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163 Commits

Author SHA1 Message Date
Nick Gasson 75631bd8f1 Move is_inital code out of vhdl_process into vhdl_scope 
Part of tidy up before implementing functions
 2008-06-24 19:06:06 +01:00
Nick Gasson 63b1887ff2 Refactor code to use the new vhdl_scope class 2008-06-24 18:52:25 +01:00
Nick Gasson 4188fbecee Add XOR operator and catch default case branch 2008-06-24 10:55:45 +01:00
Nick Gasson f261bf7e97 Fix bug where variables could be declared twice 2008-06-23 15:13:10 +01:00
Nick Gasson f81129aa68 Fix some bugs with blocking assignment 2008-06-23 13:36:28 +01:00
Nick Gasson 469036990a Output blocking assignments in the right place 2008-06-23 12:30:48 +01:00
Nick Gasson d5cdb91d55 Handle complex expressions in case statement 2008-06-23 11:36:12 +01:00
Nick Gasson 75f7c9ae0c Only move constant assignments into initialisation 2008-06-21 16:40:18 +01:00
Nick Gasson 5cfe7ea0aa Tidy up output 2008-06-21 16:28:07 +01:00
Nick Gasson ec23b70bb7 While loops 2008-06-21 15:13:44 +01:00
Nick Gasson 0caf4fd9d0 Add case statement 2008-06-21 15:03:36 +01:00
Nick Gasson 204862ac3c Implement $write 2008-06-20 19:00:07 +01:00
Nick Gasson 404c22ac86 Improved implementation of $display 2008-06-20 11:51:13 +01:00
Nick Gasson d7bb5658f2 Translate IVL_ST_DELAYX statements 2008-06-19 12:16:19 +01:00
Nick Gasson e0f41198d6 Blocking assignment working correctly 2008-06-18 13:49:03 +01:00
Nick Gasson fb31a88c51 Blocking assignment nearly working 2008-06-18 13:30:19 +01:00
Nick Gasson 254ccb9ccb First passing at blocking assignment 2008-06-18 13:06:27 +01:00
Nick Gasson d2bebee9d9 Refactor before adding blocking assignment 2008-06-18 12:51:11 +01:00
Nick Gasson af8c08e6a7 Allow optional VHPI $finish implementation 2008-06-17 20:16:16 +01:00
Nick Gasson 01249000c3 Temporarily treat blocking assignment as non-blocking 2008-06-17 14:07:36 +01:00
Nick Gasson 1debbc3100 Simplify edge_detector() a bit 2008-06-16 20:06:06 +01:00
Nick Gasson 92c823680a Fix crash when `if' statement had no `else' 2008-06-16 12:13:01 +01:00
Nick Gasson 0ea64ad8ab Correct misleading comment 2008-06-13 14:47:06 +01:00
Nick Gasson be3c4cf268 Generate signal initial values from `initial' processes 2008-06-13 14:10:28 +01:00
Nick Gasson 0a8fd50c4a Find assignments that could be initializers 2008-06-13 13:59:48 +01:00
Nick Gasson 70db096b6d Clean up the edge detector code a bit 2008-06-13 12:52:20 +01:00
Nick Gasson 005df31a0d Use renamed signal in expressions, if there is one 2008-06-13 12:39:18 +01:00
Nick Gasson 8fe2211e2b Generate `after' modifier instead of `wait' statements 2008-06-12 11:24:43 +01:00
Nick Gasson 46991aa65c Generate process bodies in the right place 2008-06-12 10:47:52 +01:00
Nick Gasson 7eb41304e6 Generate rising/falling edge detectors 2008-06-12 10:36:38 +01:00
Nick Gasson 19e60b698f Translate if statements 2008-06-11 14:20:05 +01:00
Nick Gasson a7cfdc3a87 Add VHDL if statement to AST types 2008-06-11 14:11:37 +01:00
Nick Gasson b010b8e3ca Use `assert false' as initial translation of $finish 2008-06-11 13:37:21 +01:00
Nick Gasson 7560b29fb9 Find signals to map together 2008-06-10 12:21:48 +01:00
Nick Gasson 191187ed1b Cosmetic change to avoid useless `null' statement after delay 2008-06-09 16:40:32 +01:00
Nick Gasson 2f5dcda3b6 Delay statements now translated correctly 2008-06-09 12:49:38 +01:00
Nick Gasson d762253f74 Wait statements 2008-06-09 12:40:59 +01:00
Nick Gasson 110a1b2ac7 Replace type classes with enumeration 2008-06-08 12:48:56 +01:00
Nick Gasson 79558910d1 Catch case where NULL return wasn't detected 2008-06-07 16:44:01 +01:00
Nick Gasson fbf85398da Support converting bit strings to std_logic 2008-06-07 16:19:10 +01:00
Nick Gasson 1e4b96aa0a Simplify code a bit as rval type is never needed 2008-06-07 14:57:20 +01:00
Nick Gasson c064ae6bc3 Generate VHDL for non-blocking assignments 2008-06-07 14:54:00 +01:00
Nick Gasson 39228f3495 VHDL AST element for non-blocking assignment 2008-06-07 14:31:33 +01:00
Nick Gasson 12e2237131 Add Type'Image cast to $display parameters 2008-06-07 14:21:50 +01:00
Nick Gasson cdb180e1d4 Associate a type with each VHDL expression node 2008-06-07 13:23:21 +01:00
Nick Gasson 8c3461f0ff Generate sensitivity lists properly and add signal declarations 2008-06-07 11:48:38 +01:00
Nick Gasson 305f448d05 Generate code for signal references 2008-06-07 11:24:09 +01:00
Nick Gasson 5f90a3e48c Translate sub-statement of @{..} 2008-06-06 18:22:03 +01:00
Nick Gasson 96cf190720 Generate signals and sensitivity list for @(..) statement 2008-06-06 17:56:52 +01:00
Nick Gasson 373832ba22 Specify correct sensitivity list 2008-06-06 17:36:15 +01:00
Nick Gasson 4f472e451e Stubs for statement types in mux2.v test 2008-06-06 16:55:45 +01:00
Nick Gasson d36bbec5b5 Generate VHDL for no-op statements 2008-06-05 13:16:35 +01:00
Nick Gasson e258058cf1 Fully qualify std.textio.Output to avoid name collisions 2008-06-04 21:58:51 +01:00
Nick Gasson c3ac1aac8c Remove debugging messages from output 2008-06-04 21:07:50 +01:00
Nick Gasson f49dd97d24 Add support for blocks and make hello1.v test pass 2008-06-04 20:57:15 +01:00
Nick Gasson 7bd1565cfb $display now (mostly) working 2008-06-04 20:42:44 +01:00
Nick Gasson 6e448da90d Emit Write() calls for parameters of $display 2008-06-04 15:19:44 +01:00
Nick Gasson 4bf2e1669d Store packages required with entity rather than globally 
Add parent link to architecture and process so code generators can push things higher up
$display now prints blank lines
 2008-06-04 13:52:56 +01:00
Nick Gasson dd30c1b39d Support procedure call generation for $display 2008-06-04 13:27:42 +01:00
Nick Gasson 94006cb44c Working on code generation for $display task 2008-06-03 19:46:10 +01:00
Nick Gasson fe80da362c Collect required packages as compilation progresses 2008-06-03 19:14:47 +01:00
Nick Gasson 82aca1b02e Stub code for handling $display 2008-06-03 18:44:17 +01:00
Nick Gasson 4211e651d0 Stub file for processing statements 2008-06-03 18:26:36 +01:00