diff options
Diffstat (limited to 'src/arch/arm/isa.hh')
| -rw-r--r-- | src/arch/arm/isa.hh | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/arch/arm/isa.hh b/src/arch/arm/isa.hh index 0d83853b6..8318417f5 100644 --- a/src/arch/arm/isa.hh +++ b/src/arch/arm/isa.hh @@ -137,6 +137,46 @@ namespace ArmISA return reg; } + int + flattenMiscIndex(int reg) + { + if (reg == MISCREG_SPSR) { + int spsr_idx = NUM_MISCREGS; + CPSR cpsr = miscRegs[MISCREG_CPSR]; + switch (cpsr.mode) { + case MODE_USER: + warn("User mode does not have SPSR\n"); + spsr_idx = MISCREG_SPSR; + break; + case MODE_FIQ: + spsr_idx = MISCREG_SPSR_FIQ; + break; + case MODE_IRQ: + spsr_idx = MISCREG_SPSR_IRQ; + break; + case MODE_SVC: + spsr_idx = MISCREG_SPSR_SVC; + break; + case MODE_MON: + spsr_idx = MISCREG_SPSR_MON; + break; + case MODE_ABORT: + spsr_idx = MISCREG_SPSR_ABT; + break; + case MODE_UNDEFINED: + spsr_idx = MISCREG_SPSR_UND; + break; + default: + warn("Trying to access SPSR in an invalid mode: %d\n", + cpsr.mode); + spsr_idx = MISCREG_SPSR; + break; + } + return spsr_idx; + } + return reg; + } + void serialize(EventManager *em, std::ostream &os) {} void unserialize(EventManager *em, Checkpoint *cp, |