mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-11-01 15:43:45 -06:00
Abdessamad Derraz
3199bc2a55
Each standalone profile records where its version is read: the source at its pin (clk 2026-07-23-136-g9020107, shadps4 0.20.1 WIP, eden v0.2.0-401-g26a03d2), the APK, binary or archive read (kind package), or, where no reading can be made, kind unverified with the reason: a host the tools cannot read, a forge gone or not answering, no build recorded as read, a pin on another branch. Those keep their value, unconfirmed.
227 lines
9.6 KiB
YAML
227 lines
9.6 KiB
YAML
emulator: no$gba
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type: standalone
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core_classification: embedded_hle
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source: "https://problemkaputt.de/gba.htm"
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upstream: "https://problemkaputt.de/gba.htm"
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version_source:
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url: "https://problemkaputt.de/gba.htm"
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pattern: 'no\$gba v(\d+(?:\.\d+)+)'
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profiled_date: "2026-10-24"
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core_version: "3.06"
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version_basis:
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kind: package
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url: "https://problemkaputt.de/gba.htm"
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artifact: "no$gba-w.zip, release v3.06 of 14 Apr 2025 on the download page"
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display_name: "Nintendo - GBA/DS/DSi (no$gba)"
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cores:
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- nosgba
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systems:
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- nintendo-gba
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- nintendo-ds
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- nintendo-dsi
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- sony-pocketstation
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mode: standalone
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notes: |
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Freeware gaming build of Martin Korth's Game Boy Advance, Nintendo DS and
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DSi emulator for Windows, closed source. RetroBat installs it as nosgba and
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starts NO$GBA.EXE with the ROM. Everything below is read from the
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NO$GBA.EXE of no$gba-w.zip v3.06, 14 Apr 2025 (224175 bytes, sha1
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a167242d3800ccc0ac7e5b42e8d6f3f150ed6283), after removing its UPX layer.
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Addresses are virtual addresses of the unpacked image (base 0x400000). The
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nosgba package RetroBat installs, stable and beta alike, still carries the
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v3.04 executable of 23 Mar 2021 (220079 bytes, sha1
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935b857bc1249479124247612755eeb2a247f23c). Its boot ROM table, loader,
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checksum pairs, firmware and wifi reads, DSi image naming and Atheros ROM
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reads are the same instructions at other addresses, and its 236-byte GBA
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stub is the same bytes. The official zip also carries DSI-SD.ZIP, which
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RetroBat leaves out.
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Every file is opened by bare name. Before each open the program builds its
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own folder from the module path and makes it the current directory
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(0x432515, 0x4324be), so all of them sit next to NO$GBA.EXE.
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The boot ROMs come from one table of six slots (0x472ff5-0x4730f4), loaded
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by one routine (0x436604-0x4366df). For each slot it clears the buffer, then
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tries a list of (file, offset) pairs in order. The first file that opens and
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is longer than its offset gives the bytes, read at that offset for the slot
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size. No size is checked beyond that. The lists:
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GBA, 16 KiB: NO$GBA.ROM at 0, BIOSGBA.ROM at 0, GBA.ROM at 0.
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NDS ARM7, 16 KiB: NO$GBA.ROM at 0x4000, BIOSNDS.ROM at 0, BIOSNDS7.ROM at 0.
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NDS ARM9, 4 KiB: NO$GBA.ROM at 0x8000, BIOSNDS.ROM at 0x4000, BIOSNDS9.ROM at 0.
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DSi ARM7, 64 KiB: BIOSDSI.ROM at 0, BIOSDSI7.ROM at 0.
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DSi ARM9, 64 KiB: BIOSDSI.ROM at 0x10000, BIOSDSI9.ROM at 0.
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PocketStation, 16 KiB: POCKSTAT.ROM at 0.
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NO$GBA.ROM, BIOSNDS.ROM and BIOSDSI.ROM are therefore concatenations of the
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single images, GBA then ARM7 then ARM9.
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After a slot loads, two 32-bit words are computed over it: the sum of its
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dwords, and a value seeded with 0x42494f53 that takes each dword plus the
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count of dwords left, XORs it in and rotates right by one. The GBA, NDS ARM7,
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NDS ARM9 and PocketStation slots carry the expected pair, the DSi slots carry
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none. A mismatch only raises "Incorrect GBA/NDS BIOS version!" and the image
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stays in use (0x4366a8-0x4366d8, 0x43672e-0x43675c). The md5 and sha1 given
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below are those of the dumps that produce the expected pair.
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Without a GBA image the slot receives a 236-byte stub held in the executable
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(0x4365ca-0x436603) and the BIOS calls run as x86 code, the default of the
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"Emulate BIOS Functions" option. Only the BIOS sound functions then stop with
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"Sorry, no$gba needs a copy of the original GBA BIOS". The NDS slots stay
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zero and the calls are emulated the same way. The ARM7 image is what
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decrypts the secure area of an encrypted cartridge dump and CodeBreaker
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codes ("Encrypted Cartridge, requires files BiosNds7.rom and BiosNds9.rom").
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Without a PocketStation image a built-in clone named pockclon is expanded in
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its place (0x43658e-0x4365af). DSi mode needs the DSi images for their RSA
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keys and stops with "Missing DSi BIOS dump (need RSA keys)" without them.
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The DSi eMMC and SD card are files named from the emulated unit number, 1 for
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the first machine: the name is written over a template as "DSi-", the digit,
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then "mmc" or "sd" (0x439a47-0x439a8a). The eMMC image must carry the
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nocash footer with the CID and console ID ("Missing footer in .mmc file").
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The template string itself reads New3DS-#.mmc, from the 3DS mode.
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Written rather than obtained: NO$GBA.INI (generated config), NO$GBA.INP (key
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setup), saves under BATTERY, snapshots under SLOT, QUIKSAVE.SNA, and
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FIRMnnnn.BIN and BIOS dumps the xboo cable tools write. NO$GBA.CHT is a
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cheat list the user writes, help.htm and help.txt are documentation, and
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no$gba.key is the registration file of the debug version.
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files:
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- name: BIOSGBA.ROM
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aliases: ["GBA.ROM"]
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system: nintendo-gba
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required: false
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hle_fallback: true
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size: 16384
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md5: "a860e8c0b6d573d191e4ec7db1b1e4f6"
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sha1: "300c20df6731a33952ded8c436f7f186d25d3492"
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on_mismatch: warn
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description: "Game Boy Advance BIOS"
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note: >
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Tried after NO$GBA.ROM and before GBA.ROM. Expected checksum pair
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0xbaae187f, 0xc98cfa1d, which the retail GBA BIOS gives. Needed for the
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BIOS sound functions and the Nintendo logo boot.
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source_ref: "NO$GBA.EXE v3.06 0x472ff5-0x473020 (slot), 0x436604-0x4366d8 (load and checksum), 0x4365ca-0x436603 (stub when absent)"
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- name: BIOSNDS7.ROM
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system: nintendo-ds
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required: false
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hle_fallback: true
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size: 16384
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md5: "df692a80a5b1bc90728bc3dfc76cd948"
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sha1: "24f67bdea115a2c847c8813a262502ee1607b7df"
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on_mismatch: warn
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description: "Nintendo DS ARM7 BIOS"
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note: >
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Tried after NO$GBA.ROM at 0x4000 and BIOSNDS.ROM at 0. Expected checksum
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pair 0xbc180972, 0x36b3e1b2. Carries the key that decrypts encrypted
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cartridge secure areas and CodeBreaker codes.
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source_ref: "NO$GBA.EXE v3.06 0x473025-0x473050 (slot), 0x436604-0x4366d8 (load and checksum)"
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- name: BIOSNDS9.ROM
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system: nintendo-ds
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required: false
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hle_fallback: true
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size: 4096
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md5: "a392174eb3e572fed6447e956bde4b25"
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sha1: "bfaac75f101c135e32e2aaf541de6b1be4c8c62d"
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on_mismatch: warn
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description: "Nintendo DS ARM9 BIOS"
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note: >
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Tried after NO$GBA.ROM at 0x8000 and BIOSNDS.ROM at 0x4000. Expected
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checksum pair 0xbb212bf7, 0x1bec1d77.
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source_ref: "NO$GBA.EXE v3.06 0x473055-0x473080 (slot), 0x436604-0x4366d8 (load and checksum)"
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- name: FIRMWARE.BIN
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system: nintendo-ds
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required: false
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hle_fallback: true
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max_size: 524288
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description: "Nintendo DS firmware flash"
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note: >
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Read whole into a buffer of 256 KiB, or 512 KiB when the file is larger.
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A file over 512 KiB stops the program with "Unexpected Error". Absent, a
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256 KiB buffer stands in. No hash is checked.
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source_ref: "NO$GBA.EXE v3.06 0x4364e6-0x436526 (load), 0x4366e0-0x436711 (buffer size), 0x435777 (error)"
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- name: BIOSDSI7.ROM
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system: nintendo-dsi
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required: false
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size: 65536
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description: "Nintendo DSi ARM7 BIOS"
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note: >
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Tried after BIOSDSI.ROM at 0. No checksum. DSi mode stops without it
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since it holds the RSA keys.
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source_ref: "NO$GBA.EXE v3.06 0x473085-0x4730ac (slot), 0x436604-0x436640 (load)"
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- name: BIOSDSI9.ROM
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system: nintendo-dsi
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required: false
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size: 65536
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description: "Nintendo DSi ARM9 BIOS"
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note: "Tried after BIOSDSI.ROM at 0x10000. No checksum."
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source_ref: "NO$GBA.EXE v3.06 0x4730ad-0x4730d4 (slot), 0x436604-0x436640 (load)"
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- name: WIFI-DSI.BIN
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system: nintendo-dsi
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required: false
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hle_fallback: true
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description: "DSi wifi firmware flash"
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note: >
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Read whole. Absent, a 128 KiB buffer stands in. No hash is checked.
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source_ref: "NO$GBA.EXE v3.06 0x43653f-0x43657f (load), 0x436712-0x43672d (buffer)"
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- name: AR6002G.ROM
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system: nintendo-dsi
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required: false
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description: "Atheros AR6002 wifi chip ROM"
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note: >
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Read for a DSi when the byte at firmware offset 0x1fd is not 2. Absent,
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the ROM area is filled with 0x55.
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source_ref: "NO$GBA.EXE v3.06 0x460d54-0x460dc5"
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- name: AR6013G.ROM
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system: nintendo-dsi
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required: false
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description: "Atheros AR6013 wifi chip ROM"
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note: "Read for a DSi when the byte at firmware offset 0x1fd is 2. Absent, the ROM area is filled with 0x55."
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source_ref: "NO$GBA.EXE v3.06 0x460d54-0x460dc5"
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- name: DSi-1.mmc
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system: nintendo-dsi
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required: false
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description: "DSi eMMC image with nocash footer"
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note: >
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eMMC of the first emulated DSi. The footer has to carry the CID and the
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console ID. No hash or size is checked.
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source_ref: "NO$GBA.EXE v3.06 0x439a47-0x439ac2"
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- name: DSi-1.sd
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system: nintendo-dsi
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required: false
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size: 125698048
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md5: "a5feb3d3fc0cdf0f663ef1a80ba39e72"
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sha1: "b473e101c7d22c15272f3cfce7c30b01f67839b4"
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description: "DSi SD card image"
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note: >
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SD card of the first emulated DSi. The official zip ships a blank
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FAT16 one as DSI-1.SD inside DSI-SD.ZIP. The hashes are those of that
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file, the code checks none.
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source_ref: "NO$GBA.EXE v3.06 0x439a47-0x439ac2"
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- name: POCKSTAT.ROM
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system: sony-pocketstation
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required: false
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hle_fallback: true
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size: 16384
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md5: "3bcdcef3d9aa7af85cd45e29986d11c8"
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sha1: "6ae880493ddde880827d1e9f08e9cb2c38f9f2ec"
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on_mismatch: warn
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description: "PocketStation BIOS"
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note: >
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Expected checksum pair 0x27e94c07, 0x63beca34, given by the image ending
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in J061. An image ending in J110 is checked against 0xb16ce96c,
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0xbedf0d0f instead, and one with POCKBIOS at 0x40 is not checked.
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Absent, a built-in clone is used.
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source_ref: "NO$GBA.EXE v3.06 0x4730d5-0x4730f4 (slot), 0x436669-0x4366a1 (variant tests), 0x43658e-0x4365af (clone)"
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