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543 commits

Author SHA1 Message Date
whitequark 8d1639a5a8 hdl, back: add and use SignalSet/SignalDict. 2018-12-17 17:21:29 +00:00
whitequark 8c4de99c0d hdl.ast: factor out _MappedKeyDict, _MappedKeySet. NFC. 2018-12-17 17:21:29 +00:00
whitequark f1e390cbc9 back.rtlil: update for Yosys master. 2018-12-17 15:50:43 +00:00
whitequark 850674637a back.rtlil: implement Array. 2018-12-17 01:15:23 +00:00
whitequark 87cd045ac3 back.rtlil: implement Part. 2018-12-17 01:05:08 +00:00
whitequark f968678937 back.rtlil: handle reset_less domains. 2018-12-16 23:52:47 +00:00
whitequark 015998eba9 hdl.dsl: add clock domain support. 2018-12-16 23:51:24 +00:00
whitequark b2f828387a hdl.dsl: cleanup. NFC. 2018-12-16 23:44:00 +00:00
whitequark 91b7561a00 back.rtlil: extract _StatementCompiler. NFC. 2018-12-16 22:26:58 +00:00
whitequark b9a0af8bde back.rtlil: simplify. NFC. 2018-12-16 21:00:00 +00:00
whitequark 635094350f back.rtlil: properly escape strings in attributes. 2018-12-16 20:27:36 +00:00
whitequark 33f32a25f5 back.rtlil: prepare for Yosys sigspec slicing improvements. 
See YosysHQ/yosys#741.
 2018-12-16 18:03:14 +00:00
whitequark db5fd1e4c4 compat.fhdl.structure: only convert to bool in If/Elif if necessary. 2018-12-16 17:41:42 +00:00
whitequark 9bce35098f back.rtlil: avoid illegal slices. 
Not sure what to do with {} [] on LHS yet--fix Yosys?
 2018-12-16 17:41:11 +00:00
whitequark e86104d3a6 back.rtlil: use slicing to match shape when reducing width. 2018-12-16 16:20:45 +00:00
whitequark 2833b36c73 back.rtlil: don't emit a slice if all bits are used. 2018-12-16 16:05:38 +00:00
whitequark 9794e732e2 back.rtlil: reorganize value compiler into LHS/RHS. 
This also implements Cat on LHS.
 2018-12-16 13:33:34 +00:00
whitequark ed39748889 back.rtlil: fix naming. NFC. 2018-12-16 11:26:31 +00:00
whitequark 2be76fda3c hdl.xfrm: separate AST traversal from AST identity mapping. 
This is useful because backends don't generally want or need AST
identity mapping (unlike all other transforms) and when adding a new
node, it results in confusing type errors.
 2018-12-16 11:25:52 +00:00
whitequark 286a8009c8 compat.fhdl: reexport Array. 2018-12-16 10:39:54 +00:00
whitequark d4e8d3e95a back.pysim: implement LHS for Part, Slice, Cat, ArrayProxy. 2018-12-16 10:31:42 +00:00
whitequark d9579219ee test.sim: generalize assertOperator. NFC. 2018-12-15 21:08:29 +00:00
whitequark bdb8db2826 back.pysim: add (stub) LHSValueCompiler. 2018-12-15 21:01:38 +00:00
whitequark 20a04bca88 back.pysim: implement Part. 2018-12-15 20:58:06 +00:00
whitequark 54fb999c99 back.pysim: implement ArrayProxy. 2018-12-15 19:37:36 +00:00
whitequark 80c5343600 hdl.ast: implement Array and ArrayProxy. 2018-12-15 17:16:31 +00:00
whitequark c6e7a93717 hdl: appropriately rename tests. NFC. 2018-12-15 16:13:53 +00:00
whitequark f603b735e8 hdl.ast: improve ClockSignal, ResetSignal documentation. 2018-12-15 14:58:31 +00:00
whitequark 790eb05a92 Rename fhdl→hdl, genlib→lib. 2018-12-15 14:25:31 +00:00
whitequark b5a1efa0c8 Move star imports to make from nmigen import * usable. 2018-12-15 14:20:10 +00:00
whitequark 1f10bd96b9 Determine Migen's API surface and document compatibility summary. 
This also reorganizes README to more clearly describe what nMigen is,
since it was getting quite outdated.
 2018-12-15 11:52:30 +00:00
whitequark b70340c0da pyback.sim: test Slice, Cat, Repl. 2018-12-15 10:09:14 +00:00
whitequark db4600d52b fhdl.ast, back.pysim: implement shifts. 2018-12-15 09:58:30 +00:00
whitequark 46f5addf05 fhdl.ast: refactor Operator.shape(). NFC. 2018-12-15 09:46:20 +00:00
whitequark 3a8685c352 Consistently use '{!r}' in and only in TypeError messages. 2018-12-15 09:31:58 +00:00
whitequark f9f7921959 fhdl.ir: test iter_comb(), iter_sync() and iter_signals(). 2018-12-15 09:26:36 +00:00
whitequark f5e8c9033d fhdl.ir: fix incorrect uses of positive to say non-negative. 
Also test Part and Slice properly.
 2018-12-15 09:26:23 +00:00
whitequark 9010805040 compat.fhdl.structure: handle If/Elif with multi-bit condition. 2018-12-15 00:10:54 +00:00
whitequark ecea721f43 compat.fhdl.module: allow adding native submodules to compat modules. 2018-12-14 23:56:50 +00:00
whitequark 1c7b43ea49 Fix deprecations in Python 3.7. 2018-12-14 23:56:50 +00:00
whitequark 7108111ad0 back.pysim: preserve process locations through add_sync_process(). 2018-12-14 23:27:36 +00:00
whitequark c4ba5a3915 fhdl.ast: clean up stub error messages. NFC. 2018-12-14 23:07:16 +00:00
whitequark 2001359b66 fhdl.ir: automatically flatten hierarchy to resolve driver conflicts. 
Fixes #5.
 2018-12-14 22:48:17 +00:00
whitequark 579feaba4e fhdl.ir: Fragment.{drive→add_driver} 2018-12-14 20:58:29 +00:00
whitequark 0015713bfb back.pysim: count delta cycles separately to avoid clock drift. 2018-12-14 20:52:41 +00:00
whitequark a6a8703a0e back.pysim: simplify. 2018-12-14 20:45:45 +00:00
whitequark 7e3cf26cf8 back.pysim: revert 70ebc6f2. 2018-12-14 19:46:08 +00:00
whitequark 71304c9fe7 back.pysim: fix implicit boolean conversion. 2018-12-14 19:08:06 +00:00
whitequark fe5fb34fae back.pysim: squash one level of hierarchy. 
There's really no point in the "top" node.
 2018-12-14 18:53:21 +00:00
whitequark 70ebc6f2c1 back.pysim: implement blocking assignment semantics correctly. 2018-12-14 18:47:12 +00:00
whitequark 120d817123 back.pysim: undriven sync signals should return to previous value. 2018-12-14 17:25:48 +00:00
whitequark 4f5b4a9bf4 back.pysim: in simulator sync processes, start by waiting for a tick. 
This matches Migen behavior and also makes more sense.
 2018-12-14 17:05:11 +00:00
whitequark e230383aac back.pysim: make initial phase configurable. 2018-12-14 16:46:16 +00:00
whitequark 0ef5ced492 compat.sim: match clock period. 2018-12-14 16:39:52 +00:00
whitequark 17d26c8329 compat: add run_simulation shim. 2018-12-14 16:22:18 +00:00
whitequark 88970ee29f pysim.back: fix add_sync_process wrapper to handle signals correctly. 2018-12-14 16:21:53 +00:00
whitequark 3bc3647380 compat.fhdl.module: fix specials. 2018-12-14 16:14:08 +00:00
whitequark 3b23645fb7 compat: add fhdl.specials.TSTriple shim. 2018-12-14 16:09:51 +00:00
whitequark 7200346249 genlib.io: import TSTriple from Migen. 2018-12-14 16:09:51 +00:00
whitequark 50ba443f92 fhdl.ast: fix Switch with constant test. 2018-12-14 16:09:51 +00:00
whitequark a0d555a9fc compat: add genlib.cdc.MultiReg shim. 2018-12-14 16:01:38 +00:00
whitequark baba47251c compat.fhdl.module: update deprecation messages. 2018-12-14 16:01:38 +00:00
whitequark 9307a31678 back.pysim: Simulator({gtkw_signals→traces}=). 2018-12-14 15:23:22 +00:00
whitequark e3f32a1faf back.pysim: better naming. NFC. 2018-12-14 15:21:13 +00:00
whitequark 474d46ced8 back.pysim: implement most operators and add tests. 2018-12-14 14:21:22 +00:00
whitequark d9aaf0114b back.pysim: close .vcd/.gtkw files on context manager exit. 2018-12-14 13:59:03 +00:00
whitequark 1655b59d1b back.pysim: show more legible names for processes in errors. 2018-12-14 13:50:19 +00:00
whitequark 625c55a3b8 back.pysim: throw exceptions back at processes. 2018-12-14 13:43:25 +00:00
whitequark 654722ce14 back.pysim: add gtkw traces even more robustly. 2018-12-14 13:43:08 +00:00
whitequark 7d3f7f277a back.pysim: accept (and evaluate) generator functions. 2018-12-14 13:32:30 +00:00
whitequark 7fc9f98b98 back.pysim: skip VCD signal population if VCD is not requested. 2018-12-14 13:32:30 +00:00
whitequark 3ad79ec690 back.pysim: allow processes to evaluate expressions. 2018-12-14 13:32:30 +00:00
whitequark 151d079f01 fhdl.ir: oops, we defined DomainError twice. 2018-12-14 12:59:54 +00:00
whitequark dd00b5e2d6 back.pysim: more general clean-up. 2018-12-14 12:46:04 +00:00
whitequark 1b7f8c7950 back.pysim: general clean-up. 2018-12-14 12:22:03 +00:00
whitequark 105113f1d8 back.pysim: accept any valid assignments from processes. 2018-12-14 12:18:41 +00:00
whitequark 240a40c2c2 back.pysim: robustly retrieve vcd names for clk/rst when writing gtkw. 2018-12-14 10:57:13 +00:00
whitequark 7d91dd56c8 fhdl.xfrm: implement DomainLowerer. 2018-12-14 10:56:53 +00:00
whitequark b34c1a9ad0 back.pysim: undriven comb signals should return to reset value. 2018-12-14 09:12:38 +00:00
whitequark b58715c5dc ast, back.pysim: allow specifying user-defined decoders for signals. 2018-12-14 09:02:29 +00:00
whitequark bb843cb40c back.pysim: fix completely broken codegen for Switch. 2018-12-14 08:51:36 +00:00
whitequark 6aefd0c04c back.pysim: raise an exception if delta cycles blow a process deadline. 2018-12-14 08:10:21 +00:00
whitequark a10791e160 back.pysim: if requested, write a gtkw file with a useful preset. 2018-12-14 08:04:29 +00:00
whitequark cb998d891b back.pysim: explain how delta cycles work. 2018-12-14 07:26:26 +00:00
whitequark e4d08d2855 back.pysim: delay clock processes by one half period. 
Makes it easier to see initial delta cycles.
 2018-12-14 05:17:43 +00:00
whitequark 3bb7a87e0f back.pysim: implement "sync processes", like migen.sim generators. 2018-12-14 05:13:58 +00:00
whitequark d791b77cc8 back.pysim: allow suspending processes until a tick in a domain. 2018-12-14 04:33:06 +00:00
whitequark 3e59d857e1 back.pysim: use bare ints for signal values (-5% runtime). 2018-12-14 03:05:57 +00:00
whitequark b09f4b10ee back.pysim: collect handlers before running (-5% runtime). 2018-12-13 18:34:44 +00:00
whitequark a7ebc02bdd back.pysim: allow multiple registered handlers per signal. 2018-12-13 18:28:11 +00:00
whitequark 6a4004ef8d back.pysim: fix handling of process termination. 2018-12-13 18:17:58 +00:00
whitequark fb27c2520b back.pysim: new simulator backend (WIP). 2018-12-13 18:02:46 +00:00
whitequark 71f1f717c4 fhdl.cd: rename ClockDomain signals together with domain. 2018-12-13 15:24:55 +00:00
whitequark 07c818e077 fhdl.ir: move Fragment prepare logic from back.rtlil. 2018-12-13 14:34:07 +00:00
whitequark ac498414ab back.verilog: remove debug code. 2018-12-13 13:42:54 +00:00
whitequark 90f1503c91 fhdl.ir: record port direction explicitly. 
No point in recalculating this in the backend when writing RTLIL or
Verilog port directions.
 2018-12-13 13:12:31 +00:00
whitequark 6251c95d4e compat.genlib.fsm: import/wrap Migen code. 2018-12-13 12:41:19 +00:00
whitequark 9661e897e6 fhdl.ir: a subfragment's input that we don't drive is also our input. 2018-12-13 11:50:56 +00:00
whitequark bb04c9e0da fhdl, back: trace and emit source locations of values. 2018-12-13 11:44:06 +00:00
whitequark 859c2dbcf0 back.rtlil: never give subfragment cells names starting with $. 2018-12-13 11:30:16 +00:00
whitequark b150f1915d fhdl.ir: don't crash propagataing ports in empty fragments. 2018-12-13 11:25:49 +00:00
whitequark 72257b6935 fhdl.ir: implement clock domain propagation. 2018-12-13 11:01:03 +00:00
whitequark fde2471963 fhdl.ir: remove iter_domains(). 2018-12-13 10:18:57 +00:00
whitequark f4340c19bb fhdl: cd_name→domain. 2018-12-13 10:15:01 +00:00
whitequark c5087edfa5 fhdl.cd: add tests. 2018-12-13 09:19:16 +00:00
whitequark 9bee90f1bd fhdl.xfrm: implement DomainRenamer. 2018-12-13 08:57:14 +00:00
whitequark 8963ab5d9f fhdl.xfrm: add test for ControlInserter with subfragments. 2018-12-13 08:45:10 +00:00
whitequark 19aa404628 fhdl.xfrm: add tests for ResetInserter, CEInserter. 2018-12-13 08:39:02 +00:00
whitequark b1a89ef5fd fhdl.ir: add tests for port propagation. 2018-12-13 08:09:39 +00:00
whitequark a797e27573 fhdl.dsl: add tests for lowering. 99% branch coverage. 2018-12-13 07:33:59 +00:00
whitequark d2e2d00e45 fhdl.cd: rename ClockDomain.{reset→rst}. 2018-12-13 07:27:27 +00:00
whitequark e0a81edf4d fhdl.dsl: add tests for submodules. 2018-12-13 07:24:28 +00:00
whitequark 932f1912a2 fhdl.dsl: use less error-prone Switch/Case two-level syntax. 2018-12-13 07:11:06 +00:00
whitequark f70ae3bac5 fhdl.dsl: add tests for d.comb/d.sync, If/Elif/Else. 2018-12-13 06:06:51 +00:00
whitequark 5b8708017e fhdl.ast: fix Switch._?hs_signals() for switch without statements. 2018-12-13 05:00:44 +00:00
whitequark 4e32f6b8de back.verilog: detect undriven public wires using Yosys. 
This should never happen, and is certainly a logic bug in nMigen.
 2018-12-13 04:59:48 +00:00
whitequark 27d3dfc453 back.rtlil: fix swapped operands in sync assign. 2018-12-13 04:34:22 +00:00
whitequark 6c7f98e964 back.rtlil: explain logic for CD reset insertion. 2018-12-13 03:51:00 +00:00
whitequark 2c67a620ee back.rtlil: explicitly set the top module. 2018-12-13 03:50:04 +00:00
whitequark 4df5c5de65 fhdl.ir: explain how port enumeration works. 2018-12-13 03:31:13 +00:00
whitequark f86ec1e7ef back.rtlil: explain how RTLIL conversion works. 2018-12-13 03:22:01 +00:00
whitequark bfd0011aee fhdl.ir: make sure clocks and resets of used CDs appear as inputs. 2018-12-13 02:43:22 +00:00
whitequark a17a9e355d back.rtlil: give clocks and resets nicer names. 2018-12-13 02:43:02 +00:00
whitequark 22c76e5f90 compat.fhdl.module: implement finalization. 2018-12-13 02:36:15 +00:00
whitequark b42620e490 back.rtlil: match shape of $mux ports A/B/Y. 2018-12-13 02:35:46 +00:00
whitequark 17767642be tracer: add support for Python 3.7. 2018-12-13 02:20:00 +00:00
whitequark f0f4c0ce61 fhdl.ast: bits_sign→shape. 2018-12-13 02:06:58 +00:00
whitequark dc486ad8b9 fhdl.ast: add tests for most logic. 2018-12-13 02:06:55 +00:00
whitequark b4dab74b2e compat.fhdl.{module,structure}: import/wrap Migen code (WIP). 2018-12-12 15:47:34 +00:00
whitequark 356852a570 compat.fhdl.bitcontainer: import/wrap Migen code. 2018-12-12 15:22:34 +00:00
whitequark 1d4d00aac6 fhdl.ast.Signal: implement .like(). 2018-12-12 14:43:19 +00:00
whitequark ad9b45adcd fhdl.ir: fix port threading code. 2018-12-12 13:00:50 +00:00
whitequark 0fac1f8d0f fhdl.dsl: comb/sync/sync.pix→d.comb/d.sync/d.pix. 2018-12-12 12:38:24 +00:00
whitequark 00f0b950f6 fhdl.ast.Signal: fix typo. 2018-12-12 12:37:30 +00:00
whitequark aab01d9e59 fhdl.ast.Signal: implement attrs field. 2018-12-12 11:30:40 +00:00
whitequark c05c189ece genlib.cdc.MultiReg: self.regs should be a private field. 2018-12-12 10:52:32 +00:00
whitequark 4eadc1629a fhdl.ast.Signal: implement width derivation from min/max. 2018-12-12 10:43:09 +00:00
whitequark bc60631d68 genlib.cdc.MultiReg: pull in from Migen. 2018-12-12 10:12:35 +00:00
whitequark 263d577323 fhdl.ast.Signal: implement reset_less signals. 2018-12-12 10:11:16 +00:00
whitequark 1d46ffb591 fhdl.ast.Signal: assign an internal name if tracer fails. 2018-12-12 10:08:56 +00:00
whitequark 6d5878a0ee fhdl.dsl: allow f.sync["dom"] as a synonym of f.sync.dom. 2018-12-12 10:00:00 +00:00
whitequark 851ed06769 ClockDomain.{rst→reset}, for consistency with ResetInserter. 
nmigen.compat.ClockDomain would alias this, for Migen compatibility.
 2018-12-12 09:49:02 +00:00
whitequark 4d3258013d Initial commit. 2018-12-12 03:18:44 +00:00