Miodrag Milanovic
3b17c9018a
Unify usage of noflatten among architectures
2019-01-04 11:37:25 +01:00
whitequark
fd21564deb
flowmap: improve debug graph output. NFC.
2019-01-04 03:30:04 +00:00
whitequark
7850a0c28a
flowmap: add link to longer version of paper. NFC.
2019-01-04 02:33:10 +00:00
Clifford Wolf
d98fe8ce1f
Merge pull request #775 from whitequark/opt_flowmap
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flowmap: new techmap pass
2019-01-03 17:03:18 +01:00
whitequark
07af772a72
flowmap: new techmap pass.
2019-01-03 14:28:19 +00:00
Clifford Wolf
0fc6e2bfcf
Merge pull request #770 from whitequark/opt_expr_cmp
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opt_expr: refactor and improve simplification of comparisons
2019-01-02 17:34:04 +01:00
whitequark
bf8db55ef3
opt_expr: improve simplification of comparisons with large constants.
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The idea behind this simplification is that a N-bit signal X being
compared with an M-bit constant where M>N and the constant has Nth
or higher bit set, it either always succeeds or always fails.
However, the existing implementation only worked with one-hot signals
for some reason. It also printed incorrect messages.
This commit adjusts the simplification to have as much power as
possible, and fixes other bugs.
2019-01-02 15:45:28 +00:00
Clifford Wolf
56ca1e6afc
Merge pull request #755 from Icenowy/anlogic-dram-init
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anlogic: implement DRAM initialization
2019-01-02 16:28:18 +01:00
Clifford Wolf
b236faffa1
Merge branch 'master' of github.com:YosysHQ/yosys
2019-01-02 15:53:50 +01:00
Clifford Wolf
979de95cf6
Merge pull request #750 from Icenowy/anlogic-ff-init
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Initialization of Anlogic DFFs
2019-01-02 15:52:22 +01:00
Clifford Wolf
2e606b1802
Merge pull request #773 from whitequark/opt_lut_elim_fixes
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opt_lut: elimination fixes
2019-01-02 15:45:29 +01:00
Clifford Wolf
da1c8d8d3d
Merge pull request #772 from whitequark/synth_lut
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synth: add k-LUT mode
2019-01-02 15:44:57 +01:00
Clifford Wolf
00330c741a
Merge pull request #771 from whitequark/techmap_cmp2lut
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cmp2lut: new techmap pass
2019-01-02 15:43:10 +01:00
Clifford Wolf
1eb101a38a
Improve VerificImporter support for writes to asymmetric memories
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-02 15:33:43 +01:00
Clifford Wolf
50b09de033
Fix VerificImporter asymmetric memories error message
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-02 15:05:23 +01:00
Clifford Wolf
16bb823db8
Merge pull request #769 from whitequark/typos
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Fix typographical and grammatical errors and inconsistencies
2019-01-02 14:47:18 +01:00
whitequark
efa278e232
Fix typographical and grammatical errors and inconsistencies.
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The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.
DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint
More hits were found by looking through comments and strings manually.
2019-01-02 13:12:17 +00:00
whitequark
c55dfb8369
opt_lut: reflect changes in sigmap.
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Otherwise, some LUTs will be missed during elimination.
2019-01-02 10:21:58 +00:00
whitequark
06143ab33f
opt_lut: use a worklist, and revisit cells affected by elimination.
2019-01-02 09:36:32 +00:00
whitequark
f7363ac508
opt_lut: count eliminated cells, and set opt.did_something for them.
2019-01-02 09:14:43 +00:00
whitequark
17b2831356
synth_ice40: use 4-LUT coarse synthesis mode.
2019-01-02 08:25:55 +00:00
whitequark
18174202a9
synth: add k-LUT mode.
2019-01-02 08:25:03 +00:00
whitequark
fdff32dd73
synth: improve script documentation. NFC.
2019-01-02 08:05:44 +00:00
whitequark
a91892bba4
cmp2lut: new techmap pass.
2019-01-02 07:53:31 +00:00
whitequark
4fd458290c
opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI.
2019-01-02 05:11:29 +00:00
whitequark
9e9846a6ea
opt_expr: refactor simplification of signed X>=0 and X<0. NFCI.
2019-01-02 03:01:25 +00:00
whitequark
8e53d2e0bf
opt_expr: simplify any unsigned comparisons with all-0 and all-1.
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Before this commit, only unsigned comparisons with all-0 would be
simplified. This commit also makes the code handling such comparisons
to be more rigorous and not abort on unexpected input.
2019-01-02 02:45:49 +00:00
Clifford Wolf
4b9f619349
Merge pull request #768 from whitequark/opt_lut_elim
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opt_lut: eliminate LUTs evaluating to constants or inputs
2019-01-01 11:13:48 +01:00
whitequark
42c356c49c
opt_lut: eliminate LUTs evaluating to constants or inputs.
2018-12-31 23:55:40 +00:00
Clifford Wolf
0a840dd883
Fix handling of (* keep *) wires in wreduce
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-12-31 16:37:40 +01:00
Clifford Wolf
e09e49ca54
Merge pull request #766 from Icenowy/anlogic-latches
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anlogic: add latch cells
2018-12-31 15:52:01 +01:00
Larry Doolittle
ebe9351f82
Fix 7 instances of add_share_file to add_gen_share_file
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in techlibs/ecp5/Makefile.inc to permit out-of-tree builds
2018-12-29 12:53:12 +01:00
Larry Doolittle
99706b3bf4
Squelch a little more trailing whitespace
2018-12-29 12:46:54 +01:00
Icenowy Zheng
1b36944299
anlogic: add latch cells
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Add latch cells to Anlogic cells replacement library by copying other
FPGAs' latch code to it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
2018-12-25 22:47:46 +08:00
Clifford Wolf
245724a504
Merge pull request #761 from whitequark/proc_clean_partial
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proc_clean: remove any empty cases, if possible to do safely
2018-12-23 16:16:06 +01:00
Clifford Wolf
6dad191377
Add "read_ilang -[no]overwrite"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-12-23 15:45:09 +01:00
Clifford Wolf
d938ce7ab6
Merge branch 'master' of github.com:YosysHQ/yosys
2018-12-23 15:44:19 +01:00
whitequark
18291c20d2
proc_clean: remove any empty cases if all cases use all-def compare.
2018-12-23 09:04:30 +00:00
Clifford Wolf
e5eb3d2c8a
Merge pull request #757 from whitequark/manual_mem
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manual: document $meminit cell and memory_* passes
2018-12-22 20:12:18 +01:00
whitequark
b784440857
proc_clean: remove any empty cases at the end of the switch.
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Previously, only completely empty switches were removed.
2018-12-22 09:04:46 +00:00
whitequark
182d84ad54
manual: make description of $meminit ports match reality.
2018-12-21 23:04:31 +00:00
Clifford Wolf
ee8a7589e0
Merge pull request #758 from whitequark/tcl_script_args
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tcl: add support for passing arguments to scripts
2018-12-21 17:56:43 +01:00
Clifford Wolf
29a82acb2e
Merge pull request #759 from whitequark/memory_collect_init_x
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memory_collect: do not truncate 'x from \INIT
2018-12-21 17:39:52 +01:00
Benedikt Tutzer
b9288b216d
Make can now install Python libraries to system path
2018-12-21 14:08:23 +01:00
whitequark
0c318e7db5
memory_collect: do not truncate 'x from \INIT.
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The semantics of an RTLIL constant that has less bits than its
declared bit width is zero padding. Therefore, if the output of
memory_collect will be used for simulation, truncating 'x from
the end of \INIT will produce incorrect simulation results.
2018-12-21 02:01:27 +00:00
whitequark
c04908c997
manual: fix typos.
2018-12-20 07:59:40 +00:00
whitequark
2ca237e086
tcl: add support for passing arguments to scripts.
2018-12-20 07:32:24 +00:00
whitequark
a9ff81dd82
manual: document $meminit cell and memory_* passes.
2018-12-20 04:54:31 +00:00
Icenowy Zheng
90d00182cf
anlogic: implement DRAM initialization
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As the TD tool doesn't accept the DRAM cell to contain unknown values in
the initial value, the initialzation support of DRAM is previously
skipped.
Now add the support by add a new pass to determine unknown values in the
initial value.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
2018-12-20 07:56:15 +08:00
Clifford Wolf
93d44bb9a6
Merge pull request #752 from Icenowy/anlogic-lut-cost
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Anlogic: let LUT5/6 have more cost than LUT4-
2018-12-19 19:52:31 +01:00