#include <BlocksALU.hh>

Inheritance diagram for BlocksALU:

Collaboration diagram for BlocksALU:

Public Member Functions
	BlocksALU (TTAMachine::Machine &mach, const std::string &name, std::list< std::string > sources, std::shared_ptr< TTAMachine::Socket > in1sock, std::shared_ptr< TTAMachine::Socket > in2sock)

	~BlocksALU ()

Public Attributes
TTAMachine::FunctionUnit *	alu

Public Attributes inherited from BlocksFU
std::vector< TTAMachine::HWOperation * >	ops

TTAMachine::FunctionUnit *	fu

TTAMachine::FUPort *	in1

TTAMachine::FUPort *	in2

TTAMachine::FUPort *	out

std::shared_ptr< TTAMachine::Socket >	in1sock

std::shared_ptr< TTAMachine::Socket >	in2sock

TTAMachine::Socket *	outsock

std::list< std::string >	sources

std::string	name

Private Member Functions
void	ConfigurePipeline (TTAMachine::ExecutionPipeline *pipeline, int numOfOperands)

void	BindPorts (TTAMachine::HWOperation *hwOp, int numOfOperands)

TTAMachine::HWOperation *	CreateHWOp (const std::string &name, int numOfOperands)

Additional Inherited Members
Protected Member Functions inherited from BlocksFU
	BlocksFU (TTAMachine::Machine &mach, const std::string &name, std::list< std::string > sources, std::shared_ptr< TTAMachine::Socket > in1sock, std::shared_ptr< TTAMachine::Socket > in2sock)

	~BlocksFU ()

Detailed Description

Definition at line 39 of file BlocksALU.hh.

Constructor & Destructor Documentation

◆ BlocksALU()

BlocksALU::BlocksALU	(	TTAMachine::Machine &	mach,
		const std::string &	name,
		std::list< std::string >	sources,
		std::shared_ptr< TTAMachine::Socket >	in1sock,
		std::shared_ptr< TTAMachine::Socket >	in2sock
	)

Create BlocksALU with default instructions

Parameters

mach	The TTA machine where the ALU needs to be added.
name	The name of the ALU.
sources	A list of sources that are attached to this unit's input.
in1sock	(shared) pointer to the TTA socket for in1 input port.
in2sock	(shared) pointer to the TTA socket for in2 input port.

Definition at line 47 of file BlocksALU.cc.

    : BlocksFU::BlocksFU(mach, name, sources, in1sock, in2sock) {
    // Function unit and ports
    alu = this->fu;
 
    // HW ops
    ops.push_back(CreateHWOp("add", 3));
    ops.push_back(CreateHWOp("and", 3));
    ops.push_back(CreateHWOp("eq", 3));
    ops.push_back(CreateHWOp("ge", 3));
    ops.push_back(CreateHWOp("geu", 3));
    ops.push_back(CreateHWOp("gt", 3));
    ops.push_back(CreateHWOp("gtu", 3));
    ops.push_back(CreateHWOp("ior", 3));
    ops.push_back(CreateHWOp("lt", 3));
    ops.push_back(CreateHWOp("ltu", 3));
    ops.push_back(CreateHWOp("ne", 3));
    ops.push_back(CreateHWOp("not", 2));
    ops.push_back(CreateHWOp("shl1_32", 2));
    ops.push_back(CreateHWOp("shl4_32", 2));
    ops.push_back(CreateHWOp("shr1_32", 2));
    ops.push_back(CreateHWOp("shr4_32", 2));
    ops.push_back(CreateHWOp("shru1_32", 2));
    ops.push_back(CreateHWOp("shru4_32", 2));
    ops.push_back(CreateHWOp("sub", 3));
    ops.push_back(CreateHWOp("xor", 3));
    ops.push_back(CreateHWOp("copy", 2));
}

References alu, CreateHWOp(), BlocksFU::fu, and BlocksFU::ops.

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◆ ~BlocksALU()

BlocksALU::~BlocksALU ( )

inline

Definition at line 47 of file BlocksALU.hh.

                 {
        while (!ops.empty()) {
            delete ops.back();
            ops.pop_back();
        }
    }

References BlocksFU::ops.

Member Function Documentation

◆ BindPorts()

void BlocksALU::BindPorts	(	TTAMachine::HWOperation *	hwOp,
		int	numOfOperands
	)

private

Bind the operation's operands to FU ports.

Parameters

hwOp	A pointer to the hardware operation of which the operands need to be binded to FU ports.
numOfOperands	The number of operands of the given hwOp.

Definition at line 130 of file BlocksALU.cc.

                                                         {
    if (numOfOperands == 2) {
        hwOp->bindPort(1, *in1);
        hwOp->bindPort(2, *out);
    } else if (numOfOperands == 3) {
        hwOp->bindPort(1, *in1);
        hwOp->bindPort(2, *in2);
        hwOp->bindPort(3, *out);
    } else {
        // Currently no operation known that uses a different numbers of
        // operands.
        assert(
            false &&
            "Trying to add an ALU operation with a different number of "
            "operands than 2 or 3.");
    }
}

References assert, TTAMachine::HWOperation::bindPort(), BlocksFU::in1, BlocksFU::in2, and BlocksFU::out.

Referenced by CreateHWOp().

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◆ ConfigurePipeline()

void BlocksALU::ConfigurePipeline	(	TTAMachine::ExecutionPipeline *	pipeline,
		int	numOfOperands
	)

private

Configure the operation pipeline.

Parameters

pipeline	A pointer to the execution pipeline of the operation of which the pipeline needs to be configured.
numOfOperands	The number of operands of the given hwOp.

Definition at line 156 of file BlocksALU.cc.

                                                                           {
    if (numOfOperands < 3) {
        pipeline->addPortRead(1, 0, 1);
        pipeline->addPortWrite(2, 0, 1);
    } else {
        pipeline->addPortRead(1, 0, 1);
        pipeline->addPortRead(2, 0, 1);
        pipeline->addPortWrite(3, 0, 1);
    }
}

References TTAMachine::ExecutionPipeline::addPortRead(), and TTAMachine::ExecutionPipeline::addPortWrite().

Referenced by CreateHWOp().

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◆ CreateHWOp()

HWOperation * BlocksALU::CreateHWOp	(	const std::string &	name,
		int	numOfOperands
	)

private

Creates a hardware operation.

Parameters

name	The name of the hardware operation. This needs to exactly match the name in OSEd.
numOfOperands	The number of operands that this hardware operation requires.

Definition at line 115 of file BlocksALU.cc.

                                                              {
    HWOperation* op = new HWOperation(name, *alu);
    BindPorts(op, numOfOperands);
    ConfigurePipeline(op->pipeline(), numOfOperands);
    return op;
}