Fixes to SPARC syscall emulation mode.

arch/sparc/isa/base.isa:
    Added a set of abbreviations for the different condition tests.
arch/sparc/isa/decoder.isa:
    Fixes and additions to get syscall emulation closer to working.
arch/sparc/isa/formats/branch.isa:
    Fixed branches so that the immediate version actually uses the immediate value
arch/sparc/isa/formats/integerop.isa:
    Compute the condition codes -before- writing to the state of the machine.
arch/sparc/isa/formats/mem.isa:
    An attempt to fix up the output of the disassembly of loads and stores.
arch/sparc/isa/formats/trap.isa:
    Added code to disassemble a trap instruction. This probably needs to be fixed up so there are immediate and register versions.
arch/sparc/isa/operands.isa:
    Added an R1 operand, and fixed up the numbering
arch/sparc/isa_traits.hh:
    SyscallNumReg is no longer needed, the max number of sources and destinations are fixed up, and the syscall return uses xcc instead of icc.
arch/sparc/linux/process.cc:
arch/sparc/linux/process.hh:
    Added a getresuidFunc syscall implementation. This isn't actually used, but I thought it was and will leave it in.
arch/sparc/process.cc:
arch/sparc/process.hh:
    Fixed up how the initial stack frame is set up.
arch/sparc/regfile.hh:
    Changed the number of windows from 6 to 32 so we don't have to worry about spill and fill traps for now, and commented out the register file setting itself up.
cpu/cpu_exec_context.hh:
cpu/exec_context.hh:
cpu/simple/cpu.hh:
sim/process.cc:
sim/process.hh:
    Changed the syscall mechanism to pass down the syscall number directly.

--HG--
extra : convert_revision : 15723b949a0ddb3d24e68c079343b4dba2439f43

1 files changed, 3 insertions, 4 deletions

diff --git a/arch/sparc/isa_traits.hh b/arch/sparc/isa_traits.hh
index 57206c5e5..453d14664 100644
--- a/arch/sparc/isa_traits.hh
+++ b/arch/sparc/isa_traits.hh
@@ -118,13 +118,12 @@ namespace SparcISA
     const int ArgumentReg3 = 11;
     const int ArgumentReg4 = 12;
     const int ArgumentReg5 = 13;
-    const int SyscallNumReg = 1;
     // Some OS syscall use a second register (o1) to return a second value
     const int SyscallPseudoReturnReg = ArgumentReg1;
 
     //XXX These numbers are bogus
     const int MaxInstSrcRegs = 8;
-    const int MaxInstDestRegs = 3;
+    const int MaxInstDestRegs = 9;
 
     typedef uint64_t IntReg;
 
@@ -174,11 +173,11 @@ namespace SparcISA
         // and put the return value itself in the standard return value reg ().
         if (return_value.successful()) {
             // no error
-            regs->setMiscReg(MISCREG_CCR_ICC_C, 0);
+            regs->setMiscReg(MISCREG_CCR_XCC_C, 0);
             regs->setIntReg(ReturnValueReg, return_value.value());
         } else {
             // got an error, return details
-            regs->setMiscReg(MISCREG_CCR_ICC_C, 1);
+            regs->setMiscReg(MISCREG_CCR_XCC_C, 1);
             regs->setIntReg(ReturnValueReg, return_value.value());
         }
     }