emulator: Redream
type: libretro
source: "https://github.com/inolen/redream"
profiled_date: "2026-11-05"
source_commit: "ffb7302245ff40515cb9f0f0b0e233a4b39342d3"
core_version: "v1.0.0-25-gffb7302"
version_basis:
  kind: tag
  tag: "v1.0.0"
  distance: 25
cores:
  - redream
systems:
  - sega-dreamcast

notes: |
  Last public tree of redream (2018-04-18). It builds the SDL program and
  a libretro core that reports library_name redream
  (src/host/retro_host.c:214-220). retro_init makes <system>/dc the
  application directory (src/host/retro_host.c:192-199), where the boot ROM
  and the flash ROM are read. Later releases, 1.5.0 included, are built from
  a private tree and published as binaries only.

files:
  - name: boot.bin
    path: dc/boot.bin
    system: sega-dreamcast
    required: false
    hle_fallback: true
    size: 2097152
    md5:
      - e10c53c2f8b90bab96ead2d368858623
      - f2cd29d09f3e29984bcea22ab2e006fe
      - 37c921eb47532cae8fb70e5d987ce91c
      - a5c6a00818f97c5e3e91569ee22416dc
    validation: [size, md5]
    note: "Dreamcast boot ROM. An image of another size or with an md5 outside the list is refused, and the BIOS is then emulated at a high level."
    source_ref: "src/guest/rom/boot.c:12-22, src/guest/rom/boot.c:24-46, src/guest/rom/boot.c:48-80, src/guest/rom/boot.c:82-89, src/guest/bios/bios.c:227-238, src/guest/bios/bios.c:326-336"

  - name: flash.bin
    path: dc/flash.bin
    system: sega-dreamcast
    required: false
    hle_fallback: true
    size: 131072
    validation: [size]
    note: "Dreamcast flash ROM. An image of another size is ignored and the partitions are reset to factory settings, and the flash is written back on exit."
    source_ref: "src/guest/rom/flash.c:26-36, src/guest/rom/flash.c:47-72, src/guest/rom/flash.c:100-107, src/guest/rom/flash.c:197-200, src/guest/bios/bios.c:137-198"