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8d323848b3
- top-level Makefile: drop w11a/arty_bram - sys_w11a_s3: set BTOWIDTH 7 (was 6, must be > vmbox atowidth (6)) - RtclGet.ipp: use const& for oper() of string& and Rtime& - *.Doxyfile: bump version to 0.77 - comment and docu updates
64 lines
2.6 KiB
Markdown
64 lines
2.6 KiB
Markdown
# w11: PDP 11/70 CPU and SoC
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[](https://travis-ci.org/wfjm/w11)
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[](https://scan.coverity.com/projects/wfjm-w11)
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### Overview
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The project contains the VHDL code for a **complete DEC PDP-11 system**:
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a PDP-11/70 CPU with memory management unit, but without floating point unit,
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a complete set of mass storage peripherals
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(RK11/RK05, RL11/RL02, RK70/RP06, TM11/TU10)
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and a rather complete set of UNIBUS peripherals
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(DL11, LP11, PC11, and DEUNA),
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and last but not least a cache and memory controllers for SRAM, PSRAM and
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SDRAM (via Xilinx MIG core).
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The design is **FPGA proven**, runs currently on
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Digilent Arty, Basys3, CmodA7, Nexys4, Nexys3, Nexys2 and S3board boards
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and boots 5th Edition UNIX and 2.11BSD UNIX.
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For more information look into:
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- w11 project [home page](https://wfjm.github.io/home/w11/)
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and [blog](https://wfjm.github.io/blogs/w11/)
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- [change log](doc/CHANGELOG.md)
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and [installation notes](doc/INSTALL.md)
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- guides to build bit files and test benches
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with [Xilinx Vivado](doc/README_buildsystem_Vivado.md)
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and [Xilinx ISE](doc/README_buildsystem_ISE.md)
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- guides to [run test benches](doc/w11a_tb_guide.md)
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and to [boot operating systems](doc/w11a_os_guide.md)
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- known issues [general](doc/README_known_issues.md)
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and [w11a CPU](doc/w11a_known_issues.md)
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- the impatient readers can try their luck with the
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[quick start guide](doc/INSTALL_quickstart.md)
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A short description of the directory layout
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[is provided separately](https://wfjm.github.io/home/w11/impl/dirlayout.html),
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the top level directories are
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| Directory | Content |
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| --------- | ------- |
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| [doc](doc) | documentation |
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| [rtl](rtl) | HDL sources (mostly vhdl) |
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| [tools](tools) | many tools |
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### Note on freecores/w11
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The [freecores team](http://freecores.github.io/) created in 2014 a
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copy of almost all OpenCores cores in Github under
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[freecores](https://github.com/freecores). This created
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[freecores/w11](https://github.com/freecores/w11)
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which is
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[*outdated* and *not maintained*](https://github.com/freecores/w11/issues/1).
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***Only [wfjm/w11](https://github.com/wfjm/w11) is maintained***.
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### License
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This project is released under the
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[GPL V3 license](https://www.gnu.org/licenses/gpl-3.0.html),
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all files contain the disclaimer:
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This program is free software; you may redistribute and/or modify
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it under the terms of the GNU General Public License version 3.
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See License.txt in distribition directory for further details.
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The full text of the GPL license is in this directory as
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[License.txt](License.txt).
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