external

package
v0.6.2 Latest Latest
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 Go to latest Published: Sep 29, 2025 License: GPL-3.0 Imports: 11 Imported by: 0

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Constants

This section is empty.

Variables

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var UnrecognisedData = errors.New("unrecognised data")

error returned when data is not recognised at all

Functions

This section is empty.

Types

type Banksets added in v0.5.1 

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

https://7800.8bitdev.org/index.php/Bankset_Bankswitching

func NewBanksets added in v0.5.1 

func NewBanksets(_ Context, supergame bool, d []byte, ram bool) (*Banksets, error)

func (*Banksets) Access added in v0.5.1 

func (ext *Banksets) Access(write bool, address uint16, data uint8) (uint8, error)

func (*Banksets) HLT added in v0.5.1 

func (ext *Banksets) HLT(hlt bool)

func (*Banksets) Label added in v0.5.1 

func (ext *Banksets) Label() string

type Bus added in v0.6.0 

type Bus interface {
	Label() string
	Access(write bool, address uint16, data uint8) (uint8, error)
}

type CartridgeInsertor 

type CartridgeInsertor struct {

	// whether controller should have just one-buttons. NOTE: placeholder
	// until we add more sophisticated controller requirements (paddle, etc.)
	OneButtonStick bool
	// contains filtered or unexported fields
}

func Fingerprint 

func Fingerprint(filename string, mapper string) (CartridgeInsertor, error)

func (CartridgeInsertor) Data added in v0.4.2 

func (c CartridgeInsertor) Data() []uint8

func (CartridgeInsertor) Filename added in v0.4.2 

func (c CartridgeInsertor) Filename() string

func (CartridgeInsertor) ResetProcedure 

func (c CartridgeInsertor) ResetProcedure() CartridgeReset

type CartridgeReset 

type CartridgeReset struct {
	// if BypassBIOS is true then the normal BIOS initialisation procedure is bypassed
	BypassBIOS bool
}

type Context 

type Context interface {
	elf.Context
	Rand8Bit() uint8
}

type Device 

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

func Create 

func Create(ctx Context) *Device

func (*Device) Access 

func (dev *Device) Access(write bool, address uint16, data uint8) (uint8, error)

func (*Device) BusChange 

func (dev *Device) BusChange(address uint16, data uint8) error

func (*Device) Chips added in v0.6.0 

func (dev *Device) Chips(yield func(OptionalBus))

Chips iterates through the additional (none ROM/RAM) chips in the external device

func (*Device) Eject 

func (dev *Device) Eject()

func (*Device) GetCoProcHandler 

func (dev *Device) GetCoProcHandler() coprocessor.CartCoProcHandler

func (*Device) HLT added in v0.5.1 

func (dev *Device) HLT(halt bool)

HLT should be called whenever the HLT line is changed

func (*Device) Insert 

func (dev *Device) Insert(c CartridgeInsertor) error

func (*Device) IsEjected 

func (dev *Device) IsEjected() bool

func (*Device) Label 

func (dev *Device) Label() string

type Flat 

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

func NewFlat 

func NewFlat(_ Context, d []byte) (*Flat, error)

func (*Flat) Access 

func (ext *Flat) Access(_ bool, address uint16, data uint8) (uint8, error)

func (*Flat) Label 

func (ext *Flat) Label() string

type OptionalBus added in v0.6.0 

type OptionalBus interface {
	Label() string
	Access(write bool, address uint16, data uint8) (uint8, bool, error)
}

the OptionalBus interface differs to the Bus interface because the Access() function returns an additional boolean result to indicate whether the address was recognised and handled. The intention is for the External device to call Access() on the OptionalBus first and to only call Access() on the main Bus device if the first Access() returned false

type SN added in v0.6.0 

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

SN is used for both SN and Eagle

func NewSN added in v0.6.0 

func NewSN(_ Context, d []byte, version string) (*SN, error)

func (*SN) Access added in v0.6.0 

func (ext *SN) Access(write bool, address uint16, data uint8) (uint8, error)

func (*SN) Label added in v0.6.0 

func (ext *SN) Label() string

type Supergame 

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

https://7800.8bitdev.org/index.php/ATARI_7800_BANKSWITCHING_GUIDE

"There are several different types of Atari's SuperGame bankswitching. It basically consists of 8 16KB banks (0-7) that can be mapped in at $8000-$bfff. Bank 7 always is fixed at $c000-$ffff. To map in a chosen bank into $8000-$bfff you write it's bank number (0-7) to any address between $8000-bfff."

func NewSupergame 

func NewSupergame(_ Context, d []byte, banked bool, exram bool, exrom bool) (*Supergame, error)

func (*Supergame) Access 

func (ext *Supergame) Access(write bool, address uint16, data uint8) (uint8, error)

func (*Supergame) Label 

func (ext *Supergame) Label() string

Source Files

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Directories

Path Synopsis
Package ace implements the ELF cartridge mapper.
 Package ace implements the ELF cartridge mapper.

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