Merge branch 'master' of https://github.com/zylin/zpu

1 files changed, 126 insertions, 0 deletions

diff --git a/zpu/sw/simulator/com/zylin/zpu/simulator/Phi.java b/zpu/sw/simulator/com/zylin/zpu/simulator/Phi.java
new file mode 100644
index 0000000..663e68f
--- /dev/null
+++ b/zpu/sw/simulator/com/zylin/zpu/simulator/Phi.java
@@ -0,0 +1,126 @@
+
+package com.zylin.zpu.simulator;
+
+import com.zylin.zpu.simulator.exceptions.CPUException;
+import com.zylin.zpu.simulator.exceptions.MemoryAccessException;
+
+public class Phi extends Simulator
+{
+	@Override
+	protected long getSampleOffset()
+	{
+		 
+		return super.getSampleOffset()-(0x5e7b2-0x0005E7C0);
+	}
+
+
+	public static void main(String[] args)
+	{
+        new SimApp(new SimFactory()
+        {
+        	public Simulator create()
+        	{
+        		return new Phi();
+        	}
+        }).run(args);
+	}
+    
+
+    protected int getIO()
+    {
+        return 0x08000000;
+    }
+
+
+
+    protected int ioRead(int addr) throws CPUException
+    {
+        switch (addr)
+        {
+        
+        case 0x080a0020:
+        	return interrupt?0:1; // interrupt mask
+
+        	
+        
+            /* FIFO empty? bit 0, FIFO full bit 1(never the case) */
+            case 0x080a000c:
+            	return 0x100; // buffer ready. 
+                
+            case 0x080a0014:
+            case 0x080a0018:
+            return readSampledTimer(addr, 0x080a0014);
+
+            case 0x080a0030:
+            	return timerPending?1:0;
+            case 0x080a0038:
+            	return (int)(timerInterval-1-((cycles-lastTimer)%timerInterval));
+
+            
+        	default:
+        		throw new MemoryAccessException();
+        }
+    }
+
+
+
+    protected void ioWrite(int addr, int val) throws MemoryAccessException
+    {
+        switch (addr)
+        {
+        case 0x080a0020:
+        	interrupt=(val&1)==0;
+        	return;
+        case 0x080a002c:
+        	timer=(val&0x1)!=0;
+        	break;
+        case 0x080a0030:
+        	if ((val&0x1)!=0)
+        	{
+        		timerPending=false;
+        	}
+        	if ((val&0x2)!=0)
+        	{
+        		lastTimer=cycles;
+        	}
+        	break;
+        case 0x080a0034:
+        	timerInterval=val;
+        	return;
+        	
+            case 0x080a0014:
+                writeTimerSampleReg(val);
+            case 0x080a000c:
+                syscall.writeUART(val);
+                break;
+        	default:
+                throw new MemoryAccessException();
+        }
+    }
+
+    public Phi() throws CPUException
+    {
+    }
+
+    protected boolean emulateConfig()
+    {
+        return true;
+    }
+
+    protected int getStartStack()
+    {
+        return getRAMSIZE()-8;
+    }
+
+    protected int getRAMSIZE()
+    {
+        return 2*1024*1024;
+    }
+
+
+	protected int getIOSIZE()
+	{
+		return 0x100000;
+	}
+
+}