emulator: SquirrelJME
type: libretro
core_classification: official_port
source: "https://github.com/SquirrelJME/SquirrelJME"
upstream: "https://github.com/SquirrelJME/SquirrelJME"
profiled_date: "2026-03-25"
source_commit: "4dca9d4d45523cc76272d1ade2b53121b2ea4674"
core_version: "0.3.0"
display_name: "Java ME (SquirrelJME)"
cores: [squirreljme]
systems: [j2me]
verification: existence
notes: |
  Java ME 8 virtual machine. Runs J2ME MIDlets and older flip-phone games.
  Requires a class library JAR in the system directory. The core searches
  sjme_nvm_romNames[] in priority order and uses the first match found.
  All entries are optional: without a class library, the core runs a built-in
  modeless stars demo but cannot execute J2ME software.
  The .info declares firmware_count=8 but the code defines 10 search names
  (the two not in the .info are squirreljme-{version}-test.jar and squirreljme-test.jar).

files:
  - name: "squirreljme-0.3.0-fast.jar"
    description: "Class library v0.3.0, fast/optimized build"
    required: false
    source_ref: "nanocoat/src/boot.c:92"

  - name: "squirreljme-0.3.0.jar"
    description: "Class library v0.3.0, standard build"
    required: false
    source_ref: "nanocoat/src/boot.c:93"

  - name: "squirreljme-0.3.0-test.jar"
    description: "Class library v0.3.0, standard build with test suites"
    required: false
    source_ref: "nanocoat/src/boot.c:94"

  - name: "squirreljme-0.3.0-slow.jar"
    description: "Class library v0.3.0, slow/interpreter build"
    required: false
    source_ref: "nanocoat/src/boot.c:95"

  - name: "squirreljme-0.3.0-slow-test.jar"
    description: "Class library v0.3.0, slow build with test suites"
    required: false
    source_ref: "nanocoat/src/boot.c:96"

  - name: "squirreljme-fast.jar"
    description: "Class library, fast/optimized build (unversioned)"
    required: false
    source_ref: "nanocoat/src/boot.c:97"

  - name: "squirreljme.jar"
    description: "Class library, standard build (unversioned)"
    required: false
    source_ref: "nanocoat/src/boot.c:98"

  - name: "squirreljme-test.jar"
    description: "Class library, standard build with test suites (unversioned)"
    required: false
    source_ref: "nanocoat/src/boot.c:99"

  - name: "squirreljme-slow.jar"
    description: "Class library, slow/interpreter build (unversioned)"
    required: false
    source_ref: "nanocoat/src/boot.c:100"

  - name: "squirreljme-slow-test.jar"
    description: "Class library, slow build with test suites (unversioned)"
    required: false
    source_ref: "nanocoat/src/boot.c:101"