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[/] [w11/] [tags/] [w11a_V0.74/] [rtl/] [w11a/] [pdp11.vhd] - Rev 38

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38 Tag final OpenCores release w11a_V0.74 wfjm 2728d 22h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
36 - Code base cleaned-up for vivado, fsm now inferred
- xsim support complete (but many issues to be resolved yet)
- Added configurable w11a cache
- Removed some never documented and now strategically obsolete designs		 wfjm 2897d 00h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
34 - Add CPU debug and monitoring units (dmhbpt,dmscnt,dmcmon) wfjm 3075d 19h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
30 - added RH70/RP/RM big disk support
- many cleanups		 wfjm 3305d 23h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
29 - added support for Vivado
- added support for Nexys4 and Basys3 boards
- added RL11 disk support
- lots of documentation updated		 wfjm 3371d 20h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
28 - the w11a rbus interface used so far a narrow dynamically adjusted
rbus->ibus window. Replaces with a 4k word window for whole IO page.
- utilize rlink protocol version 4 features in w11a backend
- use attn notifies to dispatch attn handlers
- use larger blocks (7*512 rather 1*512 bytes) for rdma transfers
- use labo and merge csr updates with last block transfer
- this combined reduces the number of round trips by a factor 2 to 3,
and in some cases the throughput accordingly.		 wfjm 3435d 20h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
27 - migrate to rlink protocol version 4
- Goals for rlink v4
- 16 bit addresses (instead of 8 bit)
- more robust encoding, support for error recovery at transport level
- add features to reduce round trips
- improved attention handling
- new 'list abort' command
- For further details see README_Rlink_V4.txt
- use own C++ based tcl shell tclshcpp instead of tclsh		 wfjm 3450d 23h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
25 - The div instruction gave wrong results in some corner cases when either
divisor or quotient were the largest negative integer (100000 or -32768).
This is corrected now, for details see ECO-026-div.txt
- some minor updates and fixes to support scripts
- xtwi usage and XTWI_PATH setup explained in INSTALL.txt		 wfjm 3583d 01h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
13 - interim release w11a_V0.532 (untagged)
- re-organize modules 'human I/O' interface on Digilent boards
- add test designs for 'human I/O' interface for atlys,nexys2, and s3board
- small updates in crc8 and dcm areas
- with one exception all vhdl sources use now numeric_std		 wfjm 4577d 03h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
9 - interim release w11a_V0.52 (untagged)
- migrate to rbus protocol verion 3
- reorganize rbus and rlink modules, many renames		 wfjm 4899d 02h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
8 - interim release w11a_V0.51 (untagged)
- migrate to ibus protocol verion 2
- nexys2 systems now with DCM derived system clock supported
- sys_w11a_n2 now runs with 58 MHz clksys		 wfjm 4934d 16h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd
2 initial source upload (no docs yet) wfjm 5075d 21h /w11/tags/w11a_V0.74/rtl/w11a/pdp11.vhd

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