0.266:
======
- 68ksbc.cpp: Replaced nineteen items with FLAC dumps in 'a2600_cass.xml' [bsittler, Wilbert Pol]. Replaced nineteen items with FLAC dumps (#12328). Also removed items for previews that were part of other releases [Wilbert Pol].
- a7800.cpp: Changed years from copyright years to years of release in 'a7800.xml' [kmg].
- abc80x.cpp: Added skeleton for 'Luxor Teletex 800' [robcfg, Curt Coder].
- aim65.cpp: Add Siemens PC100 as an AIM 65 BIOS [OldComputers ES] (#12361). Also reformatted single line comments and removed comments about available software, which belong in a software list [ClawGrip].
- ampro.cpp: Metadata cleanups (#12316): Lowercase on storage media's name and avoid unnecessary abbreviations in descriptions in 'ampro.xml' [ArcadeShadow].
- apc.cpp: Metadata cleanups (#12316): Lowercase on storage media's name and avoid unnecessary abbreviations in descriptions in 'apc.xml' [ArcadeShadow].
- apple2.cpp: Added 22 working dumps in 'apple2_flop_orig.xml' and removed five imperfect cracks in 'apple2_flop_orig.xml'. Added thirteen cracks (#12294). apple2_flop_clcracked.xml, apple2_flop_orig.xml: Cleaned up metadata for Micrograms Publishing software. Added twenty-two working dumps to 'apple2_flop_orig.xml' (#12338) [A-Noid33].
- chesster, chesstera, cphantom, fdes2265, fdes2265a, fdes2325, kishon, kishona, premiere: Changed manufacturer to 'Fidelity Electronics International'.
- dimm_spd: Refactored using the i2chle mix-in [R. Belmont].
- eag68k.cpp: Redumped (feagv9) u19 ROM [Berger]. Rename (feagv7b) to (feagv7c), (feagv7a) to (feagv7b), (feagv7) to (feagv7a), (feagv9) to (feagv7). Duplicate feagv7 to feagv9 [hap].
- fdes2000, fdes2000d, fdes2100, fdes2100d, fdes2100da, feag, feag2100, feag2100a, feagv10, feagv4, feagv4a, feagv5, feagv7a, feagv7b, feagv7c, feleg, fex68k, fex68ka, fex68kb, fex68km2, fex68km2a, fex68km3, fex68km3a, fex68km3b, fex68km4, fexcel, fexcel12, fexcel124, fexcela, fexceld, fexcelp, fexcelpb, fexcelv, fphantom, fscc12, gambit: Changed manufacturer to 'Fidelity International'.
- felega, felega1, felega2, felega3, fscc12a: Changed manufacturer to 'Fidelity Computer Products'.
- fp1100.cpp: Added ROMs dumped from an FP-1000 [OldComputers ES, ClawGrip]. Fixed key labels and default assignments. Fixed build error, more const [Vas Crabb]:
- gb.cpp: (sound/gb.cpp) Fix regression (#12406): sound/gb.cpp: Fix waveram reading. sound/gb.cpp: Fix cycle handling in agb_apu [cam900]. (sound/gb.cpp) Implement GBA-specific wave channel bank and volume behavior, from PR#8367 [cam900]. Simplified some overly convoluted expressions, and tidied a bit [Vas Crabb].
- geneve: Fix mapping of external SRAM expansion [Michael Zapf].
- gt913: Fix 16-bit output port (used by ctk530 display) (#12344) [Devin Acker].
- gx4000: Update QA to 'gx4000.xml' [Angelo Salese].
- h19: Changed description to 'H-19 Terminal'.
- h88: Changed description to 'H-88'.
- h89.cpp: Various file cleanup (#12275). Fixed RAM writes when full 64K is present and lower 8K is in ROM/special RAM mode. General file cleanup and add writing to standard RAM for 64K configuration with lower 8K in ROM/special RAM mode. Additional cleanup in the mame/heathkit directory [Mark Garlanger].
- h89: Changed description to 'H-89'.
- h89_sigmasoft: Changed description to 'H-89 with SigmaSoft IGC'.
- hd44780: Simplify some code. sh_adc: Remove some debug stuff. psr540: Add the buttons [Olivier Galibert].
- ibm5170: Fix checksums [Curt Coder].
- intv.cpp: Metadata cleaning (#12315): Added manufacturer's name in software list name. Lowercase on descriptive word ("Unreleased") to 'intvecs.xml' [ArcadeShadow].
- ip20.cpp: Re-add accidentally omitted firmware version [smf].
- itc4.cpp: Add ASCII diagrams for PCB and control panel (#12374) [ClawGrip]. Use proper names for D-subminiature connector backshells [Vas Crabb].
- jaguar.cpp: Cleaned up descriptions and moved some comments to  elements and Metadata cleanups (#12282): Lowercase on descriptive words/abbreviatures ("Demo", "Rev.", "Ver."). Moved test result comments to notes tag, removed "Boot OK" in notes in 'jaguar.xml' [ArcadeShadow].
- kim1: Added pinouts for the main variants of the "6502 local bus" to comment [Vas Crabb].
- m68000: Added option to use Musashi for M68000 emulation [R. Belmont].
- m6809: Fixed invalid escape sequence warnings [Vas Crabb].
- macquadra630.cpp: Minor cleanup. Hook I2C up between Cuda and Valkyrie [R. Belmont, Angelo Salese].
- mdconsole.cpp: Added 2 working items, replaced bad dump (#12190). Bad Dump replaced with verified one. Férias Frustradas do Pica-Pau (Brazil) (fixes GitHub Issue https://github.com/mamedev/mame/issues/11950) [MARCSLASH, arthurthekidboy]. Fixed some descriptions, added some notes (#12171) and updated descriptions for some Sonic The Hedgehog games, and added notes in 'megadriv.xml' and added three working items [ICEknigh7].
- mikromik.cpp: Implemented SASI bus interface. Allow model M7 to boot into self-test mode with hand-crafted MMU PROM, and start adding Winchester bits [Curt Coder].
- mz700.cpp: Maked software that doen't run in MAME as unsupported (#12317); also cleaned up descriptions in 'mz700_cass.xml' [ArcadeShadow]. Fix broken URL [Angelo Salese].
- neogeo.cpp: Fix audiocpu size in nblktiger to match provided dump [Scott Stone] and added ten working items to 'neogeo.xml' (#12367) [ArcadeShadow].
- psion.cpp: Added release years and removed redundant offsets to 'psion1.xml' and 'psion2.xml' [Nigel Barnes].
- psr540: SVG fix. Start adding the floppy. Fix midi, finish the screen mapping, add NVRAM. Another, final, SVG fix. Choose the correct variant hd44780: KS0066U f00 validated on a live psr. Add the midi ports. Stop the freezing by actually running the sci channels [Olivier Galibert].
- pwm_display: Fix potential time travel issue, hd44102: missing break [hap].
- qbus: Reuse Z80 daisy chain code for vectored interrupts [shattered].
- rm380z.cpp: Add COS 4.0/F firmware configurations (#12195) [Robin Sergeant].
- rm480z: Remove an array overflow (this is dead code, function never gets called, but GCC 14.1 complained) [hap].
- rz1.cpp: Use separate speaker devices for individual line outputs (#12283) [Devin Acker].
- sc55: Add the internal program rom [HardWareMan, nukeykt].
- segaai: Added three items (not working) to 'segaai.xml' [SMS Power!, Wilbert Pol].
- sh7042: Add dmac, mtu, adc, intc, sci, bsc. Separate A and non-A psr540: Add the swx00 [Olivier Galibert].
- t11: Reuse Z80 daisy chain code for vectored interrupts; reuse z80_daisy_chain for QBus vectored interrupts; forward INIT signal to all cards on QBus (#12290) [shattered].
- tiki100.cpp: Metadata cleanups (#12316): Lowercase on storage media's name and replaced country abbreviation by the fullname in 'tiki100.xml' [ArcadeShadow].
- tmc600.cpp: Implement quickload for SBASIC programs; fixed audio pitch, fixed blinking colors, removed UTF8 macros  [Curt Coder].
- tms34010: Suppress side effects for debugger reads (#12287) [cam900].
- upd7725: Mask address for data RAM accesses [dink].
- vixen.cpp: Metadata cleanups (#12316): Lowercase on storage media's name in 'vixen.xml' [ArcadeShadow].
- vsmilepro.cpp: Demoted to MIS [Ivan Vangelista].
- wicat.cpp: Metadata cleanups (#12316) [ArcadeShadow]: Added storage media's name in software list name in 'wicat.xml:' [ArcadeShadow].
- x1: WIP modernization. Update robowres QA in 'x1_flop.xml'; fix AY routing to mono [Angelo Salese]. Add fdd motor timeout and support odd d88 images; fix Header [cracyc].
- x1twin: Fix compile [hap].
- xavix.cpp: New SOFTWARE LIST additions (ekara etc.), mostly XaviX (#12310). Comment cleanup [AJR]. Consolidated ekara form-factor carts into a single list with compatibility filters [David Haywood].
- z29: Changed description to 'Z-29 Terminal'.
- Remove (sh_adc) device.
- Rename (feagv9) to (feagv7), (feagv7) to (feagv7a), (feagv7a) to (feagv7b) and (feagv7b) to (feagv7c).
- ClawGrip added skeleton\pcksurfer.cpp and skeleton\cubieboard4.cpp drivers.
- Curt Coder added nokia\mikromikko2.cpp driver.
- David Haywood added tomy\kisssite.cpp driver.
- Dirk Best added esprit\esp250c.cpp driver.
- Ivan Vangelista added roland\roland_mt80s.cpp and sony\clie_db.cpp drivers.
- Olivier Galibert added yamaha\ymqs300.cpp and yamaha\ymmu2000.cpp drivers.
- cam900 added 'AGB APU' device.
- Curt Coder added 'Luxor Teletex 800' device.
- David Haywood added 'MIPS-X' device.
- hap added 'Yamaha SCI4 quad-serial gate array' device.
- Olivier Galibert added 'Hitachi SH-2 (SH7042A)', Hitachi SH-2 (SH7043A)', SH Bus State Controller', SH DMA controller channel', SH DMA controller', SH Multifuntion timer pulse unit channel', SH Multifuntion timer pulse unit', SH Serial Communications Interface', SH2/704x ADC (high speed)' and SH2/704x ADC (medium speed)' devices.
- Vas Crabb added 'Macintosh Keyboard (Japanese - M0110J)' device.
- Wilbert Pol added 'MSX Cartridge - Franky' and Popolon Musical Memory Mapper' devices.
- buffi added 'Roland MT 80s Music Player' system.
- Chan Chu Yo added 'Datawind Pocket Surfer (prototype)' system.
- Cloudschatze, NikitaLita added 'Roland Sound Canvas CM-300' system.
- Dirk Best, Bitsavers added 'Esprit Systems 250C' system.
- Giulio Fieramosca added 'Psion Series 3a (2M) (Italian)' system.
- Guru added 'Sony Clie PEG-T650C' system.
- hap, Berger added 'Fidelity International Elite Avant Garde 2325 (model 6117-9, set 1)', Fidelity International Elite Avant Garde 2325 (model 6117-9, set 2)', Fidelity International Elite Avant Garde 2325 (model 6117-9, set 3)' and Fidelity International Elite Avant Garde 2325 (model 6117-9, set 4)' systems.
- Mark Garlanger added 'Zenith Data Systems Z-90' system.
- Matt added 'Roland Sound Canvas SC-155' system.
- Matt, O. Galibert added 'Yamaha MU1000', Yamaha MU2000' and Yamaha MU500' systems.
- Museo del Recreativo, Recreativas.org added 'Cubietech Limited Cubieboard4 (CC A-20)' system.
- Niko Nieminen added 'Nokia Data MikroMikko 1 M4', Nokia Data MikroMikko 1 M4G', Nokia Data MikroMikko 1 M6G', Nokia Data MikroMikko 1 M7G' and Nokia Data MikroMikko 2 M35D' systems.
- O. Galibert, Matt added 'Yamaha EOS B900' and Yamaha QS300' systems.
- OldComputers ES added 'Casio FP-1000' system.
- Robin Sergeant added 'Research Machines RM-380Z, COS 4.0B/F' and Research Machines RM-380Z, COS 4.0B/F with HRG' systems.
- TeamEurope added 'Epoch / SSD Company LTD TV-PC Doraemon (Japan)', Epoch / SSD Company LTD TV-PC Thomas & Friends (Japan)' and Tomy Kiss-Site' systems.