Commit Graph

6240 Commits

Author SHA1 Message Date
Nick Gasson 48c1a7982c Make seen_nexus private 2008-07-29 14:24:04 +01:00
Nick Gasson a842b327c7 Generate constant drivers as concurrent assignments 2008-07-29 14:02:05 +01:00
Nick Gasson f8034d69ef Fix constants in nexuses 2008-07-29 13:30:54 +01:00
Nick Gasson d94dac28a8 Remove redundant lpm_output 2008-07-29 13:08:13 +01:00
Nick Gasson 680c6f0503 Make sure LPMs have valid inputs/outputs 2008-07-29 13:06:21 +01:00
Nick Gasson 39717989a8 Call set_active_entity in the right places 2008-07-29 13:04:29 +01:00
Nick Gasson c26b7ce675 Port maps 2008-07-29 13:02:55 +01:00
Nick Gasson c6f6ea7358 Instantiation working again 2008-07-29 12:21:19 +01:00
Nick Gasson c0c838f1bc Logic devices now working again 2008-07-29 12:11:44 +01:00
Nick Gasson 1a45e9164f Find signal a logic device is connected to 2008-07-29 12:04:40 +01:00
Nick Gasson 8a5f129e56 Draw nexus in multiple passes 2008-07-29 12:00:26 +01:00
Nick Gasson 65c2ceb89d Build entity hierarchy in separate stages 2008-07-29 11:01:02 +01:00
Nick Gasson 7a2e9c02cd Simplify support function emitting code 2008-07-28 22:48:21 +01:00
Nick Gasson f88415b1d7 Conversion of std_logic to integer 2008-07-28 22:46:39 +01:00
Nick Gasson 1250010696 Merge branch 'vhdl' of git@github.com:nickg/iverilog into vhdl
Conflicts:

	tgt-vhdl/support.cc
2008-07-28 21:47:37 +01:00
Nick Gasson 506a0ba7d6 Support repeat in concatenation 2008-07-28 21:46:19 +01:00
Nick Gasson 1d4914c590 Undo last commit 2008-07-28 13:04:30 +01:00
Nick Gasson 3e28a10676 Compress support function names a bit 2008-07-28 13:02:04 +01:00
Nick Gasson 78028a3310 Fully support ternary expressions 2008-07-28 12:59:10 +01:00
Stephen Williams 25a27f9dd9 Parse contribution statements as far as pform.
Contribution statements have an l-value and r-value. Parse those
expressions into pform so that elaboration has something to work with.

In this process, this patch also changes the PECallFunction class to
use the vector template instead of the svector template. The latter
doesn't add anything over the STL vector template, so this is a start
of working the svector out.
2008-07-27 17:22:19 -04:00
Stephen Williams 03e306c805 Infrastructure for parsing analog process statements.
Organize the parsing infrastructure for parsing analog processes,
including holding them in scopes, and collecting analog statements.
2008-07-27 15:02:09 -04:00
Nick Gasson b9cecbef64 Make sure LPM comparison result is std_logic not Boolean 2008-07-27 19:05:49 +01:00
Nick Gasson 8b32096e2a Convert std_logic to Boolean in loop tests 2008-07-27 18:39:16 +01:00
Nick Gasson ba462eb8b7 Merge branch 'vhdl' of git@github.com:nickg/iverilog into vhdl 2008-07-25 20:00:26 +01:00
Nick Gasson 5a09819729 Catch case of select expression on non-variable 2008-07-24 16:00:12 +01:00
Nick Gasson d3296d4895 Refactor while/for loop code to use common base 2008-07-24 15:22:25 +01:00
Nick Gasson 39c9c54760 Add repeat statement 2008-07-24 14:52:06 +01:00
Nick Gasson 8bee5b1108 Add `forever' statement type 2008-07-24 14:30:10 +01:00
Nick Gasson e4c2400eb2 Refactor the expression->time code into a single function 2008-07-23 16:18:49 +01:00
Nick Gasson 1409207def Correctly indent case statements 2008-07-23 14:31:41 +01:00
Nick Gasson 30fdadc525 Support delays in logic devices 2008-07-23 13:40:42 +01:00
Nick Gasson a5db0297b0 Unary minus 2008-07-22 15:44:29 +01:00
Nick Gasson e25f946ac0 Merge branch 'vhdl' of file:///media/disk/data/iverilog/ into vhdl 2008-07-21 15:20:42 +01:00
Nick Gasson 2f4f075005 Typo 2008-07-21 15:20:40 +01:00
Nick Gasson 3ca85491ee Unary AND and XOR 2008-07-20 16:41:57 +01:00
Nick Gasson d8351ec1b2 Fix reduction OR in procedural code 2008-07-20 15:13:20 +01:00
Nick Gasson 77508b9afa Reduction OR operator 2008-07-20 15:10:00 +01:00
Nick Gasson 38de6ebf3a Compress support function definitions a bit 2008-07-19 21:04:52 +01:00
Nick Gasson af3ee49f57 Refactor support function code a bit 2008-07-19 20:49:55 +01:00
Nick Gasson 0cb6ea34d7 Move type conversion code into a separate file 2008-07-19 15:23:47 +01:00
Nick Gasson b6df73d3b9 Support functions for converting (un)signed -> boolean 2008-07-19 15:15:16 +01:00
Nick Gasson 2d79e1a2e0 Store the currently active entity 2008-07-19 14:45:00 +01:00
Nick Gasson 7b311b6adb Translate internal delays in assignments 2008-07-18 14:47:35 +01:00
Nick Gasson df4a380e42 Fix implementation of IVL_LPM_UFUNC
Function name was not correct.
2008-07-18 14:31:12 +01:00
Nick Gasson 6ff80e80a4 Catch case where (un)signed is converted to boolean 2008-07-18 12:30:24 +01:00
Nick Gasson 8b6b111541 Add IVL_LPM_CMP_EQ 2008-07-18 11:58:26 +01:00
Nick Gasson fd8f01e317 Add IVL_LPM_CMP_GE 2008-07-18 11:56:00 +01:00
Nick Gasson 00317dd47f Dummy implementation of $time 2008-07-18 11:50:05 +01:00
Nick Gasson e9637f6d11 Generate synthesisable code for sequential processes
Whilst adding `wait until ...' at the end of every
process is a valid translation of the input, it is not
actually synthesisable in at least one commercial
synthesiser (XST). According to the XST manual the
correct template is to use `wait until ...' at the
start of sequential processes and `wait on ...'
(equivalent to `wait until ...' with 'Event on all
the signals) at the end of combinatorial processes.
This patch implements that.
2008-07-17 17:36:42 +01:00
Nick Gasson 1f9ed2c5ec VHDL AST element for `wait on' statement 2008-07-17 17:23:21 +01:00