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made it as a pipelined process except for data hazards

This commit is contained in:
karthikmurakonda 2022-10-07 01:37:49 +05:30
parent 16be400268
commit 3f38e8f432
11 changed files with 154 additions and 19 deletions
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3
.vscode/launch.json vendored
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@ -8,7 +8,8 @@
"type": "java", "type": "java",
"name": "Launch Current File", "name": "Launch Current File",
"request": "launch", "request": "launch",
"mainClass": "${file}" "mainClass": "${file}",
"args": ["assignment-4/src/configuration/config.xml", "assignment-4/src/hello.txt", "assignment-4/supporting_files/test_cases/evenorodd.out"]
}, },
{ {
"type": "java", "type": "java",

39
assignment-4/bin/build.xml Normal file
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@ -0,0 +1,39 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- WARNING: Eclipse auto-generated file.
Any modifications will be overwritten.
To include a user specific buildfile here, simply create one in the same
directory with the processing instruction <?eclipse.ant.import?>
as the first entry and export the buildfile again. --><project basedir="." default="build">
<property environment="env"/>
<property name="debuglevel" value="source,lines,vars"/>
<property name="target" value="1.8"/>
<property name="source" value="1.8"/>
<target name="init">
<mkdir dir="bin"/>
<copy includeemptydirs="false" todir="bin">
<fileset dir="src">
<exclude name="**/*.launch"/>
<exclude name="**/*.java"/>
</fileset>
</copy>
</target>
<target name="clean">
<delete dir="bin"/>
</target>
<target depends="clean" name="cleanall"/>
<target depends="build-subprojects,build-project" name="build"/>
<target name="build-subprojects"/>
<target depends="init" name="build-project">
<javac debug="true" debuglevel="${debuglevel}" destdir="bin" includeantruntime="false" source="${source}" target="${target}">
<src path="src"/>
</javac>
</target>
<target name="make-jar" depends="build">
<mkdir dir="jars"/>
<jar destfile="jars/simulator.jar" basedir="bin">
<manifest>
<attribute name="Main-Class" value="main.Main"/>
</manifest>
</jar>
</target>
</project>

43
assignment-4/bin/configuration/config.xml Normal file
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@ -0,0 +1,43 @@
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<Configuration>
<FunctionalUnits>
<ALU>
<Count>2</Count>
<Latency>1</Latency>
<ReciprocalOfThroughput>1</ReciprocalOfThroughput>
</ALU>
<Multiplier>
<Count>1</Count>
<Latency>4</Latency>
<ReciprocalOfThroughput>1</ReciprocalOfThroughput>
</Multiplier>
<Divider>
<Count>1</Count>
<Latency>10</Latency>
<ReciprocalOfThroughput>1</ReciprocalOfThroughput>
</Divider>
</FunctionalUnits>
<L1iCache>
<NumberOfLines>256</NumberOfLines>
<Latency>2</Latency>
<Associativity>4</Associativity>
<ReplacementPolicy>LRU</ReplacementPolicy>
</L1iCache>
<L1dCache>
<NumberOfLines>256</NumberOfLines>
<Latency>2</Latency>
<Associativity>4</Associativity>
<ReplacementPolicy>LRU</ReplacementPolicy>
</L1dCache>
<L2Cache>
<NumberOfLines>2048</NumberOfLines>
<Latency>10</Latency>
<Associativity>4</Associativity>
<ReplacementPolicy>LRU</ReplacementPolicy>
</L2Cache>
<MainMemoryLatency>40</MainMemoryLatency>
</Configuration>

2
assignment-4/bin/hello.txt Normal file
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@ -0,0 +1,2 @@
Number of instructions executed = 10
Number of cycles taken = 10

39
assignment-4/build.xml Executable file
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@ -0,0 +1,39 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- WARNING: Eclipse auto-generated file.
Any modifications will be overwritten.
To include a user specific buildfile here, simply create one in the same
directory with the processing instruction <?eclipse.ant.import?>
as the first entry and export the buildfile again. --><project basedir="." default="build">
<property environment="env"/>
<property name="debuglevel" value="source,lines,vars"/>
<property name="target" value="1.8"/>
<property name="source" value="1.8"/>
<target name="init">
<mkdir dir="bin"/>
<copy includeemptydirs="false" todir="bin">
<fileset dir="src">
<exclude name="**/*.launch"/>
<exclude name="**/*.java"/>
</fileset>
</copy>
</target>
<target name="clean">
<delete dir="bin"/>
</target>
<target depends="clean" name="cleanall"/>
<target depends="build-subprojects,build-project" name="build"/>
<target name="build-subprojects"/>
<target depends="init" name="build-project">
<javac debug="true" debuglevel="${debuglevel}" destdir="bin" includeantruntime="false" source="${source}" target="${target}">
<src path="src"/>
</javac>
</target>
<target name="make-jar" depends="build">
<mkdir dir="jars"/>
<jar destfile="jars/simulator.jar" basedir="bin">
<manifest>
<attribute name="Main-Class" value="main.Main"/>
</manifest>
</jar>
</target>
</project>

2
assignment-4/src/hello.txt Normal file
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@ -0,0 +1,2 @@
Number of instructions executed = 11
Number of cycles taken = 11

13
assignment-4/src/processor/pipeline/Execute.java
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@ -3,7 +3,6 @@ import processor.Processor;
import generic.Instruction; import generic.Instruction;
import generic.Instruction.OperationType; import generic.Instruction.OperationType;
import generic.Simulator;
import generic.Operand.OperandType; import generic.Operand.OperandType;
public class Execute { public class Execute {
@ -109,10 +108,11 @@ public class Execute {
{ {
if(op1 == op2) if(op1 == op2)
{ {
alu_result = cur_pc + imm;
EX_IF_Latch.setIF_enable(true); EX_IF_Latch.setIF_enable(true);
alu_result = cur_pc + imm;
EX_IF_Latch.setPC(alu_result); EX_IF_Latch.setPC(alu_result);
noma = true; noma = true;
containingProcessor.getOFUnit().setProceed(false);
} }
} }
break; break;
@ -136,9 +136,10 @@ public class Execute {
EX_IF_Latch.setIF_enable(true); EX_IF_Latch.setIF_enable(true);
EX_IF_Latch.setPC(alu_result); EX_IF_Latch.setPC(alu_result);
noma = true; noma = true;
System.out.println("hello world"); containingProcessor.getOFUnit().setProceed(false);
// System.out.println("hello world");
} }
System.out.println("hello world2"); // System.out.println("hello world2");
} }
break; break;
case bgt: case bgt:
@ -154,7 +155,8 @@ public class Execute {
break; break;
case end: case end:
{ {
Simulator.setSimulationComplete(true);
break;
} }
default: default:
break; break;
@ -169,7 +171,6 @@ public class Execute {
{ {
EX_MA_Latch.setMA_enable(true); EX_MA_Latch.setMA_enable(true);
} }
OF_EX_Latch.setEX_enable(false);
} }
} }
} }

9
assignment-4/src/processor/pipeline/InstructionFetch.java
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@ -21,19 +21,18 @@ public class InstructionFetch {
{ {
if(EX_IF_Latch.isIF_enable()){ if(EX_IF_Latch.isIF_enable()){
containingProcessor.getRegisterFile().setProgramCounter(EX_IF_Latch.getPC()-1); containingProcessor.getRegisterFile().setProgramCounter(EX_IF_Latch.getPC()-1);
EX_IF_Latch.setIF_enable(false);
System.out.println("IF: PC set to " + EX_IF_Latch.getPC()); System.out.println("IF: PC set to " + EX_IF_Latch.getPC());
} } // if EX_IF_Latch is enabled, set PC to EX_IF_Latch's PC and wait for next cycle (1 nop)
if(IF_EnableLatch.isIF_enable()|| EX_IF_Latch.isIF_enable()) else if(IF_EnableLatch.isIF_enable())
{ {
int currentPC = containingProcessor.getRegisterFile().getProgramCounter(); int currentPC = containingProcessor.getRegisterFile().getProgramCounter();
int newInstruction = containingProcessor.getMainMemory().getWord(currentPC); int newInstruction = containingProcessor.getMainMemory().getWord(currentPC);
IF_OF_Latch.setInstruction(newInstruction); IF_OF_Latch.setInstruction(newInstruction);
containingProcessor.getRegisterFile().setProgramCounter(currentPC + 1); containingProcessor.getRegisterFile().setProgramCounter(currentPC + 1);
IF_EnableLatch.setIF_enable(false); IF_EnableLatch.setIF_enable(true);
IF_OF_Latch.setOF_enable(true); IF_OF_Latch.setOF_enable(true);
EX_IF_Latch.setIF_enable(false);
} }
} }

1
assignment-4/src/processor/pipeline/MemoryAccess.java
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@ -37,7 +37,6 @@ public class MemoryAccess {
} }
MA_RW_Latch.setInstruction(instruction); MA_RW_Latch.setInstruction(instruction);
MA_RW_Latch.setRW_enable(true); MA_RW_Latch.setRW_enable(true);
EX_MA_Latch.setMA_enable(false);
} }
} }

21
assignment-4/src/processor/pipeline/OperandFetch.java
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@ -13,12 +13,14 @@ public class OperandFetch {
IF_OF_LatchType IF_OF_Latch; IF_OF_LatchType IF_OF_Latch;
OF_EX_LatchType OF_EX_Latch; OF_EX_LatchType OF_EX_Latch;
static OperationType[] opTypes = OperationType.values(); static OperationType[] opTypes = OperationType.values();
boolean Proceed;
public OperandFetch(Processor containingProcessor, IF_OF_LatchType iF_OF_Latch, OF_EX_LatchType oF_EX_Latch) public OperandFetch(Processor containingProcessor, IF_OF_LatchType iF_OF_Latch, OF_EX_LatchType oF_EX_Latch)
{ {
this.containingProcessor = containingProcessor; this.containingProcessor = containingProcessor;
this.IF_OF_Latch = iF_OF_Latch; this.IF_OF_Latch = iF_OF_Latch;
this.OF_EX_Latch = oF_EX_Latch; this.OF_EX_Latch = oF_EX_Latch;
Proceed = true;
} }
public static int twoscompliment(String s) { public static int twoscompliment(String s) {
@ -38,12 +40,12 @@ public class OperandFetch {
public void performOF() public void performOF()
{ {
if(IF_OF_Latch.isOF_enable()) if(IF_OF_Latch.isOF_enable() && Proceed)
{ {
int instruction = IF_OF_Latch.getInstruction(); int instruction = IF_OF_Latch.getInstruction();
Instruction instr = new Instruction(); Instruction instr = new Instruction();
String bin_instr = Integer.toBinaryString(instruction); String bin_instr = Integer.toBinaryString(instruction);
if (bin_instr.length() < 32) { // TODO: check if this is correct if (bin_instr.length() < 32) {
int diff = 32 - bin_instr.length(); int diff = 32 - bin_instr.length();
String zeros = ""; String zeros = "";
for (int i = 0; i < diff; i++) { for (int i = 0; i < diff; i++) {
@ -91,7 +93,7 @@ public class OperandFetch {
rs1.setValue(Integer.parseInt(bin_instr.substring(5, 10), 2)); rs1.setValue(Integer.parseInt(bin_instr.substring(5, 10), 2));
rd.setValue(Integer.parseInt(bin_instr.substring(10, 15), 2)); rd.setValue(Integer.parseInt(bin_instr.substring(10, 15), 2));
// check 15th bit to see if it is negative // check 15th bit to see if it is negative
int imm = Integer.parseInt(bin_instr.substring(15, 32), 2); // TODO: 2's complement int imm = Integer.parseInt(bin_instr.substring(15, 32), 2);
if (bin_instr.charAt(15)=='1'){ if (bin_instr.charAt(15)=='1'){
imm = -1*twoscompliment(bin_instr.substring(15, 32)); imm = -1*twoscompliment(bin_instr.substring(15, 32));
System.out.println(bin_instr); System.out.println(bin_instr);
@ -118,7 +120,7 @@ public class OperandFetch {
instr.setDestinationOperand(rd); instr.setDestinationOperand(rd);
int imm = Integer.parseInt(bin_instr.substring(10, 32), 2); // TODO: 2's complement int imm = Integer.parseInt(bin_instr.substring(10, 32), 2);
if (bin_instr.charAt(10)=='1'){ if (bin_instr.charAt(10)=='1'){
imm = -1*twoscompliment(bin_instr.substring(10, 32)); imm = -1*twoscompliment(bin_instr.substring(10, 32));
System.out.println(bin_instr); System.out.println(bin_instr);
@ -149,9 +151,18 @@ public class OperandFetch {
} }
} }
IF_OF_Latch.setOF_enable(false);
OF_EX_Latch.setEX_enable(true); OF_EX_Latch.setEX_enable(true);
} }
else if (!Proceed) {
Proceed = true;
}
}
public void setProceed(boolean proceed) {
Proceed = proceed;
if (!Proceed) {
OF_EX_Latch.setEX_enable(false);
}
} }
} }

1
assignment-4/src/processor/pipeline/RegisterWrite.java
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@ -44,7 +44,6 @@ public class RegisterWrite {
containingProcessor.getRegisterFile().setValue(rd, alu_result); containingProcessor.getRegisterFile().setValue(rd, alu_result);
} }
} }
MA_RW_Latch.setRW_enable(false);
IF_EnableLatch.setIF_enable(true); IF_EnableLatch.setIF_enable(true);
} }
} }