{ "commit": "fbe5ba4e3e790ab07eddc5b57e0f45a02cbcd60e", "count": 1, "generated_at": "2026-10-24T00:06:47Z", "items": [ { "id": "nosgba", "profile": { "core_classification": "embedded_hle", "core_version": "3.04", "cores": [ "nosgba" ], "display_name": "Nintendo - GBA/DS/DSi (no$gba)", "emulator": "no$gba", "files": [ { "aliases": [ "GBA.ROM" ], "description": "Game Boy Advance BIOS", "hle_fallback": true, "md5": "a860e8c0b6d573d191e4ec7db1b1e4f6", "name": "BIOSGBA.ROM", "note": "Tried after NO$GBA.ROM and before GBA.ROM. Expected checksum pair 0xbaae187f, 0xc98cfa1d, which the retail GBA BIOS gives. Needed for the BIOS sound functions and the Nintendo logo boot.\n", "on_mismatch": "warn", "required": false, "sha1": "300c20df6731a33952ded8c436f7f186d25d3492", "size": 16384, "source_ref": "NO$GBA.EXE v3.04 0x471a81-0x471aac (slot), 0x4357c6-0x43589a (load and checksum), 0x43578c-0x4357c5 (stub when absent)", "system": "nintendo-gba" }, { "description": "Nintendo DS ARM7 BIOS", "hle_fallback": true, "md5": "df692a80a5b1bc90728bc3dfc76cd948", "name": "BIOSNDS7.ROM", "note": "Tried after NO$GBA.ROM at 0x4000 and BIOSNDS.ROM at 0. Expected checksum pair 0xbc180972, 0x36b3e1b2. Carries the key that decrypts encrypted cartridge secure areas and CodeBreaker codes.\n", "on_mismatch": "warn", "required": false, "sha1": "24f67bdea115a2c847c8813a262502ee1607b7df", "size": 16384, "source_ref": "NO$GBA.EXE v3.04 0x471ab1-0x471adc (slot), 0x4357c6-0x43589a (load and checksum)", "system": "nintendo-ds" }, { "description": "Nintendo DS ARM9 BIOS", "hle_fallback": true, "md5": "a392174eb3e572fed6447e956bde4b25", "name": "BIOSNDS9.ROM", "note": "Tried after NO$GBA.ROM at 0x8000 and BIOSNDS.ROM at 0x4000. Expected checksum pair 0xbb212bf7, 0x1bec1d77.\n", "on_mismatch": "warn", "required": false, "sha1": "bfaac75f101c135e32e2aaf541de6b1be4c8c62d", "size": 4096, "source_ref": "NO$GBA.EXE v3.04 0x471ae1-0x471b0c (slot), 0x4357c6-0x43589a (load and checksum)", "system": "nintendo-ds" }, { "description": "Nintendo DS firmware flash", "hle_fallback": true, "max_size": 524288, "name": "FIRMWARE.BIN", "note": "Read whole into a buffer of 256 KiB, or 512 KiB when the file is larger. A file over 512 KiB stops the program with \"Unexpected Error\". Absent, a 256 KiB buffer stands in. No hash is checked.\n", "required": false, "source_ref": "NO$GBA.EXE v3.04 0x4356a8-0x4356e8 (load), 0x4358a2-0x4358d3 (buffer size), 0x4348fa (error)", "system": "nintendo-ds" }, { "description": "Nintendo DSi ARM7 BIOS", "name": "BIOSDSI7.ROM", "note": "Tried after BIOSDSI.ROM at 0. No checksum. DSi mode stops without it since it holds the RSA keys.\n", "required": false, "size": 65536, "source_ref": "NO$GBA.EXE v3.04 0x471b11-0x471b38 (slot), 0x4357c6-0x435802 (load)", "system": "nintendo-dsi" }, { "description": "Nintendo DSi ARM9 BIOS", "name": "BIOSDSI9.ROM", "note": "Tried after BIOSDSI.ROM at 0x10000. No checksum.", "required": false, "size": 65536, "source_ref": "NO$GBA.EXE v3.04 0x471b39-0x471b60 (slot), 0x4357c6-0x435802 (load)", "system": "nintendo-dsi" }, { "description": "DSi wifi firmware flash", "hle_fallback": true, "name": "WIFI-DSI.BIN", "note": "Read whole. Absent, a 128 KiB buffer stands in. No hash is checked.\n", "required": false, "source_ref": "NO$GBA.EXE v3.04 0x435701-0x435741 (load), 0x4358d4-0x4358ef (buffer)", "system": "nintendo-dsi" }, { "description": "Atheros AR6002 wifi chip ROM", "name": "AR6002G.ROM", "note": "Read for a DSi when the byte at firmware offset 0x1fd is not 2. Absent, the ROM area is filled with 0x55.\n", "required": false, "source_ref": "NO$GBA.EXE v3.04 0x46014c-0x4601bd", "system": "nintendo-dsi" }, { "description": "Atheros AR6013 wifi chip ROM", "name": "AR6013G.ROM", "note": "Read for a DSi when the byte at firmware offset 0x1fd is 2. Absent, the ROM area is filled with 0x55.", "required": false, "source_ref": "NO$GBA.EXE v3.04 0x46014c-0x4601bd", "system": "nintendo-dsi" }, { "description": "DSi eMMC image with nocash footer", "name": "DSi-1.mmc", "note": "eMMC of the first emulated DSi. The footer has to carry the CID and the console ID. No hash or size is checked.\n", "required": false, "source_ref": "NO$GBA.EXE v3.04 0x43acea-0x43ad65", "system": "nintendo-dsi" }, { "description": "DSi SD card image", "md5": "a5feb3d3fc0cdf0f663ef1a80ba39e72", "name": "DSi-1.sd", "note": "SD card of the first emulated DSi. The official zip ships a blank FAT16 one as DSI-1.SD inside DSI-SD.ZIP. The hashes are those of that file, the code checks none.\n", "required": false, "sha1": "b473e101c7d22c15272f3cfce7c30b01f67839b4", "size": 125698048, "source_ref": "NO$GBA.EXE v3.04 0x43acea-0x43ad65", "system": "nintendo-dsi" }, { "description": "PocketStation BIOS", "hle_fallback": true, "md5": "3bcdcef3d9aa7af85cd45e29986d11c8", "name": "POCKSTAT.ROM", "note": "Expected checksum pair 0x27e94c07, 0x63beca34, given by the image ending in J061. An image ending in J110 is checked against 0xb16ce96c, 0xbedf0d0f instead, and one with POCKBIOS at 0x40 is not checked. Absent, a built-in clone is used.\n", "on_mismatch": "warn", "required": false, "sha1": "6ae880493ddde880827d1e9f08e9cb2c38f9f2ec", "size": 16384, "source_ref": "NO$GBA.EXE v3.04 0x471b61-0x471b80 (slot), 0x43582b-0x435863 (variant tests), 0x435750-0x435771 (clone)", "system": "sony-pocketstation" } ], "mode": "standalone", "notes": "Freeware gaming build of Martin Korth's Game Boy Advance, Nintendo DS and\nDSi emulator for Windows, closed source. RetroBat installs it as nosgba and\nstarts NO$GBA.EXE with the ROM. Its NO$GBA.EXE (220079 bytes, sha1\n935b857bc1249479124247612755eeb2a247f23c) is the one in no$gba-w.zip of\nv3.04, 23 Mar 2021, byte for byte. The official zip also carries\nDSI-SD.ZIP, which RetroBat leaves out. Everything below is read from that\nexecutable after removing its UPX layer. Addresses are virtual addresses of\nthe unpacked image (base 0x400000).\n\nEvery file is opened by bare name. Before each open the program builds its\nown folder from the module path and makes it the current directory\n(0x431741, 0x4316ea), so all of them sit next to NO$GBA.EXE.\n\nThe boot ROMs come from one table of six slots (0x471a81-0x471b80), loaded\nby one routine (0x4357c6-0x4358a1). For each slot it clears the buffer, then\ntries a list of (file, offset) pairs in order. The first file that opens and\nis longer than its offset gives the bytes, read at that offset for the slot\nsize. No size is checked beyond that. The lists:\nGBA, 16 KiB: NO$GBA.ROM at 0, BIOSGBA.ROM at 0, GBA.ROM at 0.\nNDS ARM7, 16 KiB: NO$GBA.ROM at 0x4000, BIOSNDS.ROM at 0, BIOSNDS7.ROM at 0.\nNDS ARM9, 4 KiB: NO$GBA.ROM at 0x8000, BIOSNDS.ROM at 0x4000, BIOSNDS9.ROM at 0.\nDSi ARM7, 64 KiB: BIOSDSI.ROM at 0, BIOSDSI7.ROM at 0.\nDSi ARM9, 64 KiB: BIOSDSI.ROM at 0x10000, BIOSDSI9.ROM at 0.\nPocketStation, 16 KiB: POCKSTAT.ROM at 0.\nNO$GBA.ROM, BIOSNDS.ROM and BIOSDSI.ROM are therefore concatenations of the\nsingle images, GBA then ARM7 then ARM9.\n\nAfter a slot loads, two 32-bit words are computed over it: the sum of its\ndwords, and a value seeded with 0x42494f53 that takes each dword plus the\ncount of dwords left, XORs it in and rotates right by one. The GBA, NDS ARM7,\nNDS ARM9 and PocketStation slots carry the expected pair, the DSi slots carry\nnone. A mismatch only raises \"Incorrect GBA/NDS BIOS version!\" and the image\nstays in use (0x43586a-0x43589a, 0x4358f0-0x43591e). The md5 and sha1 given\nbelow are those of the dumps that produce the expected pair.\n\nWithout a GBA image the slot receives a 236-byte stub held in the executable\n(0x43578c-0x4357c5) and the BIOS calls run as x86 code, the default of the\n\"Emulate BIOS Functions\" option. Only the BIOS sound functions then stop with\n\"Sorry, no$gba needs a copy of the original GBA BIOS\". The NDS slots stay\nzero and the calls are emulated the same way. The ARM7 image is what\ndecrypts the secure area of an encrypted cartridge dump and CodeBreaker\ncodes (\"Encrypted Cartridge, requires files BiosNds7.rom and BiosNds9.rom\").\nWithout a PocketStation image a built-in clone named pockclon is expanded in\nits place (0x435750-0x435771). DSi mode needs the DSi images for their RSA\nkeys and stops with \"Missing DSi BIOS dump (need RSA keys)\" without them.\n\nThe DSi eMMC and SD card are files named from the emulated unit number, 1 for\nthe first machine: the name is written over a template as \"DSi-\", the digit,\nthen \"mmc\" or \"sd\" (0x43acea-0x43ad2d). The eMMC image must carry the\nnocash footer with the CID and console ID (\"Missing footer in .mmc file\").\nThe template string itself reads New3DS-#.mmc, from the 3DS mode.\n\nWritten rather than obtained: NO$GBA.INI (generated config), NO$GBA.INP (key\nsetup), saves under BATTERY, snapshots under SLOT, QUIKSAVE.SNA, and\nFIRMnnnn.BIN and BIOS dumps the xboo cable tools write. NO$GBA.CHT is a\ncheat list the user writes, help.htm and help.txt are documentation, and\nno$gba.key is the registration file of the debug version.\n", "profiled_date": "2026-10-20", "source": "https://problemkaputt.de/gba.htm", "systems": [ "nintendo-gba", "nintendo-ds", "nintendo-dsi", "sony-pocketstation" ], "type": "standalone", "upstream": "https://problemkaputt.de/gba.htm", "version_source": { "pattern": "no\\$gba v(\\d+(?:\\.\\d+)+)", "url": "https://problemkaputt.de/gba.htm" } } } ], "kind": "emulators", "schema_version": 1 }