| Commit message (Collapse) | Author | Age | Files | Lines |
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- breakout: update notes
- 9316: switch to output array
- ppmf: fix a warning
- nlid_system.h: remove useless brackets.
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OMP defines belong into pconfig.h since pomp.h - used by netlist -
depends on them.
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std::exception (nw)
funworld.cpp cleanup: (nw)
* remove revision history - we use version control for a reason
* don't #define things before inluding the PCH, and don't #define generic names before #including anything
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All pstonum calls now need to specify if they want local locale
or the "classic" "C" locale.
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This approach uses functors for logging messages.
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Adjust warning levels and fix a number of topics identified.
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mame -validate now also checks all netlist devices. It does this
by constructing a temporary netlist.
This commit also fixes some memory leaks and a bad bug which
surfaced in validation.
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improvements.
- fix MB3614 parameter
- Added VARCLOCK which derives step size from function
- optimized function handling in CS and VS
- fixed a bug in ppreprocessor
- add trunc to pfunction
- added opamp_amplification_curve to derive characteristic
amplification curve
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- Untie diode code
- Fix some typos
- add TYPE=2 opamp model which omits output voltage limitation
Useful for determining causes of non-convergence
- Fix MB3614 opamp parameters to match datasheet
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modelling. [Couriersud]
Added global NETLIST.DEFAULT_MOS_CAPMODEL parameter. Setting this to
zero disables using capitance modelling in mos models.
On a per mos device basis this can be achieved by adding CAPMODEL=0 to
the model definition, e.g. MOSFET(X, "NMOS(CAPMODEL=0)")
Improve MOSFET convergence by using log-stepping.
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This fixes a rounding issue in the ptime code. This bug surfaced when I
tested netlist with picosecond resolution in ptime.
This will have a small impact on every driver using netlist. For
breakout, it required to adjust the color overlay.
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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.
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This reverts commit c24473ddff715ecec2e258a6eb38960cf8c8e98e, reversing
changes made to 009cba4fb8102102168ef32870892438327f3705.
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- added MOSFET model. Currently capacitances are not modelled.
This is a 3-pin model (Bulk connected to Source) with provisions to
extend it to 4-pin at a later stage.
- Add a capacitor generic model which is charge conserving.
Switch netlist to use this model instead of constant capacity model.
- Start putting constants into a central place.
Please expect minor timing differences due to a different numerical
path.
The cmos inverter example illustrates the analog implementation of a
cmos inverter gate. These were used a lot back in the 70s/80s to
generate sinus waves. The model should also be able to better emulate
4066 analog switches.
The addition of a relatively simple capacitor model is planned at a
later stage.
Expect everything from the MOSFET model at the current stage. Wrong
results as well as convergence issues and crashes.
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Despite the overhead - two devices more per transistor - this addition
significantly reduces computing time on switching conditions by reducing
the needed Newton-Raphson loops dramatically.
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128bit integers on kaby lake are not that much slower than 64bit. This
may be an option for MAME's attotime as well.
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Memory management in plib is now alignment-aware. All allocations
respect c++11 alignas. Selected classes like parray and aligned_vector
also provide hints (__builtin_assume_aligned) to g++ and clang.
The alignment optimizations have little impact on the current use cases.
They only become effective on bigger data processing.
What has a measurable impact is memory pooling. This speeds up netlist
games like breakout and pong by about 5%.
Tested with linux, macosx and windows cross builds. All features are
disabled since I can not rule out they may temporarily break more exotic
builds.
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will address it ASAP
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Set USE_MEMPOOL to 1 to try this (max 5% performance increase).
For mingw, there is no alignment support. This triggers -Wattribute
errors which due to -Werror crash the build.
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