PiSCSI

PiSCSI

PiSCSI provides an Amiga-side SCSI-like block device backed by host files.

For the newer backend and current CD-ROM workflow, see piscsi64.

Key files:

• platforms/amiga/piscsi/
• platforms/amiga/piscsi/readme.md

HDF mapping

HDF images are listed in the config or platform settings. On boot, PiSCSI:

• Loads the PiSCSI ROM.
• Scans partitions.
• Installs filesystem handlers (e.g. PFS/3, DOS/1).

DMA and memory safety

For stability:

• Keep ROM ranges read-only in the mapper.
• Ensure DMA destinations are within RAM maps (Z2/Z3/RTG) and never into ROM.
• If using a dedicated DMA window, prefer Z3 space (e.g. 0x60000000+).

ADF read/write

ADF support is handled via host files in data/ and device handlers. See ADF-Read-Write.