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package com.rox.debug.cpu; |
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import com.rox.cpu.mos6502.MOS6502Snapshot; |
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import java.util.LinkedHashSet; |
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import java.util.Set; |
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/** |
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* Which registers and flags changed at the most recent change - kept until the next one, so while paused |
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* a step's changes stay visible across refreshes instead of clearing on the next identical read. |
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* Names: {@code PC}, {@code A}, {@code X}, {@code Y}, {@code SP}, and flag letters {@code N V B D I Z C}. |
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*/ |
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public final class RegisterChanges { |
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private MOS6502Snapshot previous; |
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private Set<String> lastChanged = Set.of(); |
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/** @return what differs from the last different state seen (nothing on the first call) */ |
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public Set<String> update(final MOS6502Snapshot current){ |
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1
1. update : negated conditional → KILLED
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if (previous != null){ |
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final Set<String> changed = diff(previous, current); |
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//an untracked change (IRQ line, NMI latch) alone keeps the last highlights rather than clearing them |
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1
1. update : negated conditional → KILLED
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if (!changed.isEmpty()){ |
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lastChanged = Set.copyOf(changed); |
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} |
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} |
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previous = current; |
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1
1. update : replaced return value with Collections.emptySet for com/rox/debug/cpu/RegisterChanges::update → KILLED
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return lastChanged; |
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} |
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private static Set<String> diff(final MOS6502Snapshot before, final MOS6502Snapshot after){ |
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final Set<String> changed = new LinkedHashSet<>(); |
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2
1. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2. diff : negated conditional → KILLED
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addIf(changed, before.pc() != after.pc(), "PC"); |
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2
1. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2. diff : negated conditional → KILLED
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addIf(changed, before.a() != after.a(), "A"); |
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34
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2
1. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2. diff : negated conditional → KILLED
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addIf(changed, before.x() != after.x(), "X"); |
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35
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2
1. diff : negated conditional → KILLED
2. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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addIf(changed, before.y() != after.y(), "Y"); |
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2
1. diff : negated conditional → KILLED
2. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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addIf(changed, before.stackPointer() != after.stackPointer(), "SP"); |
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2
1. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2. diff : negated conditional → KILLED
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addIf(changed, before.negative() != after.negative(), "N"); |
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2
1. diff : negated conditional → KILLED
2. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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addIf(changed, before.signedOverflow() != after.signedOverflow(), "V"); |
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2
1. diff : negated conditional → KILLED
2. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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addIf(changed, before.breakFlag() != after.breakFlag(), "B"); |
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2
1. diff : negated conditional → KILLED
2. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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addIf(changed, before.decimal() != after.decimal(), "D"); |
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2
1. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2. diff : negated conditional → KILLED
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addIf(changed, before.interruptDisable() != after.interruptDisable(), "I"); |
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2
1. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2. diff : negated conditional → KILLED
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addIf(changed, before.zero() != after.zero(), "Z"); |
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2
1. diff : negated conditional → KILLED
2. diff : removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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addIf(changed, before.carry() != after.carry(), "C"); |
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1. diff : replaced return value with Collections.emptySet for com/rox/debug/cpu/RegisterChanges::diff → KILLED
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return changed; |
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} |
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private static void addIf(final Set<String> changed, final boolean differs, final String name){ |
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1. addIf : negated conditional → KILLED
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if (differs){ |
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changed.add(name); |
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} |
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} |
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} |
| | Mutations |
| 19 |
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1.1
Location : update
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:nothingHasChangedOnTheFirstLook()] negated conditional → KILLED
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| 22 |
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1.1
Location : update
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 27 |
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1.1
Location : update
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] replaced return value with Collections.emptySet for com/rox/debug/cpu/RegisterChanges::update → KILLED
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| 32 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 33 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 34 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedRegister()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 35 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedRegister()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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| 36 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedRegister()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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| 37 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 38 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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| 39 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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| 40 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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| 41 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 42 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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| 43 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
2.2
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:reportsEachChangedFlag()] removed call to com/rox/debug/cpu/RegisterChanges::addIf → KILLED
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| 44 |
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1.1
Location : diff
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] replaced return value with Collections.emptySet for com/rox/debug/cpu/RegisterChanges::diff → KILLED
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| 48 |
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1.1
Location : addIf
Killed by : com.rox.debug.cpu.RegisterChangesTest.[engine:junit-jupiter]/[class:com.rox.debug.cpu.RegisterChangesTest]/[method:anUntrackedChangeAloneKeepsTheLastHighlights()] negated conditional → KILLED
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