So, any changes (natural or otherwise) in the rom* will be reflected in the dump tecnically that's a good dump since it's accurate to the chip, but it's commonly considered a bad dump because it doesn't reflect what the factory put in it (and in the console scene at least, projects like No-Intro and Redump exist to compare different dumps of what is supposed to be the same rom, so that there can be a convention of what a good dump is) Let's pretend you're "dumping" a mass produced book with a scanner (ignoring the fact a book is not digital, but hopefully you get the idea) - if done right, you're probably going to end up with a sufficiently accurate copy of the contents, but of those of YOUR book including any dicks you've drawn on it ) Would that cause transcription errors like I said or do malfunctioning ROMs transcribe perfectly? Honestly, "transcription errors"? Like ROM chips are somehow dumped by people manually jotting down numbers, and aren't just popped into any number of devices made by BPMicro, or MiniPro, and directly imaged? Transcription errors have happened in like the maybe 10-20 cases, ever, of a microcontroller or DSP being decapped and then visually transcribed, but stating that as the common reason for why a ROMset gets updated is manifestly untrue.
Such data tends not to have even existed in the ROMset prior to such an update. This covers about 95% of the cases.Ī copy-protected microcontroller (which is emphatically not a "game ROM", but its own self-contained computer system which includes a CPU core, ROM, RAM, and I/O devices) ends up getting its data read out. This is unfortunately somewhat frequent on boards that use FlashROM technology, as manufacturers often went for the absolute bottom of the barrel in terms of quality, and the chips themselves tend to be soldered directly to the board, meaning both desoldering the chip and wiring it up to the appropriate programmer can cause issues.īeyond that, the vast majority of cases of a ROM set being updated fall into one of two categories:Ī PAL, GAL, PLD, small BPROM that doesn't directly contain program data, or other auxiliary chip gets dumped that was omitted due to ignorance on the part of the person originally dumping the game. Usually the only cases of those particular ROM images being updated in a ROM set is when the chip itself has partially bit-rotted due to age, or was otherwise faulty. what? It's true that ROM sets are updated from time to time, but the reasons you're giving are practically fan-fiction.Ĭopying an individual ROM chip is relatively straightforward, particularly for DIP-footprint chips that are socketed. r/pinball - Pinball specific discussion. r/arcade - Original CoinOP Arcade specific discussion. r/RetroGamingNetwork - a multireddit for retro gaming! r/HyperSpin - HyperSpin specific discussion. R/MAME RULES/REGULATIONS REDDIT'S ARCADE COMMUNITY Over time, MAME (originally stood for Multiple Arcade Machine Emulator) absorbed the sister-project MESS (Multi Emulator Super System), so MAME now documents a wide variety of (mostly vintage) computers, video game consoles and calculators, in addition to the arcade video games that were its initial focus.
#Mame 0.37b5 romsets software
The fact that the software is usable serves primarily to validate the accuracy of the documentation (how else can you prove that you have recreated the hardware faithfully?).
#Mame 0.37b5 romsets code
The source code to MAME serves as this documentation.
This is achieved by documenting the hardware and how it functions. As electronic technology continues to rush forward, MAME prevents this important "vintage" software from being lost and forgotten. MAME’s purpose is to preserve decades of software history. MAME is a multi-purpose emulation framework. Questions? Please check out OUR MAME/BYOAC Wiki!
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