Commit Graph

227 Commits

Author SHA1 Message Date
steve d2ba78559a Process Verilog escape sequences much earlier. 2007-02-25 23:08:24 +00:00
steve 6d91be5b19 Use inttypes.h instead of stdint.h for portability. 2007-02-02 04:33:00 +00:00
steve d175eb17f1 Clarify the use of ivl_scope_def for not-functions. 2007-01-29 01:52:51 +00:00
steve 6f3ddce7c4 Dead code for memories in scopes. 2007-01-17 05:00:12 +00:00
steve f5a7ee0736 Remove dead code related to memories. 2007-01-17 04:39:18 +00:00
steve 91d84e7dc7 Major rework of array handling. Memories are replaced with the
more general concept of arrays. The NetMemory and NetEMemory
 classes are removed from the ivl core program, and the IVL_LPM_RAM
 lpm type is removed from the ivl_target API.
2007-01-16 05:44:14 +00:00
steve 0edb5a7547 Basic support for specify timing. 2006-09-23 04:57:19 +00:00
steve fc0695beb6 Handle 64bit delay constants. 2006-08-08 05:11:37 +00:00
steve 06d6ac4b33 Fix/implement signed right shift. 2006-07-30 02:51:35 +00:00
steve 80f30be9d0 Add support for system functions in continuous assignments. 2006-06-18 04:15:50 +00:00
steve 707af782b3 Fix part selects in l-values. 2006-04-16 00:15:43 +00:00
steve f001d0001a Add support for generate loops w/ wires and gates. 2006-04-10 00:37:42 +00:00
steve d434dd7296 Allow part selects of memory words in l-values. 2006-02-02 02:43:57 +00:00
steve 58f182a159 Node delays can be more general expressions in structural contexts. 2006-01-02 05:33:19 +00:00
steve 1721799050 Document binary expression use. 2005-12-22 15:44:29 +00:00
steve 244844c067 Document the IVL_ST_DELAY statements. 2005-11-20 15:58:25 +00:00
steve be73be8c98 Spelling patches from Larry. 2005-09-19 21:45:35 +00:00
steve c39976fbf1 Generate code to handle real valued muxes. 2005-09-01 04:11:37 +00:00
steve 4a8be3db9c Implement bi-directional part selects. 2005-08-06 17:58:16 +00:00
steve b9799cf6ec Remove NetVariable and ivl_variable_t structures. 2005-07-11 16:56:50 +00:00
steve 75ad90534b Generalize signals to carry types. 2005-07-07 16:22:49 +00:00
steve a0dce80eba Document ivl_logic_delay function. 2005-06-13 22:25:37 +00:00
steve 739a1839ed Do sign extension of structuran nets. 2005-05-24 01:44:27 +00:00
steve 7dd0d255a6 Add support for variable part select. 2005-05-08 23:40:14 +00:00
steve 06816e79fe Clarify internal delays for assignments. 2005-05-07 03:14:00 +00:00
steve 365cfedd55 Update DFF support to new data flow. 2005-04-24 23:44:01 +00:00
steve 6244dc1194 Make logic aware of strength. 2005-04-13 06:35:11 +00:00
steve e8a6835d36 Make clear that memory addresses are cannonical. 2005-04-08 04:52:31 +00:00
steve 65c7ec00e7 Rework NetRamDq and IVL_LPM_RAM nodes. 2005-04-06 05:29:08 +00:00
steve 236ff2b278 Clean up handle of UDPs. 2005-04-01 06:04:30 +00:00
steve 53da6e9a33 Add support for LPM_UFUNC user defined functions. 2005-03-18 02:56:03 +00:00
steve 53af2949b4 Generate code for new form of memory ports. 2005-03-09 04:53:40 +00:00
steve 0fb1fd36ee Handle memory words in l-value concatenations. 2005-03-05 05:47:42 +00:00
steve 85286cc086 Rearrange how memories are supported as vvp_vector4 arrays. 2005-03-03 04:33:10 +00:00
steve 257e1f9516 Support shifts and divide. 2005-02-19 02:43:38 +00:00
steve aaf35ab1a9 Handle bit selects in l-values to assignments. 2005-02-14 01:51:39 +00:00
steve 1d7235b4f1 Replace supply nets with wires connected to pullup/down supply devices. 2005-02-13 01:15:07 +00:00
steve d74177634c Restructure NetMux devices to pass vectors.
Generate NetMux devices from ternary expressions,
 Reduce NetMux devices to bufif when appropriate.
2005-02-12 06:25:40 +00:00
steve ee5bb5fcaf Add the NetRepeat node, and code generator support. 2005-02-08 00:12:36 +00:00
steve 97f83ffbe3 laborate reduction gates into LPM_RED_ nodes. 2005-02-03 04:56:20 +00:00
steve 609b6a7baa Netlist boolean expressions generate gate vectors. 2005-01-29 18:46:18 +00:00
steve 695718d691 Clarify width of nexus. 2005-01-29 16:47:20 +00:00
steve 99ace10774 Simplified NetMult and IVL_LPM_MULT. 2005-01-28 05:39:33 +00:00
steve dfb7c7ba6f Remove the NetEBitSel and combine all bit/part select
behavior into the NetESelect node and IVL_EX_SELECT
 ivl_target expression type.
2005-01-24 05:28:30 +00:00
steve cb4e0d4724 stub dump signed flags of magnitude compare. 2005-01-22 17:36:59 +00:00
steve e28636776a Change case compare from logic to an LPM node. 2005-01-22 01:06:55 +00:00
steve 9e94afe399 Use PartSelect/PV and VP to handle part selects through ports. 2005-01-09 20:16:00 +00:00
steve 8f2d679c8a Unify elaboration of l-values for all proceedural assignments,
including assing, cassign and force.

 Generate NetConcat devices for gate outputs that feed into a
 vector results. Use this to hande gate arrays. Also let gate
 arrays handle vectors of gates when the outputs allow for it.
2004-12-29 23:55:43 +00:00
steve 5eb25e44e1 Add ivl_event_scope, and better document ivl_event_X methods. 2004-12-18 18:56:18 +00:00
steve 4444079409 Fixup force statement elaboration. 2004-12-15 17:10:40 +00:00
steve 65e9b6be12 Rework of internals to carry vectors through nexus instead
of single bits. Make the ivl, tgt-vvp and vvp initial changes
 down this path.
2004-12-11 02:31:25 +00:00
steve e4ae832153 Clean up spurious trailing white space. 2004-10-04 01:10:51 +00:00
steve 94647be1f0 Some commentary on ivl_logic_pin. 2004-09-25 01:58:12 +00:00
steve e56b77a43f Add support for wait on list of named events. 2003-12-03 02:46:23 +00:00
steve bc0ead2842 Spelling fixes in comments. 2003-11-08 20:06:21 +00:00
steve 64d795c53a Preserve variable ranges all the way to the vpi. 2003-08-22 23:14:26 +00:00
steve e561819179 Add synthesis support for synchronous reset. 2003-08-15 02:23:52 +00:00
steve d653a7e88d Add support for triand and trior. 2003-07-30 01:13:28 +00:00
steve bad861dba3 Module attributes make it al the way to ivl_target. 2003-06-23 01:25:44 +00:00
steve 2a29c4fd62 Support real expressions in case statements. 2003-05-14 05:26:41 +00:00
steve f1cc9d865b Support event names as expressions elements. 2003-04-22 04:48:29 +00:00
steve 5d1d99a89f Handle signed magnitude compare all the
way through to the vvp code generator.
2003-04-11 05:18:08 +00:00
steve 1222153cdf Keep parameter constants for the ivl_target API. 2003-03-10 23:40:53 +00:00
steve 22d392a75c Obsolete the ivl_event_name function. 2003-03-06 01:24:37 +00:00
steve badad63ab4 All NetObj objects have lex_string base names. 2003-03-06 00:28:41 +00:00
steve a275133ff9 LPM objects store only their base names. 2003-02-26 01:29:24 +00:00
steve e941e7e805 Spelling fixes. 2003-01-30 16:23:07 +00:00
steve 46253ed873 Rework expression parsing and elaboration to
accommodate real/realtime values and expressions.
2003-01-26 21:15:58 +00:00
steve c2070777b2 The $time system task returns the integer time
scaled to the local units. Change the internal
 implementation of vpiSystemTime the $time functions
 to properly account for this. Also add $simtime
 to get the simulation time.
2002-12-21 00:55:57 +00:00
steve 9ce2806710 Fix synth2 handling of aset/aclr signals where
flip-flops are split by begin-end blocks.
2002-10-23 01:45:24 +00:00
steve 166621bcb3 Generate vvp code for asynch set/reset of NetFF. 2002-09-26 03:18:04 +00:00
steve dac99b9374 Add support for binary nand operator. 2002-09-12 15:49:43 +00:00
steve bd9e66d333 Missing declaration of ivl_memory_scope. 2002-08-24 05:03:40 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve 693e9e5ad0 Store only the base name of memories. 2002-08-05 04:18:45 +00:00
steve 89314d4772 Do not use hierarchical names of memories to
generate vvp labels. -tdll target does not
 used hierarchical name string to look up the
 memory objects in the design.
2002-08-04 18:28:14 +00:00
steve 301040a67a Avoid emitting to vvp local net symbols. 2002-07-05 21:26:17 +00:00
steve 5eca5d9948 Carry integerness throughout the compilation. 2002-06-21 04:59:35 +00:00
steve d6c946f390 Spelling patch (Larry Doolittle) 2002-06-11 03:34:33 +00:00
steve 422754f36f Support carrying the scope of named begin-end
blocks down to the code generator, and have
 the vvp code generator use that to support disable.
2002-05-27 00:08:45 +00:00
steve bfad382fd1 Carry Verilog 2001 attributes with processes,
all the way through to the ivl_target API.

 Divide signal reference counts between rval
 and lval references.
2002-05-26 01:39:02 +00:00
steve 700887d657 Verilog 2001 attriubtes on nets/wires. 2002-05-24 04:36:23 +00:00
steve e6c0629626 Add language support for Verilog-2001 attribute
syntax. Hook this support into existing $attribute
 handling, and add number and void value types.

 Add to the ivl_target API new functions for access
 of complex attributes attached to gates.
2002-05-23 03:08:50 +00:00
steve 828ca0ef9d Add API to support user defined function. 2002-03-17 19:30:20 +00:00
steve b7c2bd4f72 Add the NetUserFunc netlist node. 2002-03-09 02:10:22 +00:00
steve 364ffc9024 Add support for bit select of parameters.
This leads to a NetESelect node and the
 vvp code generator to support that.
2002-01-28 00:52:41 +00:00
steve dd79885f6d Add structural modulus support down to vvp. 2002-01-03 04:19:01 +00:00
steve da09d4c6e6 The IVL_SIT_WIRE type does not exist, it is a
synonym for IVL_SIT_TRI.
2001-12-15 02:13:17 +00:00
steve c8319bcc02 Add ivl_logic_delay function to ivl_target. 2001-12-06 03:11:00 +00:00
steve 08f0f5a1f7 DLL target support for force and release. 2001-11-14 03:28:49 +00:00
steve ab9a853d52 ivl_target support for cassign. 2001-11-01 04:25:31 +00:00
steve 75e78e86d3 ivl_target support for assign/deassign. 2001-10-31 05:24:52 +00:00
steve d350620315 Support multiple root modules (Philip Blundell) 2001-10-19 21:53:24 +00:00
steve 177fa4062b Support IVL_LPM_DIVIDE for structural divide. 2001-10-16 02:19:26 +00:00
steve cbd501b865 Fix some Cygwin DLL handling. (Venkat Iyer) 2001-09-30 16:45:10 +00:00
steve e99059e001 Support attributes to logic gates. 2001-09-16 22:19:42 +00:00
steve 0253f92e7e pin down some enumerated constants. 2001-09-09 22:21:57 +00:00
steve d762a320dc Make constants available through the design root 2001-09-01 01:57:31 +00:00
steve e79a371f76 Support DFF CE inputs. 2001-08-31 22:58:39 +00:00
steve 2002c03cef Add some ivl_target convenience functions. 2001-08-28 04:07:17 +00:00