X-Git-Url: http://git.megacz.com/?p=nestedvm.git;a=blobdiff_plain;f=src%2Forg%2Fibex%2Fnestedvm%2FInterpreter.java;h=2e8252f640a79397b6dee2abdd93686c04630eb0;hp=3ad9f4e17a91e73bb358ffe918ac96e9f03b74e9;hb=b11e7c6c29f2b5f7b0828bf93eb741c4a30ec411;hpb=18b5a6a40bca8c57f77b9fc7a8bb4b956841c631

diff --git a/src/org/ibex/nestedvm/Interpreter.java b/src/org/ibex/nestedvm/Interpreter.java
index 3ad9f4e..2e8252f 100644
--- a/src/org/ibex/nestedvm/Interpreter.java
+++ b/src/org/ibex/nestedvm/Interpreter.java
@@ -1,3 +1,7 @@
+// Copyright 2000-2005 the Contributors, as shown in the revision logs.
+// Licensed under the Apache License 2.0 ("the License").
+// You may not use this file except in compliance with the License.
+
 // Copyright 2003 Brian Alliet
 // Based on org.xwt.imp.MIPS by Adam Megacz
 // Portions Copyright 2003 Adam Megacz
@@ -125,7 +129,7 @@ public class Interpreter extends UnixRuntime implements Cloneable {
                         continue OUTER;
                     case 12: // SYSCALL
                         this.pc = pc;
-                        r[V0] = syscall(r[V0],r[A0],r[A1],r[A2],r[A3]);
+                        r[V0] = syscall(r[V0],r[A0],r[A1],r[A2],r[A3],r[T0],r[T1]);
                         if(state != RUNNING) { this.pc = nextPC; break OUTER; }
                         break;
                     case 13: // BREAK
@@ -143,7 +147,7 @@ public class Interpreter extends UnixRuntime implements Cloneable {
                         lo = r[rs];
                         break;
                     case 24: { // MULT
-                        long hilo = (long)(r[rs]) * ((long)r[rt]);
+                        long hilo = ((long)r[rs]) * ((long)r[rt]);
                         hi = (int) (hilo >>> 32);
                         lo = (int) hilo;
                         break;
@@ -363,6 +367,9 @@ public class Interpreter extends UnixRuntime implements Cloneable {
                             case 60: // C.LT.S
                                 setFC(getFloat(fs) < getFloat(ft));
                                 break;
+                            case 62: // C.LE.S
+                                setFC(getFloat(fs) <= getFloat(ft));
+                                break;   
                             default: throw new ExecutionException("Invalid Instruction 17/" + rs + "/" + subcode + " at " + sourceLine(pc));
                         }
                         break;
@@ -463,9 +470,10 @@ public class Interpreter extends UnixRuntime implements Cloneable {
                 } catch(RuntimeException e) {
                     tmp = memRead(addr&~3);
                 }
-                switch(addr&2) {
+                switch(addr&3) {
                     case 0: tmp = (tmp>>>16)&0xffff; break;
                     case 2: tmp = (tmp>>> 0)&0xffff; break;
+                    default: throw new ReadFaultException(addr);
                 }
                 if((tmp&0x8000)!=0) tmp |= 0xffff0000; // sign extend
                 r[rt] = tmp;
@@ -516,9 +524,10 @@ public class Interpreter extends UnixRuntime implements Cloneable {
                 } catch(RuntimeException e) {
                     tmp = memRead(addr&~3);
                 }
-                switch(addr&2) {
+                switch(addr&3) {
                     case 0: r[rt] = (tmp>>>16)&0xffff; break;
                     case 2: r[rt] = (tmp>>> 0)&0xffff; break;
+                    default: throw new ReadFaultException(addr);
                 }
                 break;
             }
@@ -564,9 +573,10 @@ public class Interpreter extends UnixRuntime implements Cloneable {
                 } catch(RuntimeException e) {
                     tmp = memRead(addr&~3);
                 }
-                switch(addr&2) {
+                switch(addr&3) {
                     case 0: tmp = (tmp&0x0000ffff) | ((r[rt]&0xffff)<<16); break;
                     case 2: tmp = (tmp&0xffff0000) | ((r[rt]&0xffff)<< 0); break;
+                    default: throw new WriteFaultException(addr);
                 }
                 try {
                     writePages[addr>>>pageShift][(addr>>>2)&(PAGE_WORDS-1)] = tmp;
@@ -662,9 +672,9 @@ public class Interpreter extends UnixRuntime implements Cloneable {
         ELF elf = new ELF(data);
         symtab = elf.getSymtab();
         
-        if(elf.header.type != ELF.ELFHeader.ET_EXEC) throw new IOException("Binary is not an executable");
-        if(elf.header.machine != ELF.ELFHeader.EM_MIPS) throw new IOException("Binary is not for the MIPS I Architecture");
-        if(elf.ident.data != ELF.ELFIdent.ELFDATA2MSB) throw new IOException("Binary is not big endian");
+        if(elf.header.type != ELF.ET_EXEC) throw new IOException("Binary is not an executable");
+        if(elf.header.machine != ELF.EM_MIPS) throw new IOException("Binary is not for the MIPS I Architecture");
+        if(elf.ident.data != ELF.ELFDATA2MSB) throw new IOException("Binary is not big endian");
         
         entryPoint = elf.header.entry;
         
@@ -684,7 +694,7 @@ public class Interpreter extends UnixRuntime implements Cloneable {
         int pageWords = (1<<pageShift) >> 2;
         for(int i=0;i<pheaders.length;i++) {
             ELF.PHeader ph = pheaders[i];
-            if(ph.type != ELF.PHeader.PT_LOAD) continue;
+            if(ph.type != ELF.PT_LOAD) continue;
             int memsize = ph.memsz;
             int filesize = ph.filesz;
             if(memsize == 0) continue;