (24-bit)
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public:
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Machine();
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~Machine();
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// getters
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int getA() const;
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int getX() const;
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int getL() const;
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int getB() const;
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int getS() const;
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int getT() const;
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double getF() const;
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int getPC() const;
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int getSW() const;
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// setters
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void setA(int val);
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void setX(int val);
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void setL(int val);
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void setB(int val);
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void setS(int val);
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void setT(int val);
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void setF(double val);
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void setPC(int val);
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void setSW(int val);
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// condition codes for SW
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void setCC_less();
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void setCC_equal();
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void setCC_greater();
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int getCC() const;
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// 0=A, 1=X, 2=L, 3=B, 4=S, 5=T, 6=F, 8=PC, 9=SW
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int getReg(int reg) const;
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void setReg(int reg, int val);
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int getByte(int addr) const;
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void setByte(int addr, int val);
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int getWord(int addr) const;
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void setWord(int addr, int val);
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Device* getDevice(int num) const;
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void setDevice(int num, Device* device);
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};
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#endif // MACHINE_H
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