63477dd345
The keyboard should communicate at 1,200 Baud, but due to bugs in the SCC it's set to 9,600 Baud. The sun4c machines program the Baud rate generator dividers for the serial ports with 00:0e and the dividers for the keyboard/mouse ports with 00:7e. Therefore the ratio of Baud rates should be (0x7e + 2) / (0x0e + 2) = 128 / 16 = 8. However both the RS232 ports and the keyboard/mouse ports run at 9,600 Baud, when the keyboard/mouse ports should run at 1,200 Baud (which is 1/8 of 9,600 which matches the ratio of the divider values). I've artificially limited the rate the keyboard can transmit at to be no faster than it could at 1,200 Baud using a timer. I can remove this hack once we get correct SCC divider behaviour. I attempted to hook up the SCC interrupts to level 12 as specified in the SPARCstation-1 Programmer's Model in the table on Page 19. No interrupts seem to be generated, so either I've screwed this up somehow, the Sun isn't enabling interrupts, or there's another bug in the SCC emulation. Sorry if I've screwed it up - I won't be offended if someone replaces it wholesale. The keyboard receives the reset commands from the Sun and sends back the self test pass response, but the SCC seems to get a buffer overrun error. So it appears that the received data isn't being read out. I haven't been able to work out why. |
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| bgfx | ||
| docs | ||
| doxygen | ||
| hash | ||
| hlsl | ||
| ini/presets | ||
| keymaps | ||
| language | ||
| nl_examples | ||
| plugins | ||
| regtests | ||
| samples | ||
| scripts | ||
| src | ||
| tests | ||
| .drone.sec | ||
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| LICENSE.md | ||
| makefile | ||
| README.md | ||
| uismall.bdf | ||
MAME
Build status for tiny build only, containing just core parts of project
| OS/Compiler | Status |
|---|---|
| Linux GCC / OSX Clang |  |
| Windows MinGW |  |
What is MAME?
MAME originally stood for Multiple Arcade Machine Emulator.
MAME's purpose is to preserve decades of software history. As electronic technology continues to rush forward, MAME prevents this important "vintage" software from being lost and forgotten. This is achieved by documenting the hardware and how it functions. The source code to MAME serves as this documentation. 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?). Over time, MAME 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.
How to compile?
If you're on a *NIX or OSX system, it could be as easy as typing
make
for a MAME build,
make SUBTARGET=arcade
for an arcade-only build, or
make SUBTARGET=mess
for MESS build.
See the Compiling MAME page on our documentation site for more information, including prerequisites for Mac OS X and popular Linux distributions.
For recent versions of OSX you need to install Xcode including command-line tools and SDL 2.0.
For Windows users, we provide a ready-made build environment based on MinGW-w64.
Visual Studio builds are also possible, but you still need build environment based on MinGW-w64. In order to generate solution and project files just run:
make vs2015
or use this command to build it directly using msbuild
make vs2015 MSBUILD=1
Where can I find out more?
- Official MAME Development Team Site (includes binary downloads for MAME and MESS, wiki, forums, and more)
- Official MESS Wiki
- MAME Testers (official bug tracker for MAME and MESS)
Contributing
Coding standard
MAME source code should be viewed and edited with your editor set to use four spaces per tab. Tabs are used for initial indentation of lines, with one tab used per indentation level. Spaces are used for other alignment within a line.
Some parts of the code follow Allman style; some parts of the code follow K&R style -- mostly depending on who wrote the original version. Above all else, be consistent with what you modify, and keep whitespace changes to a minimum when modifying existing source. For new code, the majority tends to prefer Allman style, so if you don't care much, use that.
All contributors need to either add a standard header for license info (on new files) or inform us of their wishes regarding which of the following licenses they would like their code to be made available under: the BSD-3-Clause license, the LGPL-2.1, or the GPL-2.0.
License
The MAME project as a whole is distributed under the terms of the GNU General Public License, version 2 or later (GPL-2.0+), since it contains code made available under multiple GPL-compatible licenses. A great majority of files (over 90% including core files) are under the BSD-3-Clause License and we would encourage new contributors to distribute files under this license.
Please note that MAME is a registered trademark of Nicola Salmoria, and permission is required to use the "MAME" name, logo, or wordmark.
Copyright (C) 1997-2016 MAMEDev and contributors
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Please see LICENSE.md for further details.