fix: place AdvanceMAME's sets in EmuELEC's dir_rom

AdvanceMAME reads its sets from dir_rom, a list of folders
(advance/osd/fileio.c:74, doc/advmame.d:680,699-701). EmuELEC's
advmame.rc sets dir_rom /storage/roms/mame (advmame.rc:11), and
advmame.sh rewrites /roms/mame to /roms/arcade when it is started for
the arcade system (advmame.sh:26-30). The extractor kept the keys under
the BIOS root alone: it now records those under the roms root too, and
a key the script rewrites gives one record for arcade and one for every
other system. A configgen record carries the systems it is written for.

The profile lays its 29 sets out at the top of dir_rom. On EmuELEC they
land in roms/mame. The 12 root archives AdvanceMAME alone claimed there
now hold the copies of the cores that also declare them (mame, geolith),
none of them lost.

A destination outside the BIOS tree is no proof of content: the moved
entry resolves by its layout path alone. roms/mame/konamigv.zip took
bios/Arcade/MAME/konamigv.zip, MAME 0.289's set, by that tail.

emulators/advancemame.yml

@@ -52,6 +52,9 @@ systems:
   - atari-system1
   - efo-cedar-magnet
 
+standalone_pools:
+  dir_rom: ""
+
 notes: |
   MAME 0.106 core (src/version.c:11) carrying its own video layer and driver
   backports from later MAME releases. Twenty-nine BIOS root sets, each a
@@ -156,6 +159,7 @@ files:
 
   # SNK Neo Geo MVS
   - name: neogeo.zip
+    path: "neogeo.zip"
     required: true
     category: bios_zip
     system: snk-neogeo-mvs
@@ -223,6 +227,7 @@ files:
 
   # IGS PGM
   - name: pgm.zip
+    path: "pgm.zip"
     required: true
     category: bios_zip
     system: igs-pgm
@@ -246,6 +251,7 @@ files:
 
   # Sega ST-V
   - name: stvbios.zip
+    path: "stvbios.zip"
     required: true
     category: bios_zip
     system: sega-stv
@@ -302,6 +308,7 @@ files:
 
   # Sega Mega Play
   - name: megaplay.zip
+    path: "megaplay.zip"
     required: true
     category: bios_zip
     system: sega-megaplay
@@ -323,6 +330,7 @@ files:
 
   # Sega Mega-Tech
   - name: megatech.zip
+    path: "megatech.zip"
     required: true
     category: bios_zip
     system: sega-megatech
@@ -335,6 +343,7 @@ files:
 
   # DECO Cassette System
   - name: decocass.zip
+    path: "decocass.zip"
     required: true
     category: bios_zip
     system: deco-cassette
@@ -387,6 +396,7 @@ files:
 
   # Nintendo PlayChoice-10
   - name: playch10.zip
+    path: "playch10.zip"
     required: true
     category: bios_zip
     system: nintendo-playch10
@@ -438,6 +448,7 @@ files:
 
   # Nintendo Super System
   - name: nss.zip
+    path: "nss.zip"
     required: true
     category: bios_zip
     system: nintendo-nss
@@ -466,6 +477,7 @@ files:
 
   # Super Kaneko Nova System
   - name: skns.zip
+    path: "skns.zip"
     required: true
     category: bios_zip
     system: super-kaneko-nova
@@ -501,6 +513,7 @@ files:
 
   # Konami System GX
   - name: konamigx.zip
+    path: "konamigx.zip"
     required: true
     category: bios_zip
     system: konami-gx
@@ -513,6 +526,7 @@ files:
 
   # Konami Baby Phoenix/GV System
   - name: konamigv.zip
+    path: "konamigv.zip"
     required: true
     category: bios_zip
     system: konami-gv
@@ -525,6 +539,7 @@ files:
 
   # Century Electronics CVS
   - name: cvs.zip
+    path: "cvs.zip"
     required: true
     category: bios_zip
     system: century-cvs
@@ -548,6 +563,7 @@ files:
 
   # Capcom ZN1
   - name: cpzn1.zip
+    path: "cpzn1.zip"
     required: true
     category: bios_zip
     system: capcom-zn1
@@ -560,6 +576,7 @@ files:
 
   # Capcom ZN2
   - name: cpzn2.zip
+    path: "cpzn2.zip"
     required: true
     category: bios_zip
     system: capcom-zn2
@@ -572,6 +589,7 @@ files:
 
   # Tecmo TPS
   - name: tps.zip
+    path: "tps.zip"
     required: true
     category: bios_zip
     system: tecmo-tps
@@ -584,6 +602,7 @@ files:
 
   # Taito FX1
   - name: taitofx1.zip
+    path: "taitofx1.zip"
     required: true
     category: bios_zip
     system: taito-fx1
@@ -596,6 +615,7 @@ files:
 
   # Eighting/Raizing PS Arcade 95
   - name: psarc95.zip
+    path: "psarc95.zip"
     required: true
     category: bios_zip
     system: eighting-zn1
@@ -608,6 +628,7 @@ files:
 
   # Atlus PSX
   - name: atluspsx.zip
+    path: "atluspsx.zip"
     required: true
     category: bios_zip
     system: atlus-zn1
@@ -620,6 +641,7 @@ files:
 
   # Atari PSX
   - name: atpsx.zip
+    path: "atpsx.zip"
     required: true
     category: bios_zip
     system: atari-zn1
@@ -632,6 +654,7 @@ files:
 
   # Acclaim PSX
   - name: acpsx.zip
+    path: "acpsx.zip"
     required: true
     category: bios_zip
     system: acclaim-zn1
@@ -644,6 +667,7 @@ files:
 
   # Video System PSX
   - name: coh1002v.zip
+    path: "coh1002v.zip"
     required: true
     category: bios_zip
     system: videosystem-zn1
@@ -656,6 +680,7 @@ files:
 
   # Seta Aleck64
   - name: aleck64.zip
+    path: "aleck64.zip"
     required: true
     category: bios_zip
     system: nintendo-aleck64
@@ -668,6 +693,7 @@ files:
 
   # Atari System 1
   - name: atarisy1.zip
+    path: "atarisy1.zip"
     required: true
     category: bios_zip
     system: atari-system1
@@ -691,6 +717,7 @@ files:
 
   # EFO Cedar Magnet System
   - name: cedmag.zip
+    path: "cedmag.zip"
     required: true
     category: bios_zip
     system: efo-cedar-magnet
@@ -703,6 +730,7 @@ files:
 
   # Arcadia Systems
   - name: ar_bios.zip
+    path: "ar_bios.zip"
     required: true
     category: bios_zip
     system: arcadia-systems
@@ -770,6 +798,7 @@ files:
 
   # Exidy Max-A-Flex
   - name: maxaflex.zip
+    path: "maxaflex.zip"
     required: true
     category: bios_zip
     system: exidy-maxaflex
@@ -793,6 +822,7 @@ files:
 
   # Brezzasoft Crystal System
   - name: crysbios.zip
+    path: "crysbios.zip"
     required: true
     category: bios_zip
     system: brezzasoft-crystal
@@ -805,6 +835,7 @@ files:
 
   # I'Max Multi Amenity Cassette System
   - name: macsbios.zip
+    path: "macsbios.zip"
     required: true
     category: bios_zip
     system: imax-macs
@@ -823,6 +854,7 @@ files:
 
   # Barcrest MPU4 Video
   - name: bctvidbs.zip
+    path: "bctvidbs.zip"
     required: true
     category: bios_zip
     system: barcrest-mpu4

platforms/emuelec.yml

@@ -4442,6 +4442,206 @@ launchers:
   source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:172-174, packages/sx05re/emulators/hatarisa/config/conf/Atari-ST-default.cfg:200,\
     \ packages/sx05re/emulators/hatarisa/package.mk:39, packages/sx05re/emulators/hatarisa/scripts/hatari.start:36,\
     \ 66, 73"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/artwork
+  passes_to: advmame.rc dir_artwork
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/artwork
+  passes_to: advmame.rc dir_artwork
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/diff
+  passes_to: advmame.rc dir_diff
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/diff
+  passes_to: advmame.rc dir_diff
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/hi
+  passes_to: advmame.rc dir_hi
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/hi
+  passes_to: advmame.rc dir_hi
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/image
+  passes_to: advmame.rc dir_image
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/image
+  passes_to: advmame.rc dir_image
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/inp
+  passes_to: advmame.rc dir_inp
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/inp
+  passes_to: advmame.rc dir_inp
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/memcard
+  passes_to: advmame.rc dir_memcard
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/memcard
+  passes_to: advmame.rc dir_memcard
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/nvram
+  passes_to: advmame.rc dir_nvram
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/nvram
+  passes_to: advmame.rc dir_nvram
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame
+  passes_to: advmame.rc dir_rom
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade
+  passes_to: advmame.rc dir_rom
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
 - emulator: AdvanceMame
   build: standalone
   kind: passes_path
@@ -4449,9 +4649,59 @@ launchers:
   search_dir: /storage/roms/bios/advmame/samples
   passes_to: advmame.rc dir_sample
   fails_when_missing: false
-  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:9,\
-    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:9, packages/sx05re/emulators/advancemame/config/advmame.rc:12,\
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
     \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/snap
+  passes_to: advmame.rc dir_snap
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/snap
+  passes_to: advmame.rc dir_snap
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/mame/nvram
+  passes_to: advmame.rc dir_sta
+  fails_when_missing: false
+  depends_on_option: system != arcade
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
+- emulator: AdvanceMame
+  systems:
+  - arcade
+  build: standalone
+  kind: passes_path
+  names: []
+  search_dir: /storage/roms/arcade/nvram
+  passes_to: advmame.rc dir_sta
+  fails_when_missing: false
+  source_ref: "packages/sx05re/emuelec/bin/emuelecRunEmu.sh:213-215, packages/sx05re/emulators/advancemame/config/advmame.rc_oga:1-11,\
+    \ packages/sx05re/emulators/advancemame/config/advmame.rc_gf:1-11, packages/sx05re/emulators/advancemame/config/advmame.rc:4-14,\
+    \ packages/sx05re/emulators/advancemame/package.mk:45-49, packages/sx05re/emulators/advancemame/bin/advmame.sh:26-27,\
+    \ 80"
 - emulator: SCUMMVMSA
   build: standalone
   kind: passes_path

scripts/common.py

@@ -1541,12 +1541,15 @@ def resolve_local_file(
     layout = file_entry.get("layout_path")
     if layout and layout != dest_hint:
         plain = {k: v for k, v in file_entry.items() if k != "layout_path"}
+        # A destination outside the BIOS tree says nothing of the collection:
+        # EmuELEC's roms/mame/konamigv.zip is not bios/Arcade/MAME's set.
+        outside = file_entry.get("unprefixed") or file_entry.get("root")
         answers = [
             resolve_local_file(
                 plain, db, zip_contents, dest_hint=hint, _depth=_depth,
                 data_dir_registry=data_dir_registry,
             )
-            for hint in (dest_hint, str(layout))
+            for hint in ((str(layout),) if outside else (dest_hint, str(layout)))
         ]
         for found in answers:
             if found[0] is not None and (

scripts/scraper/configgen_launchers.py

@@ -37,11 +37,13 @@ class Launcher:
     device: str | None = None
     # The machines the platform offers under the record's systems.
     machines: list[str] | None = None
+    # The platform systems the record is written for, none for every one.
+    systems: list[str] | None = None
 
     def entry(self) -> dict[str, Any]:
         """The platform YAML form, in a fixed key order, unset keys left out."""
         order = (
-            "emulator", "build", "kind", "slot", "names", "expands",
+            "emulator", "systems", "build", "kind", "slot", "names", "expands",
             "case_insensitive", "search_dir", "passes_to",
             "fails_when_missing", "fails_scope", "depends_on_option",
             "device", "machines", "source_ref",

scripts/scraper/emuelec_launchers.py

@@ -38,6 +38,8 @@ EMULATORS = f"{SX05RE}/emulators"
 LIBRETRO = f"{SX05RE}/libretro"
 RETROARCH_MK = f"{SX05RE}/libretro_base/retroarch/package.mk"
 BIOS_ROOT = "/storage/roms/bios"
+# The roms root that holds it (packages/sx05re/libretro_base/retroarch/package.mk:112,117).
+ROMS_ROOT = "/storage/roms"
 
 _EMU_TEST = re.compile(r'\$\{?EMU\}?"?\s*==?\s*"([^"]+)"')
 _ARM = re.compile(r'^\s*((?:"[^"]+"\|?)+)\)\s*$')
@@ -487,8 +489,18 @@ def hatari(tree: RepoTree, runs: Runs) -> list[Launcher]:
     ]
 
 
+_ADVMAME_SYSTEM = re.compile(r'^\s*if \[\[ "\$\{1\}" = "([\w-]+)" \]\]; then$')
+_ADVMAME_SED = re.compile(r'^\s*sed -i "s\|([^|]+)\|([^|]+)\|g" \$\{CONFIG_DIR\}/advmame\.rc$')
+
+
 def advancemame(tree: RepoTree, runs: Runs) -> list[Launcher]:
-    """Folder keys of the advmame.rc package.mk installs, one per device branch."""
+    """Folder keys of the advmame.rc package.mk installs, one per device branch.
+
+    A key under the roms root is one too: dir_rom is /storage/roms/mame. The
+    start script rewrites the config for the system it is launched for
+    (advmame.sh:26-30): /roms/mame becomes /roms/arcade for arcade, so that
+    system reads its own record.
+    """
     package = f"{EMULATORS}/advancemame"
     mk = _read(tree, f"{package}/package.mk")
     installs = [
@@ -501,8 +513,8 @@ def advancemame(tree: RepoTree, runs: Runs) -> list[Launcher]:
     by_value: dict[tuple[tuple[str, str], ...], list[tuple[str, set[int], int]]] = {}
     for mk_line, file in installs:
         path = f"{package}/config/{file}"
-        keys = [s for s in settings(tree.read(path), separator=" ") if _under(s.value)]
-        if not keys:
+        keys = [s for s in settings(tree.read(path), separator=" ") if _under(s.value, ROMS_ROOT)]
+        if not any(_under(s.value) for s in keys):
             raise LauncherPatternMissing(path, f"key naming a folder under {BIOS_ROOT}")
         value = tuple((s.key, s.value) for s in keys)
         by_value.setdefault(value, []).append((path, {s.line for s in keys}, mk_line))
@@ -511,25 +523,41 @@ def advancemame(tree: RepoTree, runs: Runs) -> list[Launcher]:
     ((value, configs),) = by_value.items()
     script = _read(tree, f"{package}/bin/advmame.sh")
     run_line, _ = script.find(r"^\s*(?:\w+=\S+ )*advmame ", "advmame start")
+    test_line, test = script.find(_ADVMAME_SYSTEM.pattern, "system test", end=run_line)
+    sed_line, sed = script.find(_ADVMAME_SED.pattern, "system rewrite", test_line + 1, test_line + 1)
     name = posixpath.basename(script.path)
-    refs = [
-        runs.ref(name),
-        *((path, lines) for path, lines, _ in configs),
-        (mk.path, {mk_line for _, _, mk_line in configs}),
-        (script.path, {run_line}),
-    ]
-    return [
-        Launcher(
-            emulator=runs.emulator(name),
-            build="standalone",
-            kind="passes_path",
-            names=[],
-            source_ref=source_ref(refs),
-            search_dir=folder,
-            passes_to=f"advmame.rc {key}",
-        )
-        for key, folder in value
-    ]
+
+    def refs(*lines: int) -> str:
+        return source_ref([
+            runs.ref(name),
+            *((path, lines) for path, lines, _ in configs),
+            (mk.path, {mk_line for _, _, mk_line in configs}),
+            (script.path, {run_line, *lines}),
+        ])
+
+    found = []
+    for key, folder in value:
+        rewritten = folder.replace(sed.group(1), sed.group(2))
+        if rewritten != folder:
+            # Every system but the one the script rewrites the key for, and
+            # that system with the rewritten folder.
+            found.append(Launcher(
+                emulator=runs.emulator(name), build="standalone", kind="passes_path", names=[],
+                source_ref=refs(test_line, sed_line), search_dir=folder,
+                passes_to=f"advmame.rc {key}",
+                depends_on_option=f"system != {test.group(1)}",
+            ))
+            found.append(Launcher(
+                emulator=runs.emulator(name), build="standalone", kind="passes_path", names=[],
+                source_ref=refs(test_line, sed_line), search_dir=rewritten,
+                passes_to=f"advmame.rc {key}", systems=[test.group(1)],
+            ))
+            continue
+        found.append(Launcher(
+            emulator=runs.emulator(name), build="standalone", kind="passes_path", names=[],
+            source_ref=refs(), search_dir=folder, passes_to=f"advmame.rc {key}",
+        ))
+    return found
 
 
 def mame(tree: RepoTree, runs: Runs) -> list[Launcher]:

tests/test_launcher_placement.py

@@ -879,5 +879,32 @@ class GzdoomOnRetroDECK(unittest.TestCase):
         self.assertFalse(any(e.get("standalone_path") for e in view["files"]))
 
 
+class AdvanceMameOnEmuELEC(unittest.TestCase):
+    """advmame.rc sets dir_rom /storage/roms/mame, /storage/roms/arcade for
+    the arcade system (advmame.rc:11, advmame.sh:26-30)."""
+
+    def test_the_sets_land_in_roms_mame(self) -> None:
+        view = standalone_view("advancemame", "emuelec")
+        sets = [e for e in view["files"] if e.get("category") == "bios_zip"]
+        self.assertEqual(len(sets), 29)
+        for entry in sets:
+            self.assertEqual(entry["standalone_path"], "mame/" + entry["name"])
+            self.assertTrue(entry.get("unprefixed"))
+
+    def test_the_roms_folder_is_no_proof_of_content(self) -> None:
+        # bios/Arcade/MAME/konamigv.zip is MAME 0.289's set, not AdvanceMAME's.
+        from common import load_database, resolve_local_file
+
+        db = load_database(str(REPO_ROOT / "database.json"))
+        view = standalone_view("advancemame", "emuelec")
+        (entry,) = [e for e in view["files"] if e["name"] == "konamigv.zip"]
+        moved, _status = resolve_local_file(entry, db, dest_hint=entry["standalone_path"])
+        plain = {k: v for k, v in entry.items()
+                 if k not in ("layout_path", "standalone_path", "unprefixed")}
+        root, _status = resolve_local_file(plain, db, dest_hint=entry["name"])
+        self.assertEqual(moved, root)
+        self.assertNotIn("/MAME/", moved)
+
+
 if __name__ == "__main__":
     unittest.main()

tests/test_launchers_emuelec.py

@@ -313,6 +313,11 @@ ADVMAME_RC = text(
 
 ADVMAME_SH = text(
     """
+    if [[ "${1}" = "arcade" ]]; then
+    sed -i "s|/roms/mame|/roms/arcade|g" ${CONFIG_DIR}/advmame.rc
+     else
+    sed -i "s|/roms/arcade|/roms/mame|g" ${CONFIG_DIR}/advmame.rc
+    fi
     SDL_AUDIODRIVER=alsa advmame ${ARG} -quiet
 """
 )
@@ -580,9 +585,17 @@ class StandaloneRecords(unittest.TestCase):
         )
 
     def test_advancemame_one_record_when_every_device_agrees(self):
-        (record,) = records(el.advancemame)
-        self.assertEqual(record["search_dir"], "/storage/roms/bios/advmame/samples")
-        self.assertNotIn("device", record)
+        roms, arcade, samples = records(el.advancemame)
+        self.assertEqual(samples["search_dir"], "/storage/roms/bios/advmame/samples")
+        self.assertNotIn("device", samples)
+        # advmame.sh rewrites /roms/mame to /roms/arcade for the arcade system.
+        self.assertEqual(
+            (roms["search_dir"], roms["passes_to"], roms["depends_on_option"]),
+            ("/storage/roms/mame", "advmame.rc dir_rom", "system != arcade"),
+        )
+        self.assertNotIn("systems", roms)
+        self.assertEqual((arcade["search_dir"], arcade["systems"]), ("/storage/roms/arcade", ["arcade"]))
+        self.assertTrue(arcade["source_ref"].endswith("bin/advmame.sh:1-2, 6"))
 
     def test_advancemame_devices_that_disagree_raise(self):
         changed = ADVMAME_RC.replace("bios/advmame", "bios/other")
@@ -618,7 +631,7 @@ class StandaloneRecords(unittest.TestCase):
 
     def test_every_extractor_runs_on_the_fixtures(self):
         found = el.extract_launchers(tree())
-        self.assertEqual(len(found), 26)
+        self.assertEqual(len(found), 28)
 
 
 class Revision(unittest.TestCase):