Documentation
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Overview ¶
Package cartridge provides .nes ROM loading and saving.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
Types ¶
type Cartridge ¶
type Cartridge struct {
PRG []byte // PRG-ROM banks
CHR []byte // CHR-ROM banks
RAM byte // PRG-RAM banks
Trainer []byte
Mapper byte // mapper type
Mirror MirrorMode // mirroring mode
Battery byte // battery present
VideoFormat byte // 0 NTSC, 1 PAL
}
Cartridge contains a NES cartridge content.
type MirrorMode ¶
type MirrorMode int
MirrorMode defines a mirror mode.
const ( // MirrorHorizontal is a vertical arrangement of the nametables, // resulting in horizontal mirroring, which makes a 32x60 tilemap. MirrorHorizontal MirrorMode = iota // MirrorVertical is a horizontal arrangement of the nametables, // resulting in vertical mirroring, which makes a 64x30 tilemap. MirrorVertical // Single-screen mirroring is only available with certain mappers, // resulting in two 32x30 tilemaps. MirrorSingle0 MirrorSingle1 // Mirror4 offers 4 unique nametables can be addressed through the PPU bus, // creating a 64x60 tilemap, allowing for more flexible screen layouts. Mirror4 MirrorDiagonal MirrorLShaped Mirror3Vertical Mirror3Horizontal Mirror3Diagonal )
mirror modes.
func (MirrorMode) NametableIndexes ¶
func (m MirrorMode) NametableIndexes() [4]uint16
NametableIndexes returns the nametable indexes of the mirror mode.
Source Files
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