40 lines
876 B
Java
40 lines
876 B
Java
package de.darkress.pic16f84sim.microcontroller;
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public class ProgramCounter
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//This class is not actual part of the µC. It is a storage for the current value of the PC
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{
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private static int pc = 0;
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public static int getPc()
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{
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return pc;
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}
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public static void setPcFrom11BitLiteral(int data)
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{
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int pcl = data & 0x00FF;
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int pch = Memory.getPCLATH();
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pch = ((pch & 0xF8) <<8) + (data & 0x700);
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Memory.setPCL(pcl);
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pc = (pch) + pcl;
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}
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public static void setPcFromStack(int stack)
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{
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pc = stack;
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Memory.setPCL(pc & 0x00FF);
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}
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public static void loadPc()
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{
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pc = (Memory.getPCLATH() <<8) + Memory.getPCL();
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}
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public static void incPC() //is called after every instruction execution
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{
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pc++;
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Memory.setPCL(pc & 0x00FF);
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}
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}
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