diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/sparc/syscallreturn.hh | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/arch/sparc/syscallreturn.hh b/src/arch/sparc/syscallreturn.hh index cf13fc3e8..d4e6c7c50 100644 --- a/src/arch/sparc/syscallreturn.hh +++ b/src/arch/sparc/syscallreturn.hh @@ -50,13 +50,23 @@ namespace SparcISA tc->setIntReg(NumIntArchRegs + 2, tc->readIntReg(NumIntArchRegs + 2) & 0xEE); //tc->setMiscRegNoEffect(MISCREG_CCR, tc->readMiscRegNoEffect(MISCREG_CCR) & 0xEE); - tc->setIntReg(ReturnValueReg, return_value.value()); + IntReg val = return_value.value(); + if (bits(tc->readMiscRegNoEffect( + SparcISA::MISCREG_PSTATE), 3, 3)) { + val = bits(val, 31, 0); + } + tc->setIntReg(ReturnValueReg, val); } else { // got an error, set XCC.C tc->setIntReg(NumIntArchRegs + 2, tc->readIntReg(NumIntArchRegs + 2) | 0x11); //tc->setMiscRegNoEffect(MISCREG_CCR, tc->readMiscRegNoEffect(MISCREG_CCR) | 0x11); - tc->setIntReg(ReturnValueReg, -return_value.value()); + IntReg val = -return_value.value(); + if (bits(tc->readMiscRegNoEffect( + SparcISA::MISCREG_PSTATE), 3, 3)) { + val = bits(val, 31, 0); + } + tc->setIntReg(ReturnValueReg, val); } } }; |