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105 commits

Author SHA1 Message Date
Florent Kermarrec
a5f495aeac fhdl/verilog: add reserved keywords 2015-05-23 14:01:08 +02:00
Florent Kermarrec
67702f25ab migen/fhdl/verilog: _printheader/_printcomb, remove default value of arguments which are not used in internal functions. (thanks sb) 2015-04-24 12:54:08 +02:00
Florent Kermarrec
bc30fc57e7 migen/fhdl: give explicit names to syntax specialization when asic_syntax is used 2015-04-24 12:14:14 +02:00
Guy Hutchison
28dde1e38f fhdl/verilog: add flag to produce ASIC-friendly output 2015-04-21 09:52:14 +08:00
Florent Kermarrec
3f15699964 revert fhdl/verilog: avoid reg initialization in printheader when reset is not an int. (sorry merge issue) 2015-04-13 21:47:55 +02:00
Florent Kermarrec
1051878f4c global: pep8 (E302) 2015-04-13 20:45:35 +02:00
Florent Kermarrec
17e5249be0 global: pep8 (replace tabs with spaces) 2015-04-13 20:07:07 +02:00
Florent Kermarrec
ff23960657 fhdl/verilog: avoid reg initialization in printheader when reset is not an int. 
We should be able to reset a signal with the value of another one. Without this change it's not possible to do so since synthesis tools do not support initializing a signal from another one.
 2015-04-10 17:18:07 +02:00
Sebastien Bourdeauducq
e1702c422c introduce conversion output object (prevents file IO in FHDL backends) 2015-04-08 20:28:23 +08:00
Sebastien Bourdeauducq
c169f0b189 Revert "migen: create VerilogConvert and EDIFConvert classes and return it with convert functions" 
This reverts commit f03aa76292.
 2015-03-30 19:41:16 +08:00
Sebastien Bourdeauducq
dc88295338 Revert "migen/fhdl: pass fdict filename --> contents to specials" 
This reverts commit ea04947519.
 2015-03-30 19:41:13 +08:00
Sebastien Bourdeauducq
b1c811a3d1 Revert "migen/fhdl/specials: use fdict to pass memory initialization files to VerilogConvert and print them in __str__ method" 
This reverts commit 95cfc444e6.
 2015-03-30 19:41:04 +08:00
Florent Kermarrec
95cfc444e6 migen/fhdl/specials: use fdict to pass memory initialization files to VerilogConvert and print them in __str__ method 2015-03-30 11:37:59 +02:00
Florent Kermarrec
ea04947519 migen/fhdl: pass fdict filename --> contents to specials 2015-03-30 11:37:57 +02:00
Florent Kermarrec
f03aa76292 migen: create VerilogConvert and EDIFConvert classes and return it with convert functions 2015-03-30 11:37:55 +02:00
Sebastien Bourdeauducq
7fa1cd72a8 fhdl/verilog: fix dummy signal initial event 2015-03-19 00:24:30 +01:00
Florent Kermarrec
c0fb0ef600 fhdl/verilog: change the way we initialize reg: reg name = init_value; 
This allows simplifications (init in _printsync and _printinit no longer needed)
 2015-03-18 15:05:26 +01:00
Florent Kermarrec
ea9c1b8e69 fhdl/verilog: revert "fhdl/verilog: add simulation parameter to avoid simulation tricks in synthetizable code" 
This probably breaks simulation with Icarus Verilog (and others simulators?)
 2015-03-18 14:59:22 +01:00
Sebastien Bourdeauducq
bdc47b205a Revert "fhdl/verilog: do not use initial begin in _printinit (not accepted by all synthesis tools ex: Synplify Pro does not accept it)" 
This breaks simulations, and we will try to use the "reg name = value" syntax instead.

This reverts commit e946f6e453.
 2015-03-18 12:08:25 +01:00
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