Found and fixed 3 decoder.isa bugs!!! Now the hello_world program runs for a while

before getting in a infinite loop. It actually "tries" to syscall too, but syscalls
aren't implemented just yet

arch/mips/faults.cc:
    more descriptive names for faults (will help future users as well as me!)
arch/mips/isa/base.isa:
    make sure we are printing out "BasicOp" format disassembly instructions as dest,src,src instead of src,src,dest
arch/mips/isa/decoder.isa:
    FIX LW/SW Bug!!!! I was actually loading a byte instead of a word
    FIX JALR Bug!!!! I was not saving the link address in R31 for this instruction
    FIX SLL/NOP Bug!!! We now recognize the varying flavors of sll,nop,ehb,& ssnop correctly
base/loader/elf_object.cc:
    change back to original way
base/loader/elf_object.hh:
    change back to original!

--HG--
extra : convert_revision : 39b65fba31c1842ac6966346fe8a35816a4231fa

1 files changed, 11 insertions, 14 deletions

diff --git a/arch/mips/isa/base.isa b/arch/mips/isa/base.isa
index 4125b5101..89837c136 100644
--- a/arch/mips/isa/base.isa
+++ b/arch/mips/isa/base.isa
@@ -66,27 +66,24 @@ output decoder {{
 
         ccprintf(ss, "%-10s ", mnemonic);
 
-        // just print the first two source regs... if there's
-        // a third one, it's a read-modify-write dest (Rc),
-        // e.g. for CMOVxx
-        if(_numSrcRegs > 0)
-        {
+        if(_numDestRegs > 0){
+            if(_numSrcRegs > 0)
+                ss << ",";
+            printReg(ss, _destRegIdx[0]);
+        }
+
+        if(_numSrcRegs > 0) {
             printReg(ss, _srcRegIdx[0]);
         }
 
-        if(_numSrcRegs > 1)
-        {
+        if(_numSrcRegs > 1) {
             ss << ",";
             printReg(ss, _srcRegIdx[1]);
         }
 
-        // just print the first dest... if there's a second one,
-        // it's generally implicit
-        if(_numDestRegs > 0)
-        {
-            if(_numSrcRegs > 0)
-                ss << ",";
-            printReg(ss, _destRegIdx[0]);
+
+        if(mnemonic == "sll"){
+            ccprintf(ss," %d",SA);
         }
 
         return ss.str();