diff options
Diffstat (limited to 'src/arch/arm/insts/static_inst.cc')
| -rw-r--r-- | src/arch/arm/insts/static_inst.cc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/arch/arm/insts/static_inst.cc b/src/arch/arm/insts/static_inst.cc index aace1de2b..a7ba91e03 100644 --- a/src/arch/arm/insts/static_inst.cc +++ b/src/arch/arm/insts/static_inst.cc @@ -1018,7 +1018,17 @@ ArmStaticInst::getPSTATEFromPSR(ThreadContext *tc, CPSR cpsr, CPSR spsr) const new_cpsr.ss = 0; if (illegalExceptionReturn(tc, cpsr, spsr)) { + // If the SPSR specifies an illegal exception return, + // then PSTATE.{M, nRW, EL, SP} are unchanged and PSTATE.IL + // is set to 1. new_cpsr.il = 1; + if (cpsr.width) { + new_cpsr.mode = cpsr.mode; + } else { + new_cpsr.width = cpsr.width; + new_cpsr.el = cpsr.el; + new_cpsr.sp = cpsr.sp; + } } else { new_cpsr.il = spsr.il; if (spsr.width && badMode32((OperatingMode)(uint8_t)spsr.mode)) { |