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path: root/src/devices/cpu/dsp16/dsp16.cpp
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* Detect array members that can't be replicated and manually register each ↵ Aaron Giles2021-04-191-5/+0
| | | | item instead. Remove old ALLOW_SAVE_TYPE now that enums are implicitly supported. Add stricter checking of endpoint offsets. Some other cleanups.
* emumem: Simplify memory management. [O. Galibert] Olivier Galibert2020-11-021-2/+2
| | | | | | | | | | | | | | | | | | | | API impact: - install_ram/rom/writeonly now requires a non-null pointer. If you want automatically managed ram, add it to a memory map, not in machine_start - install_*_bank now requires a memory_bank *, not a string - one can create memory banks outside of memory maps with memory_bank_creator - one can create memory shares outside of memory maps with memory_share_creator Memory maps impact: - ram ranges with overlapping addresses are not shared anymore. Use .share() - ram ranges touching each other are not merged anymore. Stay in your range Extra note: - there is no need to create a bank just to dynamically map some memory/rom. Just use install_rom/ram/writeonly
* validity.cpp: Limit characters allowed in I/O port tags, and check ROMs and ↵ Vas Crabb2020-08-271-3/+3
| | | | I/O ports for devices individually.
* finally retired the READ8/16/32/64 and WRITE8/16/32/64 macros (nw) Ivan Vangelista2020-06-181-6/+6
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* emumem: A little more speedup. cache and specific change syntax, and are ↵ Olivier Galibert2020-05-251-8/+8
| | | | | | | | | | | | | | | | not pointers anymore [O. Galibert] The last(?) two changes are: - Add a template parameter to everything (theoretically the address space width, in practice a level derived from it to keep as much compatibility between widths as possible) so that the shift size becomes a constant. - Change the syntax of declaring and initializing the caches and specifics so that they're embedded in the owner device. Solves lifetime issues and also removes one indirection (looking up the base dispatch pointer through the cache/specific pointer).
* removed some dummy_space() calls (nw) smf-2020-04-021-6/+6
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* Make devdelegate more like devcb for configuration. This is a Vas Crabb2019-10-261-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fundamental change to show device delegates are configured. Device delegates are now aware of the current device during configuration and will resolve string tags relative to it. This means that device delegates need a device to be supplied on construction so they can find the machine configuration object. There's a one-dimensional array helper to make it easier to construct arrays of device delegates with the same owner. (I didn't make an n-dimensional one because I didn't hit a use case, but it would be a simple addition.) There's no more bind_relative_to member - just call resolve() like you would for a devcb. There's also no need to cast nullptr when creating a late bind device delegate. The flip side is that for an overloaded or non-capturing lambda you'll need to cast to the desired type. There is one less conditional branch in the hot path for calls for delegates bound to a function pointer of member function pointer. This comes at the cost of one additional unconditional branch in the hot path for calls to delegates bound to functoids (lambdas, functions that don't take an object reference, other callable objects). This applies to all delegates, not just device delegates. Address spaces will now print an error message if a late bind error is encountered while installing a handler. This will give the range and address range, hopefully making it easier to guess which memory map is faulty. For the simple case of allowing a device_delegate member to be configured, use a member like this: template <typename... T> void set_foo(T &&...args) { m_foo_cb.set(std::forward<T>(args)...); } For a case where different delegates need to be used depending on the function signature, see src/emu/screen.h (the screen update function setters). Device delegates now take a target specification and function pointer. The target may be: * Target omitted, implying the current device being configured. This can only be used during configuration. It will work as long as the current device is not removed/replaced. * A tag string relative to the current device being configured. This can only be used during configuration. It will not be callable until .resolve() is called. It will work as long as the current device is not removed/replaced. * A device finder (required_device/optional_device). The delegate will late bind to the current target of the device finder. It will not be callable until .resolve() is called. It will work properly if the target device is replaced, as long as the device finder's base object isn't removed/replaced. * A reference to an object. It will be callable immediately. It will work as long as the target object is not removed/replaced. The target types and restrictions are pretty similar to what you already have on object finders and devcb, so it shouldn't cause any surprises. Note that dereferencing a device finder will changes the effect. To illustrate this: ... required_device<some_device> m_dev; ... m_dev(*this, "dev") ... // will late bind to "dev" relative to *this // will work if "dev" hasn't been created yet or is replaced later // won't work if *this is removed/replaced // won't be callable until resolve() is called cb1.set(m_dev, FUNC(some_device::w)); ... // will bind to current target of m_dev // will not work if m_dev is not resolved // will not work if "dev" is replaced later // will be callable immediately cb2.set(*m_dev, FUNC(some_device::w)); ... The order of the target and name has been reversed for functoids (lambdas and other callable objects). This allows the NAME macro to be used on lambdas and functoids. For example: foo.set_something(NAME([this] (u8 data) { m_something = data; })); I realise the diagnostic messages get ugly if you use NAME on a large lambda. You can still give a literal name, you just have to place it after the lambda rather than before. This is uglier, but it's intentional. I'm trying to drive developers away from a certain style. While it's nice that you can put half the driver code in the memory map, it detracts from readability. It's hard to visualise the memory range mappings if the memory map functions are punctuated by large lambdas. There's also slightly higher overhead for calling a delegate bound to a functoid. If the code is prettier for trivial lambdas but uglier for non-trivial lambdas in address maps, it will hopefully steer people away from putting non-trivial lambdas in memory maps. There were some devices that were converted from using plain delegates without adding bind_relative_to calls. I fixed some of them (e.g. LaserDisc) but I probably missed some. These will likely crash on unresolved delegate calls. There are some devices that reset delegates at configuration complete or start time, preventing them from being set up during configuration (e.g. src/devices/video/ppu2c0x.cpp and src/devices/machine/68307.cpp). This goes against the design principles of how device delegates should be used, but I didn't change them because I don't trust myself to find all the places they're used. I've definitely broken some stuff with this (I know about asterix), so report issues and bear with me until I get it all fixed.
* emumem: Rename direct_read_handler to memory_access_cache. Parametrize the ↵ Olivier Galibert2018-05-111-8/+8
| | | | template on more information (data width, endianness) to make it possible to turn it into an handler cache eventually, and not just a memory block cache. Make it capable of large and unaligned accesses. [O. Galibert]
* dsp16: aT = R has no X bit, duh (nw) Vas Crabb2018-05-101-4/+4
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* stupid HOLD_LINE (nw) Vas Crabb2018-04-041-0/+4
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* move some not-directly-emulation-related helpers to lib/util, further ↵ Vas Crabb2018-04-011-1/+1
| | | | extricate emu.h from tools (nw)
* dsp16: bypass memory system for work RAM access when debugger is disabled - ↵ Vas Crabb2018-03-281-39/+48
| | | | gives small performance gain
* Reshuffle some stuff: Vas Crabb2018-03-281-646/+697
| | | | | | * Move around the debugger hooks to get a small but measurable performance increase * Remove emucore from external tools * Improve performance of DSP16 interpreter a little by generating six variants of execution loop
* don't pass so many naked pointers around (nw) Vas Crabb2018-03-251-2/+2
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* dsp16: move most core state into DRC cache - keeps a lot of details out of ↵ Vas Crabb2018-03-211-471/+233
| | | | the main header (DRC is still stubbed out) (nw)
* (nw) dsp16: marginal performance improvement by precalculating SIO clock ↵ Vas Crabb2018-03-191-17/+29
| | | | divider preload, also push ILD/OLD on mode change
* second time I've done that (nw) Vas Crabb2018-03-191-1/+1
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* dsp16: rewrite disassembler - less cluttered output, better handling of ↵ Vas Crabb2018-03-181-7/+112
| | | | ambiguous operations, look-ahead for predicated jumps, live will/won't comments on conditional instructions
* dsp16: start adding recompiler boilerplate (nw) Vas Crabb2018-03-171-1/+1
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* dsp16: fix some corner cases (nw) Vas Crabb2018-03-171-20/+31
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* use more constexpr and literal classes in UML to give compiler more ↵ Vas Crabb2018-03-171-1/+1
| | | | optimisation opportunities (nw)
* dsp16: implement remaining instructions for completeness Vas Crabb2018-03-161-43/+121
| | | | qsound_hle: use same sample rate as DSP
* QSound LLE available with a 3-character change Vas Crabb2018-03-161-2/+2
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* Cycle-accurate DSP16 core (disabled in QSound for performance reasons) Vas Crabb2018-03-151-328/+2006
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* emumem: API change [O. Galibert] Olivier Galibert2017-11-291-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * direct_read_data is now a template which takes the address bus shift as a parameter. * address_space::direct<shift>() is now a template method that takes the shift as a parameter and returns a pointer instead of a reference * the address to give to {read|write}_* on address_space or direct_read_data is now the address one wants to access Longer explanation: Up until now, the {read|write}_* methods required the caller to give the byte offset instead of the actual address. That's the same on byte-addressing CPUs, e.g. the ones everyone knows, but it's different on the word/long/quad addressing ones (tms, sharc, etc...) or the bit-addressing one (tms340x0). Changing that required templatizing the direct access interface on the bus addressing granularity, historically called address bus shift. Also, since everybody was taking the address of the reference returned by direct(), and structurally didn't have much choice in the matter, it got changed to return a pointer directly. Longest historical explanation: In a cpu core, the hottest memory access, by far, is the opcode fetching. It's also an access with very good locality (doesn't move much, tends to stay in the same rom/ram zone even when jumping around, tends not to hit handlers), which makes efficient caching worthwhile (as in, 30-50% faster core iirc on something like the 6502, but that was 20 years ago and a number of things changed since then). In fact, opcode fetching was, in the distant past, just an array lookup indexed by pc on an offset pointer, which was updated on branches. It didn't stay that way because more elaborate access is often needed (handlers, banking with instructions crossing a bank...) but it still ends up with a frontend of "if the address is still in the current range read from pointer+address otherwise do the slowpath", e.g. two usually correctly predicted branches plus the read most of the time. Then the >8 bits cpus arrived. That was ok, it just required to do the add to a u8 *, then convert to a u16/u32 * and do the read. At the asm level, it was all identical except for the final read, and read_byte/word/long being separate there was no test (and associated overhead) added in the path. Then the word-addressing CPUs arrived with, iirc, the tms cpus used in atari games. They require, to read from the pointer, to shift the address, either explicitely, or implicitely through indexing a u16 *. There were three possibilities: 1- create a new read_* method for each size and granularity. That amounts to a lot of copy/paste in the end, and functions with identical prototypes so the compiler can't detect you're using the wrong one. 2- put a variable shift in the read path. That was too expensive especially since the most critical cpus are byte-addressing (68000 at the time was the key). Having bit-adressing cpus which means the shift can either be right or left depending on the variable makes things even worse. 3- require the caller to do the shift himself when needed. The last solution was chosen, and starting that day the address was a byte offset and not the real address. Which is, actually, quite surprising when writing a new cpu core or, worse, when using the read/write methods from the driver code. But since then, C++ happened. And, in particular, templates with non-type parameters. Suddendly, solution 1 can be done without the copy/paste and with different types allowing to detect (at runtime, but systematically and at startup) if you got it wrong, while still generating optimal code. So it was time to switch to that solution and makes the address parameter sane again. Especially since it makes mucking in the rest of the memory subsystem code a lot more understandable.
* dvdisasm: Overhaul [O. Galibert] Olivier Galibert2017-11-261-28/+4
| | | | | | | | Disassemblers are now independant classes. Not only the code is cleaner, but unidasm has access to all the cpu cores again. The interface to the disassembly method has changed from byte buffers to objects that give a result to read methods. This also adds support for lfsr and/or paged PCs.
* make device_memory_interface slightly less of a special case, use a typedef ↵ Vas Crabb2017-07-101-2/+2
| | | | to avoid nested templates everywhere (nw)
* dimemory: Lift the cap on the number of address spaces per device [O. Galibert] Olivier Galibert2017-07-031-4/+5
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* Move static data out of devices into the device types. This is a ↵ Vas Crabb2017-05-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | significant change, so please pay attention. The core changes are: * Short name, full name and source file are no longer members of device_t, they are part of the device type * MACHINE_COFIG_START no longer needs a driver class * MACHINE_CONFIG_DERIVED_CLASS is no longer necessary * Specify the state class you want in the GAME/COMP/CONS line * The compiler will work out the base class where the driver init member is declared * There is one static device type object per driver rather than one per machine configuration Use DECLARE_DEVICE_TYPE or DECLARE_DEVICE_TYPE_NS to declare device type. * DECLARE_DEVICE_TYPE forward-declares teh device type and class, and declares extern object finders. * DECLARE_DEVICE_TYPE_NS is for devices classes in namespaces - it doesn't forward-declare the device type. Use DEFINE_DEVICE_TYPE or DEFINE_DEVICE_TYPE_NS to define device types. * These macros declare storage for the static data, and instantiate the device type and device finder templates. The rest of the changes are mostly just moving stuff out of headers that shouldn't be there, renaming stuff for consistency, and scoping stuff down where appropriate. Things I've actually messed with substantially: * More descriptive names for a lot of devices * Untangled the fantasy sound from the driver state, which necessitates breaking up sound/flip writes * Changed DECO BSMT2000 ready callback into a device delegate * Untangled Microprose 3D noise from driver state * Used object finders for CoCo multipak, KC85 D002, and Irem sound subdevices * Started to get TI-99 stuff out of the TI-990 directory and arrange bus devices properly * Started to break out common parts of Samsung ARM SoC devices * Turned some of FM, SID, SCSP DSP, EPIC12 and Voodoo cores into something resmbling C++ * Tried to make Z180 table allocation/setup a bit safer * Converted generic keyboard/terminal to not use WRITE8 - space/offset aren't relevant * Dynamically allocate generic terminal buffer so derived devices (e.g. teleprinter) can specify size * Imporved encapsulation of Z80DART channels * Refactored the SPC7110 bit table generator loop to make it more readable * Added wrappers for SNES PPU operations so members can be made protected * Factored out some boilerplate for YM chips with PSG * toaplan2 gfx * stic/intv resolution * Video System video * Out Run/Y-board sprite alignment * GIC video hookup * Amstrad CPC ROM box members * IQ151 ROM cart region * MSX cart IRQ callback resolution time * SMS passthrough control devices starting subslots I've smoke-tested several drivers, but I've probably missed something. Things I've missed will likely blow up spectacularly with failure to bind errors and the like. Let me know if there's more subtle breakage (could have happened in FM or Voodoo). And can everyone please, please try to keep stuff clean. In particular, please stop polluting the global namespace. Keep things out of headers that don't need to be there, and use things that can be scoped down rather than macros. It feels like an uphill battle trying to get this stuff under control while more of it's added.
* Self-registering devices prep: Vas Crabb2017-02-271-1/+1
| | | | | | | | | | | | | | * Make device_creator a variable template and get rid of the ampersands * Remove screen.h and speaker.h from emu.h and add where necessary * Centralise instantiations of screen and speaker finder templates * Add/standardise #include guards in many hearers * Remove many redundant #includes * Order #includesr to help catch headers that can't be #included alone (nw) This changes #include order to be prefix, unit header if applicable then other stuff roughly in order from most dependent to least dependent library. This helps catch headers that don't #include things that they use.
* Changed disassembler infrastructure to not use char buffers internally Nathan Woods2016-11-201-2/+2
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* Introduce u8/u16/u32/u64/s8/s16/s32/s64 Vas Crabb2016-11-191-2/+2
| | | | | | | | | | | | * New abbreviated types are in osd and util namespaces, and also in global namespace for things that #include "emu.h" * Get rid of import of cstdint types to global namespace (C99 does this anyway) * Remove the cstdint types from everything in emu * Get rid of U64/S64 macros * Fix a bug in dps16 caused by incorrect use of macro * Fix debugcon not checking for "do " prefix case-insensitively * Fix a lot of messed up tabulation * More constexpr * Fix up many __names
* NOTICE (TYPE NAME CONSOLIDATION) Miodrag Milanovic2016-10-221-17/+17
| | | | | Use standard uint64_t, uint32_t, uint16_t or uint8_t instead of UINT64, UINT32, UINT16 or UINT8 also use standard int64_t, int32_t, int16_t or int8_t instead of INT64, INT32, INT16 or INT8
* Make sure all cpu's export STATE_GENPCBASE and use safe_pcbase() for ↵ smf-2016-09-281-1/+1
| | | | everything in the debugger, which allows interruptible cpu's to work properly. [smf]
* Revert "Make sure all cpu's export STATE_GENPCBASE and use safe_pcbase() for ↵ Lord-Nightmare2016-09-271-1/+1
| | | | | | everything in the debugger, which allows interruptible cpu's to work properly. [smf]" This reverts commit 1a186c8a3a16a7ce99d7df2dd217a7552b696c92.
* Make sure all cpu's export STATE_GENPCBASE and use safe_pcbase() for ↵ smf-2016-09-271-1/+1
| | | | everything in the debugger, which allows interruptible cpu's to work properly. [smf]
* INC -> HXX makes editors and code analyzers see it as C++ (nw) Miodrag Milanovic2016-05-011-1/+1
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* NULL->nullptr, instead of DEVCB_NULL use always DEVCB_NOOP to prevent ↵ Miodrag Milanovic2016-04-241-1/+1
| | | | confusion (nw)
* Replace strformat, strprintf and strcatprintf with type-safe steam_format ↵ Vas Crabb2016-02-281-76/+76
| | | | | | | | | and string_format Update MAME to use new function Instantiate ODR-used static constant members Make some of the UI code more localisable Remove use of retired functions in tools
* reverting: Miodrag Milanovic2016-01-201-1/+1
| | | | | | | SHA-1: 1f90ceab075c4869298e963bf0a14a0aac2f1caa * tags are now strings (nw) fix start project for custom builds in Visual Studio (nw)
* tags are now strings (nw) Miodrag Milanovic2016-01-161-1/+1
| | | | fix start project for custom builds in Visual Studio (nw)
* Revert "remove const (nw)" Miodrag Milanovic2016-01-131-1/+1
| | | | This reverts commit e96fd34dd817f1113daf9e6b099a8f40cfd1ed6d.
* remove const (nw) Miodrag Milanovic2016-01-111-1/+1
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* Return std::string objects by value rather than pass by reference AJR2016-01-101-1/+1
| | | | | | - strprintf is unaltered, but strformat now takes one fewer argument - state_string_export still fills a buffer, but has been made const - get_default_card_software now takes no arguments but returns a string
* clang-modernize part 3 Miodrag Milanovic2015-12-041-4/+4
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* Rename *.c -> *.cpp in our source (nw) Miodrag Milanovic2015-11-081-0/+453