vm

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 Go to latest Published: May 5, 2022 License: Apache-2.0 Imports: 9 Imported by: 1

README

Virtual Machine

Processor

  • 64bit RISC Architecture
  • Barrel Design
  • 8 Cores per Processor
  • 8 Contexts per Core
  • 8-Stage Pipeline
    • Fetch Instruction
    • Load Instruction
    • Decode Instruction
    • Load Data
    • Execute Operation
    • Format Data
    • Store Data
    • Retire Instruction
  • 32 Registers per Context
    • r0 : r15 - Special Purpose
    • r16 : r31 - General Purpose

Cache

  • 8 x 256KB L1 Instruction (1 per Core)
  • 8 x 256KB L1 Data (1 per Core)
  • 1 x 8MB L2 (1 shared between 8 Cores)

Memory

  • 1GB

IO Devices

  • Storage
  • Display
  • Keyboard

Documentation

Index

Constants

View Source 
const (
	ReadCommand       = flamego.MemoryOperation(3)
	ReadDeviceAddress = flamego.MemoryOperation(4)
	ReadMemoryAddress = flamego.MemoryOperation(5)
)
View Source 
const PixelBytes = 4

Variables

This section is empty.

Functions

This section is empty.

Types

type Bus 

type Bus struct {
	// contains filtered or unexported fields
}

func NewBus 

func NewBus(size int) *Bus

func (*Bus) Data 

func (b *Bus) Data() []byte

func (*Bus) IsDirty 

func (b *Bus) IsDirty(offset int) bool

func (*Bus) IsValid 

func (b *Bus) IsValid(offset int) bool

func (*Bus) Read 

func (b *Bus) Read(offset int) byte

func (*Bus) ReadFrom 

func (b *Bus) ReadFrom(bus flamego.Bus)

func (*Bus) SetDirty 

func (b *Bus) SetDirty(offset int, dirty bool)

func (*Bus) SetValid 

func (b *Bus) SetValid(offset int, valid bool)

func (*Bus) Size 

func (b *Bus) Size() int

func (*Bus) Write 

func (b *Bus) Write(offset int, value byte)

func (*Bus) WriteTo 

func (b *Bus) WriteTo(bus flamego.Bus, offset int)

type Cache 

type Cache struct {
	// contains filtered or unexported fields
}

func NewCache 

func NewCache(size, lineWidth, busWidth, offsetBits int, lower flamego.Store) *Cache

func NewL1Cache 

func NewL1Cache(size int, lower flamego.Store) *Cache

func NewL2Cache 

func NewL2Cache(size int, lower flamego.Store) *Cache

func NewL3Cache 

func NewL3Cache(size int, lower flamego.Store) *Cache

func (*Cache) Address 

func (c *Cache) Address() uint64

func (*Cache) Bus 

func (c *Cache) Bus() flamego.Bus

func (*Cache) Clear 

func (c *Cache) Clear(address uint64)

func (*Cache) Clock 

func (c *Cache) Clock(cycle int)

func (*Cache) CreateAddress 

func (c *Cache) CreateAddress(tag, index, offset uint64) uint64

func (*Cache) Flush 

func (c *Cache) Flush(address uint64)

func (*Cache) Free 

func (c *Cache) Free()

func (*Cache) IndexBits 

func (c *Cache) IndexBits() int

func (*Cache) IsBusy 

func (c *Cache) IsBusy() bool

func (*Cache) IsFree 

func (c *Cache) IsFree() bool

func (*Cache) IsSuccessful 

func (c *Cache) IsSuccessful() bool

func (*Cache) LineWidth 

func (c *Cache) LineWidth() int

func (*Cache) Lines 

func (c *Cache) Lines() []*CacheLine

func (*Cache) LowerAddress 

func (c *Cache) LowerAddress() uint64

func (*Cache) LowerOperation 

func (c *Cache) LowerOperation() flamego.CacheOperation

func (*Cache) OffsetBits 

func (c *Cache) OffsetBits() int

func (*Cache) Operation 

func (c *Cache) Operation() flamego.CacheOperation

func (*Cache) ParseAddress 

func (c *Cache) ParseAddress(a uint64) (uint64, uint64, uint64)

func (*Cache) Read 

func (c *Cache) Read(address uint64)

func (*Cache) Size 

func (c *Cache) Size() int

func (*Cache) TagBits 

func (c *Cache) TagBits() int

func (*Cache) Write 

func (c *Cache) Write(address uint64)

type CacheLine 

type CacheLine struct {
	Bus
	// contains filtered or unexported fields
}

func NewCacheLine 

func NewCacheLine(size int) *CacheLine

func (*CacheLine) Tag 

func (c *CacheLine) Tag() uint64

type Context 

type Context struct {
	// contains filtered or unexported fields
}

func NewContext 

func NewContext(id int, c *Core, l1ICache flamego.Cache, l1DCache flamego.Cache) *Context

func (*Context) AcquiredLock 

func (x *Context) AcquiredLock() bool

func (*Context) Core 

func (x *Context) Core() flamego.Core

func (*Context) DataCache 

func (x *Context) DataCache() flamego.Cache

func (*Context) DecodeInstruction 

func (x *Context) DecodeInstruction()

func (*Context) Error 

func (x *Context) Error(value flamego.InterruptValue)

func (*Context) ExecuteOperation 

func (x *Context) ExecuteOperation(a, b, c, d uint64) (uint64, uint64)

func (*Context) FetchInstruction 

func (x *Context) FetchInstruction()

func (*Context) FormatData 

func (x *Context) FormatData(e, f uint64) (uint64, uint64)

func (*Context) Id 

func (x *Context) Id() int

func (*Context) IncrementProgramCounter 

func (x *Context) IncrementProgramCounter()

func (*Context) Instruction 

func (x *Context) Instruction() flamego.Instruction

func (*Context) InstructionCache 

func (x *Context) InstructionCache() flamego.Cache

func (*Context) InstructionString 

func (x *Context) InstructionString() string

func (*Context) IsAligned 

func (x *Context) IsAligned() bool

func (*Context) IsAsleep 

func (x *Context) IsAsleep() bool

func (*Context) IsInterrupted 

func (x *Context) IsInterrupted() bool

func (*Context) IsRetrying 

func (x *Context) IsRetrying() bool

func (*Context) IsSignalled 

func (x *Context) IsSignalled() bool

func (*Context) IsValid 

func (x *Context) IsValid() bool

func (*Context) LoadData 

func (x *Context) LoadData() (uint64, uint64, uint64, uint64)

func (*Context) LoadInstruction 

func (x *Context) LoadInstruction()

func (*Context) NextInterrupt 

func (x *Context) NextInterrupt() flamego.InterruptValue

func (*Context) Opcode 

func (x *Context) Opcode() uint32

func (*Context) ReadRegister 

func (x *Context) ReadRegister(register flamego.Register) uint64

func (*Context) RequiresLock 

func (x *Context) RequiresLock() bool

func (*Context) RetireInstruction 

func (x *Context) RetireInstruction()

func (*Context) SetAcquiredLock 

func (x *Context) SetAcquiredLock(acquired bool)

func (*Context) SetInterrupted 

func (x *Context) SetInterrupted(i bool)

func (*Context) SetProgramCounter 

func (x *Context) SetProgramCounter(pc uint64)

func (*Context) SetRequiresLock 

func (x *Context) SetRequiresLock(required bool)

func (*Context) Signal 

func (x *Context) Signal()

func (*Context) Sleep 

func (x *Context) Sleep()

func (*Context) SleepCycles 

func (x *Context) SleepCycles() int

func (*Context) Status 

func (x *Context) Status() string

func (*Context) StoreData 

func (x *Context) StoreData(g, h uint64)

func (*Context) WriteRegister 

func (x *Context) WriteRegister(register flamego.Register, value uint64)

type Core 

type Core struct {
	// contains filtered or unexported fields
}

func NewCore 

func NewCore(id int, processor flamego.Processor, cache flamego.Cache) *Core

func (*Core) AcquiredLock 

func (c *Core) AcquiredLock() bool

func (*Core) AddContext 

func (c *Core) AddContext(x flamego.Context)

func (*Core) Cache 

func (c *Core) Cache() flamego.Cache

func (*Core) Clock 

func (c *Core) Clock(cycle int)

func (*Core) Context 

func (c *Core) Context(index int) flamego.Context

func (*Core) ExecuteRegister0 

func (c *Core) ExecuteRegister0() uint64

func (*Core) ExecuteRegister1 

func (c *Core) ExecuteRegister1() uint64

func (*Core) FormatRegister0 

func (c *Core) FormatRegister0() uint64

func (*Core) FormatRegister1 

func (c *Core) FormatRegister1() uint64

func (*Core) Id 

func (c *Core) Id() int

func (*Core) LoadRegister0 

func (c *Core) LoadRegister0() uint64

func (*Core) LoadRegister1 

func (c *Core) LoadRegister1() uint64

func (*Core) LoadRegister2 

func (c *Core) LoadRegister2() uint64

func (*Core) LoadRegister3 

func (c *Core) LoadRegister3() uint64

func (*Core) LockHolder 

func (c *Core) LockHolder() int

func (*Core) NextContext 

func (c *Core) NextContext() int

Index of the next context to fetch an instruction

func (*Core) Processor 

func (c *Core) Processor() flamego.Processor

func (*Core) RequiresLock 

func (c *Core) RequiresLock() bool

func (*Core) SetAcquiredLock 

func (c *Core) SetAcquiredLock(acquired bool)

type Device 

type Device struct {
	OnMemoryRead  func() error
	OnMemoryWrite func() error
	OnSignal      func(int)
	// contains filtered or unexported fields
}

func NewDevice 

func NewDevice(m flamego.Memory, o uint64) *Device

func (*Device) AddOperation 

func (d *Device) AddOperation(o flamego.DeviceOperation, f func() error)

func (*Device) Clock 

func (d *Device) Clock(cycle int)

func (*Device) Command 

func (d *Device) Command() uint64

func (*Device) Controller 

func (d *Device) Controller() int

func (*Device) CopyCommand 

func (d *Device) CopyCommand()

func (*Device) CopyData 

func (d *Device) CopyData() uint64

func (*Device) CopyDeviceAddress 

func (d *Device) CopyDeviceAddress()

func (*Device) CopyMemoryAddress 

func (d *Device) CopyMemoryAddress()

func (*Device) DeviceAddress 

func (d *Device) DeviceAddress() uint64

func (*Device) IsBusy 

func (d *Device) IsBusy() bool

func (*Device) MemoryAddress 

func (d *Device) MemoryAddress() uint64

func (*Device) MemoryOffset 

func (d *Device) MemoryOffset() uint64

func (*Device) MemoryOperation 

func (d *Device) MemoryOperation() flamego.MemoryOperation

func (*Device) Operation 

func (d *Device) Operation() flamego.DeviceOperation

func (*Device) Parameter 

func (d *Device) Parameter() uint64

func (*Device) ReadCommand 

func (d *Device) ReadCommand()

func (*Device) ReadDeviceAddress 

func (d *Device) ReadDeviceAddress()

func (*Device) ReadMemoryAddress 

func (d *Device) ReadMemoryAddress()

func (*Device) SetOnSignal 

func (d *Device) SetOnSignal(s func(int))

func (*Device) Signal 

func (d *Device) Signal()

func (*Device) SignalController 

func (d *Device) SignalController()

type Display 

type Display struct {
	Device
	// contains filtered or unexported fields
}

func NewDisplay 

func NewDisplay(m flamego.Memory, o uint64, w, h int) *Display

func (*Display) Disable 

func (d *Display) Disable() error

func (*Display) Enable 

func (d *Display) Enable() error

func (*Display) FetchFrame 

func (d *Display) FetchFrame() error

func (*Display) Image 

func (d *Display) Image() image.Image

func (*Display) LoadFrame 

func (d *Display) LoadFrame() error

func (*Display) Status 

func (d *Display) Status() error

type FileStorage 

type FileStorage struct {
	Device
	// contains filtered or unexported fields
}

func NewFileStorage 

func NewFileStorage(m flamego.Memory, o uint64) *FileStorage

func (*FileStorage) Close 

func (s *FileStorage) Close() error

func (*FileStorage) Disable 

func (s *FileStorage) Disable() error

func (*FileStorage) Enable 

func (s *FileStorage) Enable() error

func (*FileStorage) File 

func (s *FileStorage) File() *os.File

func (*FileStorage) Open 

func (s *FileStorage) Open(path string) error

func (*FileStorage) Read 

func (s *FileStorage) Read() error

func (*FileStorage) Status 

func (s *FileStorage) Status() error

func (*FileStorage) Write 

func (s *FileStorage) Write() error

type Machine 

type Machine struct {
	Processor *Processor
	Memory    *Memory

	Tick int
}

func NewMachine 

func NewMachine() *Machine

func (*Machine) Clock 

func (m *Machine) Clock()

type Memory 

type Memory struct {
	// contains filtered or unexported fields
}

func NewMemory 

func NewMemory(size int) *Memory

func (*Memory) Address 

func (m *Memory) Address() uint64

func (*Memory) Bus 

func (m *Memory) Bus() flamego.Bus

func (*Memory) Clock 

func (m *Memory) Clock(cycle int)

func (*Memory) Data 

func (m *Memory) Data() []byte

func (*Memory) Free 

func (m *Memory) Free()

func (*Memory) IsBusy 

func (m *Memory) IsBusy() bool

func (*Memory) IsFree 

func (m *Memory) IsFree() bool

func (*Memory) IsSuccessful 

func (m *Memory) IsSuccessful() bool

func (*Memory) Load 

func (m *Memory) Load(r io.Reader) (int, error)

func (*Memory) Operation 

func (m *Memory) Operation() flamego.MemoryOperation

func (*Memory) Read 

func (m *Memory) Read(address uint64)

func (*Memory) Set 

func (m *Memory) Set(address uint64, data []byte)

func (*Memory) Size 

func (m *Memory) Size() int

func (*Memory) Write 

func (m *Memory) Write(address uint64)

type Processor 

type Processor struct {
	// contains filtered or unexported fields
}

func NewProcessor 

func NewProcessor(cache flamego.Cache, memory flamego.Memory) *Processor

func (*Processor) AddCore 

func (p *Processor) AddCore(c flamego.Core)

func (*Processor) AddDevice 

func (p *Processor) AddDevice(d flamego.Device)

func (*Processor) Cache 

func (p *Processor) Cache() flamego.Cache

func (*Processor) Clock 

func (p *Processor) Clock(cycle int)

func (*Processor) Core 

func (p *Processor) Core(index int) flamego.Core

func (*Processor) Device 

func (p *Processor) Device(index int) flamego.Device

func (*Processor) Halt 

func (p *Processor) Halt()

func (*Processor) HasHalted 

func (p *Processor) HasHalted() bool

func (*Processor) LockHolder 

func (p *Processor) LockHolder() int

func (*Processor) Signal 

func (p *Processor) Signal(device int)

Source Files

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