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* bus/spectrum: Changed m_romcs type int->bool. Nigel Barnes2024-02-181-2/+2
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* spectrum_opus: Use device finder array for floppy drives AJR2023-10-121-7/+7
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* misc mcfg: remove pia6821 clock freq param, hap2023-09-201-1/+1
| | | | mm2: remove copypasted input ports
* emu/device.h: Removed device (READ|WRITE)_LINE_MEMBER in favor of explicit ↵ MooglyGuy2023-06-011-2/+2
| | | | function signatures. (#11283) [Ryan Holtz]
* zx spectrum: new slot devices, floating bus restore, big mface tidy-up (#7913) Tom2022-01-251-1/+2
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* Future-proofing by using correct #include for SOFTWARE_LIST device AJR2022-01-031-0/+1
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* floppies: Turn the format arrays into function calls. Create a default ↵ Olivier Galibert2021-03-021-3/+5
| | | | "mfm", "fm" and "pc" list of formats. Their contents, and which driver uses what, may need some tuning.
* bus/spectrum fix expansion devices chaining MetalliC2020-07-221-5/+0
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* bus/spectrum/opus.cpp fix activation logic MetalliC2020-07-171-6/+4
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* last batch of changes to make the ↵ Ivan Vangelista2020-05-211-2/+2
| | | | https://github.com/mamedev/mame/tree/devcb-no-space branch build. (nw)
* push forward with the spectrum betadisc stuff, now system at least boots ↵ David Haywood2019-08-311-2/+2
| | | | | | | | | | | | with it enabled (nw) (#5576) * work towards betadisc (nw) * work towards older betadisk support (nw) * some refactoring (nw) * add note from Metallic (nw)
* Pia6821 improvements (#5254) Mike2019-06-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 6821pia: fix method names in comments * zwackery: Remove PIA port A z_mask setting. This would only be relevant if the PIA was read while in output mode. These are inputs, and only read in input mode, so z_mask is not relevant. * thomson: move pia pullup resistors from z_mask to read handler. * 6821pia: remove unused set_port_a_z_mask calls. * dgn_beta: move pia pullup resistors from z_mask to read handler. * mpu3: Don't invert the VFD power on reset line. It doesn't go through an inverter. I believe this was done to work around a bug in the PIA port A implementation. * pia6821: remove m_port_a_z_mask variable. * 6821pia: For port A reads, only use the DDR for reading pins unless. Provide an override option when a device depends on slightly undefined behavior of an external device driving the pins and changing the value read. One board seems to need this (coinmstr). I don't have the schematics, but it seems it uses this to check its meter operation.
* (nw) Clean up the mess on master Vas Crabb2019-03-261-0/+289
| | | | | | | | | | | | | This effectively reverts b380514764cf857469bae61c11143a19f79a74c5 and c24473ddff715ecec2e258a6eb38960cf8c8e98e, restoring the state at 598cd5227223c3b04ca31f0dbc1981256d9ea3ff. Before pushing, please check that what you're about to push is sane. Check your local commit log and ensure there isn't anything out-of-place before pushing to mainline. When things like this happen, it wastes everyone's time. I really don't need this in a week when real work™ is busting my balls and I'm behind where I want to be with preparing for MAME release.
* Revert "conflict resolution (nw)" andreasnaive2019-03-251-289/+0
| | | | | This reverts commit c24473ddff715ecec2e258a6eb38960cf8c8e98e, reversing changes made to 009cba4fb8102102168ef32870892438327f3705.
* srcclean (nw) Vas Crabb2019-03-241-1/+1
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* spectrum: Added the Opus Discovery disc system, and OPD floppy format. Nigel Barnes2019-03-221-0/+289