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thermosphere: more sysreg code

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This commit is contained in:
TuxSH 2019-07-25 17:50:15 +02:00
parent ffa216c8c7
commit 68469ea862
3 changed files with 121 additions and 11 deletions
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25
thermosphere/src/exceptions.h
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@ -79,4 +79,29 @@ typedef struct ExceptionSyndromeRegister {
u32 res0 : 32;
} ExceptionSyndromeRegister;
static inline bool spsrIsA32(u64 spsr)
{
return (spsr & 0x10) != 0;
}
static inline bool spsrIsThumb(u64 spsr)
{
return spsrIsA32(spsr) && (spsr & 0x20) != 0;
}
static inline u32 spsrGetT32ItFlags(u64 spsr)
{
return (((spsr >> 10) & 0x3F) << 2) | ((spsr >> 25) & 3);
}
static inline void spsrSetT32ItFlags(u64 *spsr, u32 itFlags)
{
static const u32 itMask = (0x3F << 10) | (3 << 25);
*spsr &= ~itMask;
*spsr |= (itFlags & 3) << 25;
*spsr |= ((itFlags >> 2) & 0x3F) << 10;
}
bool spsrEvaluateConditionCode(u64 spsr, u32 conditionCode);
void skipFaultingInstruction(ExceptionStackFrame *frame, u32 size);
void dumpStackFrame(const ExceptionStackFrame *frame, bool sameEl);