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Clarify clock rates.

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This commit is contained in:
Thomas Harte 2024-12-17 07:08:04 -05:00
parent 15583e7975
commit c8fdde4c5e
2 changed files with 5 additions and 6 deletions
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9
Machines/Commodore/Plus4/Plus4.cpp
View File

@ -98,6 +98,9 @@ private:
Interrupts &interrupts_;
};
static constexpr auto NTSCclock = 14'318'180; // i.e. colour subcarrier * 4.
static constexpr auto PALclock = 17'734'448; // i.e. very close to colour subcarrier * 4 — only about 0.1% off.
class ConcreteMachine:
public BusController,
public CPU::MOS6502::BusHandler,
@ -113,11 +116,7 @@ public:
timers_(interrupts_),
video_(map_, interrupts_)
{
// PAL: 17,734,480 Mhz divided by 5 or 4?
// NTSC: 14,318,180 Mhz
// i.e. colour subcarriers multiplied by two?
set_clock_rate(17'734'480);
set_clock_rate(PALclock);
const auto kernel = ROM::Name::Plus4KernelPALv5;
const auto basic = ROM::Name::Plus4BASIC;

2
OSBindings/Mac/Clock Signal.xcodeproj/xcshareddata/xcschemes/Clock Signal.xcscheme
View File

@ -23,7 +23,7 @@
</BuildActionEntries>
</BuildAction>
<TestAction
buildConfiguration = "Debug"
buildConfiguration = "Release"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
shouldUseLaunchSchemeArgsEnv = "YES"