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System: Implement CPU overclocking [SAVEVERSION+]

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Partial credit to @CookiePLMonster as well.
This commit is contained in:
Connor McLaughlin
2020-09-29 23:29:28 +10:00
parent 8f9f039665
commit 27697d0508
19 changed files with 249 additions and 36 deletions
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30
src/core/settings.cpp
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@ -5,6 +5,7 @@
#include "host_interface.h"
#include <algorithm>
#include <array>
#include <numeric>
Settings g_settings;
@ -75,6 +76,28 @@ bool Settings::HasAnyPerGameMemoryCards() const
});
}
void Settings::CPUOverclockPercentToFraction(u32 percent, u32* numerator, u32* denominator)
{
const u32 percent_gcd = std::gcd(percent, 100);
*numerator = percent / percent_gcd;
*denominator = 100u / percent_gcd;
}
u32 Settings::CPUOverclockFractionToPercent(u32 numerator, u32 denominator)
{
return (numerator * 100u) / denominator;
}
void Settings::SetCPUOverclockPercent(u32 percent)
{
CPUOverclockPercentToFraction(percent, &cpu_overclock_numerator, &cpu_overclock_denominator);
}
u32 Settings::GetCPUOverclockPercent() const
{
return CPUOverclockFractionToPercent(cpu_overclock_numerator, cpu_overclock_denominator);
}
void Settings::Load(SettingsInterface& si)
{
region =
@ -95,6 +118,10 @@ void Settings::Load(SettingsInterface& si)
ParseCPUExecutionMode(
si.GetStringValue("CPU", "ExecutionMode", GetCPUExecutionModeName(DEFAULT_CPU_EXECUTION_MODE)).c_str())
.value_or(DEFAULT_CPU_EXECUTION_MODE);
cpu_overclock_numerator = std::max(si.GetIntValue("CPU", "OverclockNumerator", 1), 1);
cpu_overclock_denominator = std::max(si.GetIntValue("CPU", "OverclockDenominator", 1), 1);
cpu_overclock_enable = si.GetBoolValue("CPU", "OverclockEnable", false);
cpu_overclock_active = (cpu_overclock_enable && (cpu_overclock_numerator != 1 || cpu_overclock_denominator != 1));
cpu_recompiler_memory_exceptions = si.GetBoolValue("CPU", "RecompilerMemoryExceptions", false);
cpu_recompiler_icache = si.GetBoolValue("CPU", "RecompilerICache", false);
@ -218,6 +245,9 @@ void Settings::Save(SettingsInterface& si) const
si.SetBoolValue("Main", "AutoLoadCheats", auto_load_cheats);
si.SetStringValue("CPU", "ExecutionMode", GetCPUExecutionModeName(cpu_execution_mode));
si.SetBoolValue("CPU", "OverclockEnable", cpu_overclock_enable);
si.SetIntValue("CPU", "OverclockNumerator", cpu_overclock_numerator);
si.SetIntValue("CPU", "OverclockDenominator", cpu_overclock_denominator);
si.SetBoolValue("CPU", "RecompilerMemoryExceptions", cpu_recompiler_memory_exceptions);
si.SetBoolValue("CPU", "RecompilerICache", cpu_recompiler_icache);