Crate rustysnes_cart 

rustysnes-cart — the SNES cartridge / memory-map / coprocessor model (cart).

Owns the LoROM / HiROM / ExHiROM address mapping and every on-cart coprocessor (DSP-1..4 / Super FX (GSU) / SA-1 / S-DD1 / SPC7110 / CX4 / OBC1). All board-specific behavior — bank switching, the coprocessor clock, IRQ/refresh hooks — lives behind the Board trait, not in the PPU or CPU (the RustyNES “mapper logic lives in the mapper” rule, ported). The video chip depends ONLY on this crate for its VRAM/CHR bus.

Part of the one-directional chip-crate graph (see docs/architecture.md): this crate does NOT depend on the other chip crates. #![no_std] + alloc so it cross-compiles to a bare-metal target; only the frontend carries std + unsafe.

Re-exports

pub use board::Board;

pub use board::Coprocessor;

pub use board::ExHiRom;

pub use board::HiRom;

pub use board::LoRom;

pub use board::MappedAddr;

pub use coproc::Dsp1Board;

pub use coproc::Gsu;

pub use coproc::Revision;

pub use coproc::Sa1Board;

pub use coproc::SuperFxBoard;

pub use coproc::Upd77c25;

pub use header::Header;

pub use header::HeaderError;

pub use header::MapMode;

pub use header::Region;

pub use tier::BoardTier;

pub use tier::board_tier;

Modules

board

The Board trait — the SNES analogue of RustyNES’s Mapper.

coproc

On-cart coprocessors that plug into the crate::board::Board trait.

header

SNES internal-header detection.

tier

Board accuracy-tiering — the honesty marker (ADR 0003, the RustyNES ADR 0011 port).

Structs

Cart

A loaded cartridge: a parsed Header + the Board that implements its mapping and any coprocessor. The crate::board module decodes the header into the right board.