karthikmurakonda
2 years ago
14 changed files with 195 additions and 101 deletions
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.data |
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n:x5x5x5 |
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59 |
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.text |
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main: |
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load %x0, $n, %x3 |
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addi %x4, 2, %x4 |
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forloop: |
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div %x3, %x4, %x6 |
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beq %x31, %x7, nonprime |
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addi %x4, 1, %x4 |
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blt %x4, %x3, forloop |
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prime: |
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addi %x5, 1, %x5 |
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end |
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nonprime: |
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subi %x5, 1, %x5 |
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end |
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Subproject commit f483ee2c38c1a35be3533c9433f7375235295d10 |
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<?xml version="1.0" encoding="UTF-8" standalone="no"?> |
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<!-- WARNING: Eclipse auto-generated file. |
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Any modifications will be overwritten. |
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To include a user specific buildfile here, simply create one in the same |
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directory with the processing instruction <?eclipse.ant.import?> |
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as the first entry and export the buildfile again. --><project basedir="." default="build"> |
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<property environment="env"/> |
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<property name="debuglevel" value="source,lines,vars"/> |
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<property name="target" value="1.8"/> |
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<property name="source" value="1.8"/> |
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<target name="init"> |
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<mkdir dir="bin"/> |
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<copy includeemptydirs="false" todir="bin"> |
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<fileset dir="src"> |
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<exclude name="**/*.launch"/> |
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<exclude name="**/*.java"/> |
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</fileset> |
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</copy> |
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</target> |
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<target name="clean"> |
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<delete dir="bin"/> |
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</target> |
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<target depends="clean" name="cleanall"/> |
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<target depends="build-subprojects,build-project" name="build"/> |
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<target name="build-subprojects"/> |
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<target depends="init" name="build-project"> |
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<javac debug="true" debuglevel="${debuglevel}" destdir="bin" includeantruntime="false" source="${source}" target="${target}"> |
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<src path="src"/> |
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</javac> |
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</target> |
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<target name="make-jar" depends="build"> |
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<mkdir dir="jars"/> |
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<jar destfile="jars/simulator.jar" basedir="bin"> |
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<manifest> |
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<attribute name="Main-Class" value="main.Main"/> |
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</manifest> |
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</jar> |
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</target> |
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</project> |
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<?xml version="1.0" encoding="UTF-8" standalone="no" ?> |
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<Configuration> |
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<FunctionalUnits> |
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<ALU> |
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<Count>2</Count> |
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<Latency>1</Latency> |
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<ReciprocalOfThroughput>1</ReciprocalOfThroughput> |
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</ALU> |
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<Multiplier> |
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<Count>1</Count> |
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<Latency>4</Latency> |
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<ReciprocalOfThroughput>1</ReciprocalOfThroughput> |
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</Multiplier> |
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<Divider> |
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<Count>1</Count> |
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<Latency>10</Latency> |
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<ReciprocalOfThroughput>1</ReciprocalOfThroughput> |
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</Divider> |
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</FunctionalUnits> |
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|
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<L1iCache> |
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<NumberOfLines>256</NumberOfLines> |
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<Latency>2</Latency> |
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<Associativity>4</Associativity> |
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<ReplacementPolicy>LRU</ReplacementPolicy> |
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</L1iCache> |
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|
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<L1dCache> |
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<NumberOfLines>256</NumberOfLines> |
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<Latency>2</Latency> |
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<Associativity>4</Associativity> |
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<ReplacementPolicy>LRU</ReplacementPolicy> |
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</L1dCache> |
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|
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<L2Cache> |
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<NumberOfLines>2048</NumberOfLines> |
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<Latency>10</Latency> |
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<Associativity>4</Associativity> |
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<ReplacementPolicy>LRU</ReplacementPolicy> |
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</L2Cache> |
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|
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<MainMemoryLatency>40</MainMemoryLatency> |
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</Configuration> |
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@ -1,4 +0,0 @@ |
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Number of instructions executed = 6 |
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Number of cycles taken = 252 |
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Number of data hazards = 7 |
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Number of control hazards = 0 |
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@ -1,4 +1,4 @@ |
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Number of instructions executed = 263 |
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Number of cycles taken = 13761 |
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Number of data hazards = 203 |
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Number of control hazards = 164 |
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Number of instructions executed = 5 |
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Number of cycles taken = 224 |
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Number of data hazards = 5 |
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Number of control hazards = 0 |
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|
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package processor.memorysystem; |
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|
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import generic.*; |
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import processor.*; |
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import configuration.Configuration; |
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public class Cache implements Element { |
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boolean isPresent = true; |
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public int latency; |
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Processor containingProcessor; |
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int cache_size, miss_addr, line_size; |
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CacheLine[] cach; |
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int[] index; |
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public Cache(Processor containingProcessor, int latency, int cacheSize) { |
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this.latency = latency; |
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this.cache_size = cacheSize; |
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this.line_size = (int) (Math.log(this.cache_size / 8) / Math.log(2)); |
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this.containingProcessor = containingProcessor; |
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this.cach = new CacheLine[cache_size / 8]; |
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for (int i = 0; i < cache_size / 8; i++) |
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this.cach[i] = new CacheLine(); |
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} |
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private int[] getindextag(int addr){ |
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String a = Integer.toBinaryString(addr); |
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for (int i = 0; i < 32 - a.length(); i++) |
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a = "0" + a; |
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int add_tag = Integer.parseInt(a.substring(0, a.length() - line_size), 2); |
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int temp_ind; |
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String ind = "0"; |
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if (line_size == 0) |
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temp_ind = 0; |
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else |
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for (int i = 0; i < line_size; i++) |
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ind = ind + "1"; |
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temp_ind = addr & Integer.parseInt(ind, 2); |
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return new int[]{temp_ind, add_tag}; |
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} |
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public int cacheRead(int address) { |
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int index, tag; |
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int[] temp = getindextag(address); |
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index = temp[0]; |
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tag = temp[1]; |
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if (tag == cach[index].tag[0]) { |
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cach[index].least_recently_used = 1; |
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isPresent = true; |
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return cach[index].data[0]; |
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} else if (tag == cach[index].tag[1]) { |
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cach[index].least_recently_used = 0; |
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isPresent = true; |
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return cach[index].data[1]; |
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} else { |
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isPresent = false; |
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return -1; |
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} |
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} |
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|
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public void WritetoCache(int address, int value) { |
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int index, tag; |
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int[] temp = getindextag(address); |
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index = temp[0]; |
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tag = temp[1]; |
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cach[index].setValue(tag, value); |
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} |
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@Override |
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public void handleEvent(Event source_event) { |
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if (source_event.getEventType() == Event.EventType.MemoryRead) { |
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System.out.println("handle event cache memory read"); |
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MemoryReadEvent handle_event = (MemoryReadEvent) source_event; |
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int data = cacheRead(handle_event.getAddressToReadFrom()); |
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if (isPresent == true) { |
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Simulator.getEventQueue().addEvent( |
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new MemoryResponseEvent( |
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Clock.getCurrentTime() + this.latency, |
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this, |
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handle_event.getRequestingElement(), |
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data)); |
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} else { |
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handle_event.setEventTime(Clock.getCurrentTime() + Configuration.mainMemoryLatency + 1); |
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this.miss_addr = handle_event.getAddressToReadFrom(); |
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Simulator.getEventQueue().addEvent(handle_event); |
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Simulator.getEventQueue().addEvent( |
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new MemoryReadEvent( |
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Clock.getCurrentTime() + Configuration.mainMemoryLatency, |
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this, |
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containingProcessor.getMainMemory(), |
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this.miss_addr) |
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); |
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} |
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} |
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else if (source_event.getEventType() == Event.EventType.MemoryWrite) { |
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MemoryWriteEvent handle_event = (MemoryWriteEvent) source_event; |
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WritetoCache(handle_event.getAddressToWriteTo(), handle_event.getValue()); |
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containingProcessor.getMainMemory().setWord(handle_event.getAddressToWriteTo(), handle_event.getValue()); |
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Simulator.getEventQueue().addEvent( |
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new ExecutionCompleteEvent( |
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Clock.getCurrentTime() + Configuration.mainMemoryLatency, |
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containingProcessor.getMainMemory(), |
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handle_event.getRequestingElement())); |
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|
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} |
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else if (source_event.getEventType() == Event.EventType.MemoryResponse) { |
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MemoryResponseEvent handle_event = (MemoryResponseEvent) source_event; |
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WritetoCache(this.miss_addr, handle_event.getValue()); |
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} |
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} |
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|
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} |
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@ -0,0 +1,30 @@ |
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package processor.memorysystem; |
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|
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|
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public class CacheLine{ |
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int[] tag = new int[2]; |
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int[] data = new int[2]; |
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int least_recently_used = 0; |
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public CacheLine() { |
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this.tag[0] = -1; |
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this.tag[1] = -1; |
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} |
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public void setValue(int tag, int value) { |
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if(tag == this.tag[0]) { |
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this.data[0] = value; |
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this.least_recently_used = 1; |
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} |
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else if(tag == this.tag[1]) { |
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this.data[1] = value; |
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this.least_recently_used = 0; |
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} |
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else { |
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this.tag[this.least_recently_used] = tag; |
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this.data[this.least_recently_used] = value; |
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this.least_recently_used = 1- this.least_recently_used; |
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} |
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} |
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|
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} |
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