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Remove useless volatile from ProcessorInterface. 

These values are only accessed/used from the CPU thread.
This commit is contained in:
magumagu 2015-03-15 20:33:41 -07:00
parent 7cda374910
commit fd15cad1ca
2 changed files with 10 additions and 14 deletions
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20
Source/Core/Core/HW/ProcessorInterface.cpp
View File

@ -4,7 +4,6 @@
#include <cstdio> #include <cstdio>
#include "Common/Atomic.h"
#include "Common/ChunkFile.h" #include "Common/ChunkFile.h"
#include "Common/CommonTypes.h" #include "Common/CommonTypes.h"
@ -37,8 +36,8 @@ enum
// STATE_TO_SAVE // STATE_TO_SAVE
volatile u32 m_InterruptCause; u32 m_InterruptCause;
volatile u32 m_InterruptMask; u32 m_InterruptMask;
// addresses for CPU fifo accesses // addresses for CPU fifo accesses
u32 Fifo_CPUBase; u32 Fifo_CPUBase;
u32 Fifo_CPUEnd; u32 Fifo_CPUEnd;
@ -98,7 +97,7 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
mmio->Register(base | PI_INTERRUPT_CAUSE, mmio->Register(base | PI_INTERRUPT_CAUSE,
MMIO::DirectRead<u32>(&m_InterruptCause), MMIO::DirectRead<u32>(&m_InterruptCause),
MMIO::ComplexWrite<u32>([](u32, u32 val) { MMIO::ComplexWrite<u32>([](u32, u32 val) {
Common::AtomicAnd(m_InterruptCause, ~val); m_InterruptCause &= ~val;
UpdateException(); UpdateException();
}) })
); );
@ -204,20 +203,17 @@ void SetInterrupt(u32 _causemask, bool _bSet)
} }
if (_bSet) if (_bSet)
Common::AtomicOr(m_InterruptCause, _causemask); m_InterruptCause |= _causemask;
else else
Common::AtomicAnd(m_InterruptCause, ~_causemask);// is there any reason to have this possibility? m_InterruptCause &= ~_causemask;// is there any reason to have this possibility?
// F|RES: i think the hw devices reset the interrupt in the PI to 0 // F|RES: i think the hw devices reset the interrupt in the PI to 0
// if the interrupt cause is eliminated. that isnt done by software (afaik) // if the interrupt cause is eliminated. that isnt done by software (afaik)
UpdateException(); UpdateException();
} }
static void SetResetButton(bool _bSet) static void SetResetButton(bool _bSet)
{ {
if (_bSet) SetInterrupt(INT_CAUSE_RST_BUTTON, !_bSet);
Common::AtomicAnd(m_InterruptCause, ~INT_CAUSE_RST_BUTTON);
else
Common::AtomicOr(m_InterruptCause, INT_CAUSE_RST_BUTTON);
} }
void ToggleResetButtonCallback(u64 userdata, int cyclesLate) void ToggleResetButtonCallback(u64 userdata, int cyclesLate)

4
Source/Core/Core/HW/ProcessorInterface.h
View File

@ -35,8 +35,8 @@ enum InterruptCause
}; };
extern volatile u32 m_InterruptCause; extern u32 m_InterruptCause;
extern volatile u32 m_InterruptMask; extern u32 m_InterruptMask;
extern u32 Fifo_CPUBase; extern u32 Fifo_CPUBase;
extern u32 Fifo_CPUEnd; extern u32 Fifo_CPUEnd;
extern u32 Fifo_CPUWritePointer; extern u32 Fifo_CPUWritePointer;