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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| // Copyright (c) 2019-2024 Andreas T Jonsson <mail@andreasjonsson.se> | ||
| // | ||
| // This software is provided 'as-is', without any express or implied | ||
| // warranty. In no event will the authors be held liable for any damages | ||
| // arising from the use of this software. | ||
| // | ||
| // Permission is granted to anyone to use this software for any purpose, | ||
| // including commercial applications, and to alter it and redistribute it | ||
| // freely, subject to the following restrictions: | ||
| // | ||
| // 1. The origin of this software must not be misrepresented; you must not | ||
| // claim that you wrote the original software. If you use this software | ||
| // in a product, an acknowledgment in the product documentation would be | ||
| // appreciated but is not required. | ||
| // | ||
| // 2. Altered source versions must be plainly marked as such, and must not be | ||
| // misrepresented as being the original software. | ||
| // | ||
| // 3. This notice may not be removed or altered from any source | ||
| // distribution. | ||
|
|
||
| #include "emuloop.h" | ||
|
|
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| #define SYSTEM_STEPS 1 | ||
| #define GET_TICKS ( CTimer::GetClockTicks64() * (vxt_system_frequency(m_pSystem) / 1000000) ) | ||
|
|
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| #ifndef ARM_ALLOW_MULTI_CORE | ||
| #error You need to enable multicore support! | ||
| #endif | ||
|
|
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| CSpinLock CEmuLoop::s_SpinLock(TASK_LEVEL); | ||
|
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| CEmuLoop::CEmuLoop(CMemorySystem *mem, vxt_system *s) | ||
| : CMultiCoreSupport(mem), | ||
| m_pSystem(s) | ||
| { | ||
| } | ||
|
|
||
| CEmuLoop::~CEmuLoop(void) { | ||
| } | ||
|
|
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| void CEmuLoop::Run(unsigned nCore) { | ||
| if (nCore != 1) | ||
| return; | ||
|
|
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| VXT_LOG("Emulation loop started!"); | ||
|
|
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| assert(CLOCKHZ == 1000000); | ||
| u64 virtual_ticks = GET_TICKS; | ||
|
|
||
| while (true) { | ||
| u64 cpu_ticks = GET_TICKS; | ||
|
|
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| if (virtual_ticks < cpu_ticks) { | ||
| s_SpinLock.Acquire(); | ||
| struct vxt_step step = vxt_system_step(m_pSystem, SYSTEM_STEPS); | ||
| s_SpinLock.Release(); | ||
|
|
||
| if (step.err != VXT_NO_ERROR) | ||
| VXT_LOG(vxt_error_str(step.err)); | ||
| virtual_ticks += step.cycles; | ||
| } | ||
| } | ||
|
|
||
| VXT_LOG("Emulation loop ended!"); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // Copyright (c) 2019-2024 Andreas T Jonsson <mail@andreasjonsson.se> | ||
| // | ||
| // This software is provided 'as-is', without any express or implied | ||
| // warranty. In no event will the authors be held liable for any damages | ||
| // arising from the use of this software. | ||
| // | ||
| // Permission is granted to anyone to use this software for any purpose, | ||
| // including commercial applications, and to alter it and redistribute it | ||
| // freely, subject to the following restrictions: | ||
| // | ||
| // 1. The origin of this software must not be misrepresented; you must not | ||
| // claim that you wrote the original software. If you use this software | ||
| // in a product, an acknowledgment in the product documentation would be | ||
| // appreciated but is not required. | ||
| // | ||
| // 2. Altered source versions must be plainly marked as such, and must not be | ||
| // misrepresented as being the original software. | ||
| // | ||
| // 3. This notice may not be removed or altered from any source | ||
| // distribution. | ||
|
|
||
| #include "kernel.h" | ||
|
|
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| #ifndef _EMULOOP_H_ | ||
| #define _EMULOOP_H_ | ||
|
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| #include <circle/multicore.h> | ||
| #include <circle/memory.h> | ||
| #include <circle/types.h> | ||
|
|
||
| class CEmuLoop : public CMultiCoreSupport | ||
| { | ||
| public: | ||
| CEmuLoop(CMemorySystem *mem, vxt_system *s); | ||
| ~CEmuLoop(void); | ||
|
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| void Run(unsigned nCore); | ||
|
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| static CSpinLock s_SpinLock; | ||
|
|
||
| private: | ||
| vxt_system *m_pSystem; | ||
| }; | ||
|
|
||
| #endif |
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