Darkress/pic16f84-sim
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

implemented Goto Instruction; Increment ProgramCounter;

Browse Source
This commit is contained in:
Darkress
2023-05-29 18:05:26 +02:00
parent bfbec8d525
commit e58624dacd
6 changed files with 78 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
de/darkress/pic16f84sim/microcontroller/ProgramCounter.java
View File

@@ -4,20 +4,35 @@ public class ProgramCounter
//This class is not actual part of the µC. It is a storage for the current value of the PC
{
private static int PC = 0;
private static int pc = 0;
public static int getPC()
public static int getPc()
{
return PC;
return pc;
}
public static void setPC(int PC)
public static void setPcForGotoCall(int data)
{
ProgramCounter.PC = PC;
int pcl = data & 0x00FF;
int pch = Memory.getPCLATH();
pch = ((pch & 0xF8) <<8) + (data & 0x700);
Memory.setPCL(pcl);
pc = (pch) + pcl;
}
public static void incPC()
public static void incPC() //is called after every instruction execution
{
PC++;
int pcl = Memory.getPCL();
int pclath = Memory.getPCLATH();
if(pcl == 0xFF)
{
pclath++;
pcl = 0;
} else {
pcl++;
}
Memory.setPCL(pcl);
Memory.setPCLATH(pclath);
pc = (pclath <<8) + pcl;
}
}