A simple system, that implements the etiss::System interface. More...

#include <System.h>

Inheritance diagram for etiss::SimpleSystem:

Collaboration diagram for etiss::SimpleSystem:

Public Member Functions
virtual	~SimpleSystem ()

virtual etiss::int32	iread (ETISS_CPU *cpu, etiss::uint64 addr, etiss::uint32 len)
	Instruction read operation. More...

virtual etiss::int32	iwrite (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)
	Instruction write operation. More...

virtual etiss::int32	dread (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)
	Data read operation. More...

virtual etiss::int32	dwrite (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)
	Data write operation. More...

virtual etiss::int32	dbg_read (etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len)
	Debug read operation. More...

virtual etiss::int32	dbg_write (etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len)
	Debug write operation. More...

virtual void	syncTime (ETISS_CPU *cpu)
	Synchronize simulation time. More...

virtual bool	read (bool debug, ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)=0

virtual bool	write (bool debug, ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)=0

Public Member Functions inherited from etiss::System
virtual	~System ()

Detailed Description

A simple system, that implements the etiss::System interface.

Definition at line 220 of file System.h.

Constructor & Destructor Documentation

◆ ~SimpleSystem()

virtual etiss::SimpleSystem::~SimpleSystem ( )

inlinevirtual

Definition at line 223 of file System.h.

Member Function Documentation

◆ dbg_read()

etiss::int32 etiss::SimpleSystem::dbg_read	(	etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Debug read operation.

This method should implement a debug read operation. The debug operations are used for data access that should not influence the simulation time. To indicate an error a non 0 value should be returned.

Note: The read debug operation is used for the instruction fetches required for generating the code blocks.

Parameters

addr	The address from which the data should be read.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 161 of file System.cpp.

References read().

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◆ dbg_write()

etiss::int32 etiss::SimpleSystem::dbg_write	(	etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Debug write operation.

This method should implement a debug write operation. The debug operations are used for data access that should not influence the simulation time. To indicate an error a non 0 value should be returned.

Parameters

addr	The address to which the data should be written.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred

Implements etiss::System.

Definition at line 168 of file System.cpp.

References write().

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◆ dread()

etiss::int32 etiss::SimpleSystem::dread	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Data read operation.

This method should implement a data read operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address from which the data should be read.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 147 of file System.cpp.

References read().

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◆ dwrite()

etiss::int32 etiss::SimpleSystem::dwrite	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Data write operation.

This method should implement a data write operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address to which the data should be written.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 154 of file System.cpp.

References write().

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◆ iread()

etiss::int32 etiss::SimpleSystem::iread	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint32	len
	)

virtual

Instruction read operation.

This method should implement an instruction read operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Note: Normally this method can be implemented as an empty method that only returns an error value. Because of the translating nature of ETISS all instruction operations are out of order an will be performed via the debug interface.

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address from which the instruction should be read.
len	The length of the instruction in bytes.

Returns: 0 if no error occurred

Implements etiss::System.

Definition at line 132 of file System.cpp.

◆ iwrite()

etiss::int32 etiss::SimpleSystem::iwrite	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Instruction write operation.

This method should implement an instruction write operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Note: Normally this method can be implemented as an empty method that only returns an error value. Because of the translating nature of ETISS all instruction operations are out of order an will be performed via the debug interface

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address to which the instruction should be written.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the instruction in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 140 of file System.cpp.

References write().

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◆ read()

virtual bool etiss::SimpleSystem::read	(	bool	debug,
		ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

pure virtual

Implemented in etiss::plugin::VirtualStructMemory.

Referenced by dbg_read(), and dread().

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◆ syncTime()

void etiss::SimpleSystem::syncTime ( ETISS_CPU * cpu )

virtual

Synchronize simulation time.

This method should implement the synchronization between the simulation time of the system and the CPU. This function call should allow the system to catch up with the CPU.

See also: etiss::ETISS_CPU

Parameters

cpu	Pointer to the CPU structure, for which the synchronization should be performed.

Implements etiss::System.

Definition at line 175 of file System.cpp.

◆ write()

virtual bool etiss::SimpleSystem::write	(	bool	debug,
		ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

pure virtual

Implemented in etiss::plugin::VirtualStructMemory.

Referenced by dbg_write(), dwrite(), and iwrite().

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The documentation for this class was generated from the following files:

/home/runner/work/etiss/etiss/include/etiss/System.h
/home/runner/work/etiss/etiss/src/System.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ~SimpleSystem()

Member Function Documentation

◆ dbg_read()

◆ dbg_write()

◆ dread()

◆ dwrite()

◆ iread()

◆ iwrite()

◆ read()

◆ syncTime()

◆ write()