feat(cpu): add A1/A2/A3 address cycle timing and fix pin propagation

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/rusty_emu.iml" filepath="$PROJECT_DIR$/.idea/rusty_emu.iml" />
+    </modules>
+  </component>
+</project>

.idea/runConfigurations/Terminal_Debug.xml

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+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Terminal Debug" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
+    <option name="buildProfileId" value="dev" />
+    <option name="command" value="run --package rusty_emu --bin rusty_emu" />
+    <option name="workingDirectory" value="file://$PROJECT_DIR$" />
+    <envs />
+    <option name="emulateTerminal" value="false" />
+    <option name="channel" value="DEFAULT" />
+    <option name="requiredFeatures" value="true" />
+    <option name="allFeatures" value="true" />
+    <option name="withSudo" value="false" />
+    <option name="buildTarget" value="REMOTE" />
+    <option name="backtrace" value="SHORT" />
+    <option name="isRedirectInput" value="false" />
+    <option name="redirectInputPath" value="" />
+    <method v="2" />
+  </configuration>
+</component>

.idea/runConfigurations/gui/Console_Debug.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Console Debug" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
+    <option name="channel" value="DEFAULT" />
+    <option name="command" value="run --package rusty_emu --bin rusty_emu" />
+    <option name="env">
+      <map />
+    </option>
+    <option name="is_redirect_input" value="false" />
+    <option name="is_redirect_input_value" value="" />
+    <option name="redirect_input_path" value="" />
+    <option name="workingDirectory" value="$PROJECT_DIR$" />
+    <option name="with_sudo" value="false" />
+    <option name="cargoArguments" value="-- --console --system basic" />
+    <method v="2">
+      <option name="RunConfigurationTask" enabled="true" run_configuration_name="Console Debug" run_configuration_type="CargoCommandRunConfiguration" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/gui/GUI_Debug.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="GUI Debug" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
+    <option name="channel" value="DEFAULT" />
+    <option name="command" value="run --package rusty_emu --bin rusty_emu" />
+    <option name="env">
+      <map />
+    </option>
+    <option name="is_redirect_input" value="false" />
+    <option name="is_redirect_input_value" value="" />
+    <option name="redirect_input_path" value="" />
+    <option name="workingDirectory" value="$PROJECT_DIR$" />
+    <option name="with_sudo" value="false" />
+    <option name="cargoArguments" value="-- --gui --system basic" />
+    <method v="2">
+      <option name="RunConfigurationTask" enabled="true" run_configuration_name="GUI Debug" run_configuration_type="CargoCommandRunConfiguration" />
+    </method>
+  </configuration>
+</component>

.idea/rusty_emu.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="EMPTY_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/tests" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>