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fix(intr): Modify Spike so that when it acts as REF, it can only chec… #72

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merged 1 commit into from
Jan 2, 2025
+12 −4
Merged

fix(intr): Modify Spike so that when it acts as REF, it can only chec… #72

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7 changes: 3 additions & 4 deletions difftest/difftest.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -388,11 +388,10 @@ void DifftestRef::raise_intr(uint64_t no) {
bool external_set = (is_timer_interrupt || is_external_interrupt) && from_outside;
if (external_set) {
state->mip->backdoor_write_with_mask(mip_bit, mip_bit);
step(1);
state->mip->backdoor_write_with_mask(mip_bit, ~mip_bit);
} else {
step(1);
}
p->check_interrupt = true;
step(1);
p->check_interrupt = false;
}
}

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6 changes: 6 additions & 0 deletions riscv/execute.cc
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Expand Up @@ -245,7 +245,13 @@ void processor_t::step(size_t n)

try
{
#if defined(DIFFTEST)
if (check_interrupt) {
take_pending_interrupt();
}
#else
take_pending_interrupt();
#endif

check_if_lpad_required();

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3 changes: 3 additions & 0 deletions riscv/processor.h
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Expand Up @@ -451,6 +451,9 @@ class processor_t : public abstract_device_t

vectorUnit_t VU;
triggers::module_t TM;
#if defined(DIFFTEST)
bool check_interrupt = false;
#endif
};

#endif
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