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(nw) MIPS3: Don't adjust EPC to pc-4 when not backing up

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This commit is contained in:
Ted Green 2019-04-11 13:59:48 -06:00
parent db3712af7c
commit e923b26d00
1 changed files with 2 additions and 7 deletions
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9
src/devices/cpu/mips/mips3.cpp
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@ -19,7 +19,6 @@
#define ENABLE_OVERFLOWS (0)
#define ENABLE_EE_ELF_LOADER (0)
#define ENABLE_EE_DECI2 (0)
#define DELAY_SLOT_EXCEPTION_HACK (0)
/***************************************************************************
HELPER MACROS
@ -315,12 +314,8 @@ void mips3_device::generate_exception(int exception, int backup)
/* check if exception within another exception */
if (!(SR & SR_EXL))
{
/* if we were in a branch delay slot, adjust */
#if DELAY_SLOT_EXCEPTION_HACK
if (((m_nextpc != ~0) || (m_delayslot)) && (m_ppc == m_core->pc - 4))
#else
if ((m_nextpc != ~0) || (m_delayslot))
#endif
/* if we were in a branch delay slot and we are backing up, adjust */
if (((m_nextpc != ~0) || (m_delayslot)) && backup)
{
m_delayslot = false;
m_nextpc = ~0;