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86 Commits

Author SHA1 Message Date
Florent Kermarrec 9adf3f02f2 fhdl/verilog: add simulation parameter to avoid simulation tricks in synthetizable code 
it's generally better to have identical code between simulations and synthesis, but here tricks inserted for simulation are clearly expected to be simplified by synthesis tools, so it's better not inserting them.
 2015-03-17 00:40:26 +01:00
Florent Kermarrec e946f6e453 fhdl/verilog: do not use initial begin in _printinit (not accepted by all synthesis tools ex: Synplify Pro does not accept it) 2015-03-16 23:47:07 +01:00
Sebastien Bourdeauducq a4782899f6 fhdl/verilog: fix tristate to instance connection 2014-10-29 18:18:17 +08:00
Florent Kermarrec dbaeaf7833 remove trailing whitespaces 2014-10-17 17:08:46 +08:00
Sebastien Bourdeauducq 135a4fea25 fhdl/verilog: fix representation of negative integers 
Give the explicit two's complement representation for the given bit width.

This results in less readable code compared to using unary minus,
but fixes a bug when trying to represent the most negative integer.
 2013-12-11 22:26:10 +01:00
Robert Jordens 8d3d61ba98 fhdl.size: rename to bitcontainer 2013-12-03 22:51:52 +01:00
Nina Engelhardt 6f9f08f6eb add ternary operator sel ? a : b 2013-08-12 13:15:56 +02:00
Sebastien Bourdeauducq eb1417c5ed fhdl: move insert_resets to tools 2013-08-08 11:32:58 +02:00
Nina Engelhardt 61b8958953 fix synthesis translate on/off switch 2013-07-26 15:55:16 +02:00
Sebastien Bourdeauducq b7ed19c6c5 fhdl: do not export Fragment 2013-07-25 18:52:54 +02:00
Sebastien Bourdeauducq 71b89e4c46 fhdl/verilog: lower complex slices before reset insertion 2013-06-30 14:32:47 +02:00
Sebastien Bourdeauducq 080afdc3f9 fhdl/verilog: fix signedness rules for comparison 2013-06-26 22:45:47 +02:00
Sebastien Bourdeauducq b56cb3cefc fhdl/verilog: improve error reporting 2013-06-24 19:44:25 +02:00
Sebastien Bourdeauducq 70ffe86356 New migen.fhdl.std to simplify imports + len->flen 2013-05-22 17:11:09 +02:00
Sebastien Bourdeauducq b862b070d6 fhdl/verilog: recursive Special lowering 2013-04-25 14:56:26 +02:00
Florent Kermarrec f599fe4ade Support for resetless clock domains 2013-04-23 11:54:05 +02:00
Sebastien Bourdeauducq 75d33a0c05 fhdl/verilog/_printinit: initialize undriven Special inputs (bug reported by Florent Kermarrec) 2013-04-11 18:55:49 +02:00
Sebastien Bourdeauducq 574becc1fc fhdl/specials: clean up clock domain handling 2013-03-26 11:58:34 +01:00
Sebastien Bourdeauducq 17f2b17654 fhdl/verilog: optionally disable clock domain creation 2013-03-18 18:45:19 +01:00
Sebastien Bourdeauducq 7a06e9457c Lowering of Special expressions + support ClockSignal/ResetSignal 2013-03-18 18:36:50 +01:00
Sebastien Bourdeauducq bd8bbd9305 Make ClockDomains part of fragments 2013-03-15 18:17:33 +01:00
Sebastien Bourdeauducq ecfe1646ec fhdl/verilog: implicit get_fragment 2013-03-12 16:16:06 +01:00
Sebastien Bourdeauducq 6fa30053bf fhdl/verilog: tristate outputs are always wire 2013-03-06 11:30:52 +01:00
Sebastien Bourdeauducq c10622f5e2 fhdl/verilog: insert reset before listing signals 2013-02-27 18:10:04 +01:00
Sebastien Bourdeauducq 7c4e6c35e5 fhdl/verilog: support special lowering and overrides 2013-02-23 19:03:16 +01:00
Sebastien Bourdeauducq 49cfba50fa New 'specials' API 2013-02-22 17:56:35 +01:00
Sebastien Bourdeauducq dc93a231c6 fhdl: tristate support 2013-02-15 00:17:24 +01:00
Sebastien Bourdeauducq 3201554f76 fhdl/verilog: fix spurious clock/reset signals on multiple calls to convert() 2013-01-23 15:13:06 +01:00
Sebastien Bourdeauducq badba89686 fhdl: support nested statement lists 2013-01-05 14:18:15 +01:00
Sebastien Bourdeauducq 70e97e0456 Fix various errors from new bitwidth/signedness system conversion 2012-11-29 23:36:55 +01:00
Sebastien Bourdeauducq 261166d92b fhdl/verilog: make signal behave as integers in arithmetic (MyHDL style) 
See http://jandecaluwe.com/hdldesign/counting.html
 2012-11-29 22:59:54 +01:00
Sebastien Bourdeauducq 50ed73c937 New specification for width and signedness 2012-11-29 21:22:38 +01:00
Sebastien Bourdeauducq 6eebfce44a Refactor Case 2012-11-29 01:11:15 +01:00
Sebastien Bourdeauducq fee22a4631 Remove Constant 2012-11-28 23:18:43 +01:00
Sebastien Bourdeauducq 9d3e218863 fhdl: use object creation counter (HUID) as hash. This finally makes the generated code textually the same across runs. 2012-11-23 18:38:03 +01:00
Sebastien Bourdeauducq 51e2e6ecd0 fhdl/verilog: remove empty cases 2012-11-18 16:32:51 +01:00
Sebastien Bourdeauducq c273866b08 fhdl: support expressions in instance ports 2012-09-22 20:51:10 +02:00
Sebastien Bourdeauducq 2fc9cae88a fhdl: support inverted clock ports in instances 2012-09-22 20:50:49 +02:00
Sebastien Bourdeauducq 2e14569b5c fhdl/verilog: sort clock domains by name 2012-09-11 10:00:03 +02:00
Sebastien Bourdeauducq 9a18a9df3f fhdl: list signals in execution order 2012-09-11 09:59:37 +02:00
Sebastien Bourdeauducq e16353a281 Multi-clock design support + new instance API 2012-09-10 23:45:02 +02:00
Sebastien Bourdeauducq 8de192dfbd x.bv.width -> len(x) 2012-07-13 18:32:54 +02:00
Sebastien Bourdeauducq 7f47a2568a fhdl: remove _StatementList 2012-07-13 17:07:56 +02:00
Sebastien Bourdeauducq ed27783a53 fhdl: arrays (TODO: use correct BV for intermediate signals) 2012-07-09 15:16:38 +02:00
Sebastien Bourdeauducq 398ece8fe2 fhdl/verilog: add option to display which comb blocks are run 
This is a debug hack to help find combinatorial loops in designs.
 2012-04-30 16:38:40 -05:00
Sebastien Bourdeauducq 2a4e49e381 fhdl: phase out pads 2012-04-02 19:21:43 +02:00
Sebastien Bourdeauducq 623e8e436a fhdl/verilog: do not attempt to initialize instance and mem output signals 2012-04-02 12:59:42 +02:00
Sebastien Bourdeauducq f3ae22f488 fhdl/verilog: initialize internal read-only signals with their reset values 2012-04-01 16:39:11 +02:00
Sebastien Bourdeauducq 90184b22d2 fhdl/verilog: fix signed constant conversion 2012-03-06 16:45:44 +01:00
Sebastien Bourdeauducq a1ad30faab fhdl/verilog: properly connect instance inouts 2012-02-17 11:08:41 +01:00