import org.ibex.nestedvm.util.*;
import java.io.*;
-public class Interpreter extends UnixRuntime {
+public class Interpreter extends UnixRuntime implements Cloneable {
// Registers
private int[] registers = new int[32];
private int hi,lo;
}
}
+ protected Object clone() throws CloneNotSupportedException {
+ Interpreter r = (Interpreter) super.clone();
+ r.registers = (int[]) registers.clone();
+ r.fpregs = (int[]) fpregs.clone();
+ return r;
+ }
+
// Main interpretor
// the return value is meaningless, its just to catch people typing "return" by accident
private final int runSome() throws FaultException,ExecutionException {
try {
insn = readPages[pc>>>pageShift][(pc>>>2)&PAGE_WORDS-1];
} catch (RuntimeException e) {
+ if(pc == 0xdeadbeef) throw new Error("fell off cpu: r2: " + r[2]);
insn = memRead(pc);
}
r[rt] = r[rs] < signedImmediate ? 1 : 0;
break;
case 11: // SLTIU
- r[rt] = (r[rs]&0xffffffffL) < (unsignedImmediate&0xffffffffL) ? 1 : 0;
+ r[rt] = (r[rs]&0xffffffffL) < (signedImmediate&0xffffffffL) ? 1 : 0;
break;
case 12: // ANDI
r[rt] = r[rs] & unsignedImmediate;
}
case 20: { // Integer
switch(subcode) {
+ case 32: // CVT.S.W
+ setFloat(fd,f[fs]);
+ break;
case 33: // CVT.D.W
setDouble(fd,f[fs]);
break;
memWrite(addr&~3,tmp);
break;
}
- // FEATURE: Needs to be atomic w/ threads
+ // Needs to be atomic w/ threads
case 48: // LWC0/LL
r[rt] = memRead(r[rs] + signedImmediate);
break;
case 49: // LWC1
f[rt] = memRead(r[rs] + signedImmediate);
break;
- // FEATURE: Needs to be atomic w/ threads
+ // Needs to be atomic w/ threads
case 56:
memWrite(r[rs] + signedImmediate,r[rt]);
r[rt] = 1;