Commit Graph

790 Commits

Author SHA1 Message Date
Stephen Williams 5d750b7779 Optomize runtime using immediate compare
Implement compare-immediate instructions and generate code to use
these new instructions to improve runtime performance.

Signed-off-by: Stephen Williams <steve@icarus.com>
2007-10-03 20:58:40 -07:00
Cary R 3258b7726b Pass local scope precision from compiler to vvp/etc.
This patch adds ivl_scope_time_precision() to the compiler which can
be used to extract the local scope precision. tgt-stub and tgt-vvp
have been modified to use this new function and output a value that
is appropriate. The vvp runtime has been altered to use this new
data which is accessed with the vpip_time_precision_from_handle()
function. vpiTimePrecision uses this function to return the correct
precision.
2007-09-28 15:08:02 -07:00
Stephen Williams 14c0cfd3b1 bufif and nmos/pmos are strength aware
The outputs to bufif and nmos/pmos devices are always strength-aware,
so should have their outputs connected to a net8 device.

Signed-off-by: Stephen Williams <steve@icarus.com>
2007-09-22 21:53:55 -07:00
Cary R 7c852aa075 Add cmos/rcmos primitives.
This patch adds the cmos and rcmos primitives.
2007-09-06 18:46:22 -07:00
Stephen Williams 88dea0c318 Remove restriction on size of constants
Constant strings are now formed in dynamically allocated memory
instead of a fixed array.

Signed-off-by: Stephen Williams <steve@icarus.com>
2007-06-30 20:27:08 -07:00
Stephen Williams d7c3a32b06 Fix code generation for real expressions
Real value are vector width of 1, fix real literal to reflect this.
fix leaking real registers in code generation for function arguments.
Load of signal should handle conversion from real to vector. Function
arguments, type vector passed a real value, are an example where this
comes up.

Signed-off-by: Stephen Williams <steve@icarus.com>
2007-06-29 21:10:37 -07:00
Stephen Williams ed698deeaa Add support for collapsed/aliased arrays.
Arrays of nets that have all their words collapsed together can become
a collapsed array as a whole. Add support for this case in the vvp code
generator and runtime.
2007-06-24 18:17:37 -07:00
steve ae82eccdc4 handle constant inf values. 2007-06-12 02:36:58 +00:00
steve 0a38499941 Properly handle signed conversion to real 2007-06-07 03:20:15 +00:00
steve 67b1eee7ce Better configuration messages (Alan Feldstein) 2007-05-16 23:59:12 +00:00
steve 9931e4c013 Finish up part select of array words. 2007-04-14 04:43:01 +00:00
steve ff7625cd9c nexus vectors of VT_BOOL objects. (ravi@bluespec) 2007-04-12 04:40:37 +00:00
steve fbc731d19e Allow nexus aliases to array words. 2007-04-10 03:40:04 +00:00
steve 5047a3add3 variable arrays generated without writing a record for each word. 2007-04-10 01:26:15 +00:00
steve d883979fd8 Seperate arrayness from word count 2007-04-02 01:12:34 +00:00
steve ea74940be4 Fix that save expression lookaside always clears cached variable values. 2007-04-01 05:26:17 +00:00
steve 611d2c81b3 Spelling fixes from Larry 2007-03-22 16:08:14 +00:00
steve 96443f1338 Clear lookaside even if source bit is a constant. 2007-03-20 04:26:56 +00:00
steve fc9a90c9e0 Add support for edge sensitive spec paths. 2007-03-02 06:13:22 +00:00
steve 243cf94165 Add support for conditional specify delay paths. 2007-03-01 06:19:38 +00:00
steve 80a2b05733 Do not assign to words constant-indexed out of range. 2007-02-27 05:13:34 +00:00
steve 6804732b9e Spelling fixes (larry doolittle) 2007-02-26 19:49:48 +00:00
steve d6969b719a Prevent lost of width while calculation address. 2007-02-26 01:51:40 +00:00
steve 1f54f128c1 Handle unary minus of real valued expressions. 2007-02-20 05:58:36 +00:00
steve 45307f6144 Handle type of ternary expressions properly. 2007-02-14 05:59:46 +00:00
steve 92c36f152d Treat BOOL and LOGIC the same according to VPI functions. 2007-02-14 05:59:24 +00:00
steve 521f66f040 Get padding right when loading array word into big vector. 2007-02-12 04:37:58 +00:00
steve 3fd80b09f0 Administrative/Makefile fixes, mostly for windows. (Cary R.) 2007-02-06 05:07:31 +00:00
steve 2b3acfb344 Expression lookaside cannot hold complex expressions 2007-02-06 04:43:53 +00:00
steve 7d42c50253 Lookaside is invalid when working a new scope. 2007-02-02 04:48:49 +00:00
steve 05efaa6427 Treat VPI argument array with constant index specially. 2007-01-30 05:28:23 +00:00
steve f07257067a Handle real constants in vector expressions. 2007-01-19 05:24:53 +00:00
steve c0954349e4 Fix bad lookaside references in vvp thread code generator. 2007-01-19 02:30:19 +00:00
steve e89b9fc25e Do not match array words in expression lookaside. 2007-01-18 00:59:48 +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 d6f98599f8 Do not intertangle modpaths due to references to input nets. 2006-11-23 22:42:48 +00:00
steve 64b4e2fa01 Get the .event input from the signal instead of the signal input. 2006-11-22 06:09:08 +00:00
steve 841378426f Updates for Cygwin portability (pr1585922) 2006-10-30 22:45:36 +00:00
steve 0e102a94b2 Fix rendering of signed numbers in real expressions. 2006-10-10 23:54:28 +00:00
steve ec23bb0367 Remove dead code. 2006-10-05 01:37:34 +00:00
steve 26e2e85ffa Handle non-constant delays on indexed non-blocking assignments. 2006-10-05 01:23:53 +00:00
steve 549f226c6e Modpath is input to net, draw .modpath to account. 2006-10-01 23:51:15 +00:00
steve 0edb5a7547 Basic support for specify timing. 2006-09-23 04:57:19 +00:00
steve 50800fd3a1 Add support for real valued modulus. 2006-08-09 05:19:08 +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 46d86ad276 Get tail counts right in nested concatenations. 2006-04-22 04:27:36 +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 f4a44df2cc Support more parameter syntax. 2006-03-18 22:53:38 +00:00
steve 8ff70410ab Handle multiple part/bi devices connected together. 2006-03-15 05:52:20 +00:00
steve 6f46d12e07 Add support for logic parameters. 2006-03-08 05:29:42 +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 e9bf00dff6 Pad part selects 2005-12-22 15:42:22 +00:00
steve 5cf64dfa70 Include stdint.h if it is present. 2005-12-07 03:43:30 +00:00
steve 4f7e7a2296 Some systems donot have stding.h? 2005-12-05 21:20:55 +00:00
steve bab70ccbed Handle indexed l-value to force. 2005-11-26 17:23:17 +00:00
steve 0e044d6684 More precise about r-value width of constants. 2005-11-26 00:35:42 +00:00
steve 35951510c5 Put vec8 and vec4 nets into seperate net classes. 2005-11-25 17:55:26 +00:00
steve 9c8c541f5d MUX nodes get inputs from nets, not from net inputs,
Detect and draw alias nodes to reduce net size and
 handle force confusion.
2005-10-12 17:26:17 +00:00
steve 3cdf655c79 force l-values do not support bit/part select. 2005-10-12 17:26:01 +00:00
steve c75f0a930e Remove the $ from signal labels. They do not help. 2005-10-11 18:54:10 +00:00
steve bb3f3c1f46 Remove obsolete vvp_memory_label function. 2005-10-11 18:30:50 +00:00
steve fb22bcc96b Remove dead dram_input_from_net and lpm_inputs_a_b 2005-10-10 04:16:13 +00:00
steve bf8b085159 Clean up compiler warnings. 2005-09-20 18:34:01 +00:00
steve be73be8c98 Spelling patches from Larry. 2005-09-19 21:45:35 +00:00
steve d22d88923d Fix warnings about uninitialized variables. 2005-09-19 20:18:20 +00:00
steve 2729d6cd2e Include vvp_config.h instead of config.h 2005-09-19 20:17:59 +00:00
steve c4d8ab8509 Improve loading of part selects when easy. 2005-09-17 04:01:32 +00:00
steve 672aa61ae7 More robust use of precalculated expressions, and
Separate lookaside for written variables that can
 also be reused.
2005-09-17 01:01:00 +00:00
steve 19a1ae8d4f Preserve precalculated expressions when possible. 2005-09-15 02:50:13 +00:00
steve 14d79a655e Better reuse of IVL_EX_SELECT expressions. 2005-09-15 02:49:47 +00:00
steve 9fd16575d9 Support bool expressions and compares handle them optimally. 2005-09-14 02:53:13 +00:00
steve c39976fbf1 Generate code to handle real valued muxes. 2005-09-01 04:11:37 +00:00
steve dac11c2468 Handle synthesis of fully packed case statements. 2005-08-27 04:32:08 +00:00
steve 4a8be3db9c Implement bi-directional part selects. 2005-08-06 17:58:16 +00:00
steve 5bfdd52391 Handle functions with real values. 2005-07-13 04:52:31 +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 66a579dd67 Handle signed display of unsigned signals. 2005-06-18 15:55:21 +00:00
steve 4cc421b3b7 Make functors know their own width. 2005-06-17 03:46:52 +00:00
steve 290c604c62 Fix bit offsets when processing lval concatenation. 2005-06-15 01:33:33 +00:00
steve cd14ee77ae Add the assign_v0_d instruction. 2005-06-14 01:44:09 +00:00
steve 2f7ec71a78 Support %force/link 2005-06-02 16:03:47 +00:00
steve 015d280c6a Handle assignments to part-select l-values. 2005-05-24 02:31:18 +00:00
steve 739a1839ed Do sign extension of structuran nets. 2005-05-24 01:44:27 +00:00
steve 82be4ab189 Detect bit selects that need special handling. 2005-05-17 20:55:42 +00:00
steve 5a2dd3393f Skip assign if index is invalid. 2005-05-09 00:38:12 +00:00
steve 7dd0d255a6 Add support for variable part select. 2005-05-08 23:40:14 +00:00
steve 48aa0f0075 Better handle assignment to bit/part select. 2005-05-07 03:16:31 +00:00
steve df271c9fa3 Link signals that are source of procedural continuous assign. 2005-05-01 22:04:12 +00:00
steve 365cfedd55 Update DFF support to new data flow. 2005-04-24 23:44:01 +00:00
steve 65c7ec00e7 Rework NetRamDq and IVL_LPM_RAM nodes. 2005-04-06 05:29:08 +00:00
steve d62661257a Generate the right coes for unconnected UDP port. 2005-04-04 05:29:53 +00:00
steve d8a456bd67 The indexed set can write a vector, not just a bit. 2005-03-22 05:18:34 +00:00
steve ca488dff4e Handle LPM shifts. 2005-03-19 06:23:49 +00:00
steve 23925b636e vvp.conf files are generated. 2005-03-18 02:57:23 +00:00
steve 53da6e9a33 Add support for LPM_UFUNC user defined functions. 2005-03-18 02:56:03 +00:00
steve f556452403 Handle function/task port vectors. 2005-03-12 23:45:33 +00:00
steve 1c5b4881d7 Handle case inequality in netlists. 2005-03-09 05:52:03 +00:00
steve 53af2949b4 Generate code for new form of memory ports. 2005-03-09 04:53:40 +00:00
steve 8e135a1020 Non blocking assign to memory words. 2005-03-06 17:07:48 +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 2fcaac4060 Support constant part select writes to l-values, and large part select reads from signals. 2005-02-15 07:12:55 +00:00
steve 4051f7d986 Handle bitmux lvalues for constant r-values. 2005-02-14 05:00:11 +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 d4eb4d38bc Implement a-b muxes as vector devices 2005-02-12 22:54:29 +00:00
steve eca4f4fa97 Draw C4 and C8 constants to account for strength. 2005-02-12 06:25:15 +00:00
steve 1979fca239 Get the C4 width right for undriven nexa. 2005-02-10 04:55:45 +00:00
steve ee5bb5fcaf Add the NetRepeat node, and code generator support. 2005-02-08 00:12:36 +00:00
steve e74127e1fc Support .concat with arbitrary input counts. 2005-02-04 05:13:57 +00:00
steve 97f83ffbe3 laborate reduction gates into LPM_RED_ nodes. 2005-02-03 04:56:20 +00:00
steve 7250337941 Integrate fixes from 0.8 branch. 2005-01-28 19:39:03 +00:00
steve 6be34bba4d Special handling of constant shift 0. 2005-01-28 05:37:48 +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 edeb9d8eca Part selects are done in the compiler, not here. 2005-01-24 05:08:02 +00:00
steve a4710f375e LPM_CMP_NE/EQ are vectored devices. 2005-01-22 16:22:13 +00:00
steve e28636776a Change case compare from logic to an LPM node. 2005-01-22 01:06:55 +00:00
steve bf6a5d0f50 Implement LPM_COMPARE nodes as two-input vector functors. 2005-01-16 04:20:32 +00:00
steve fcaaec0464 More robust input code generation for LPM_ADD. 2005-01-12 05:31:50 +00:00
steve 8c18c9152d More complete drawing of concat inputs. 2005-01-12 03:16:35 +00:00
steve 399dfe5c44 Handle concatenations with up to 16 inputs. 2005-01-10 01:42:59 +00:00
steve 9e94afe399 Use PartSelect/PV and VP to handle part selects through ports. 2005-01-09 20:16:00 +00:00
steve 83423c978b Generate code for the .concat functors, from NetConcat objects.
Generate C<> constants of correct widths for functor arguments.
2004-12-29 23:52:09 +00:00
steve e11ac0b1d8 Use %set/v to trigger events. 2004-12-18 18:53:26 +00:00
steve 59bac26f4f Implement release functionality. 2004-12-17 04:46:40 +00:00
steve ffedf32476 cassign and deassign handle concatenated l-values. 2004-12-11 05:43:30 +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 e827f8f8c1 Cleanup and factoring of autoconf. 2004-09-27 22:34:10 +00:00
steve 965d928430 More carefull about eliding bufzs that carry strength. 2004-09-25 21:04:25 +00:00
steve 5e627c9adc Compile cleanup of C code. 2004-09-10 23:13:05 +00:00
steve a8ee786036 Relaxed width constraint on pad_expression output. 2004-09-10 00:14:31 +00:00
steve 491df9c327 Watch out for real compared to constant. Handle as real. 2004-06-30 03:07:32 +00:00
steve 3dbc07f34d Implement signed divide and signed right shift in nets. 2004-06-30 02:16:26 +00:00
steve 9ba1177a4d Generate signed modulus if appropriate. 2004-06-19 16:17:37 +00:00
steve b043445c80 Generate .cmp/eq nodes instead of sea of gates. 2004-06-16 23:33:42 +00:00
steve 896f1b0de1 Generate code for nb assign to reals. 2004-05-19 03:25:42 +00:00
steve 081a6a4088 Cleanup configure detection of win32. 2004-02-15 03:17:36 +00:00
steve 8188c4c690 Makefile cleanup. 2004-02-10 19:25:00 +00:00
steve a436bfc711 Include from current directory. 2004-01-28 23:54:10 +00:00
steve c2ab27541f Make sure I get ivl_target.h from this source. 2004-01-26 23:31:57 +00:00
steve d98720af4d Isolate configure from containing config.h 2004-01-20 21:00:47 +00:00
steve 8aca824c0f Further unify the configure.in scripts. 2004-01-15 20:52:32 +00:00
steve 59ac435c71 Fix various unsigned compare warnings. 2003-12-19 01:27:10 +00:00
steve ae3198b505 Install target gets vvp.conf that is built, not from srcdir. 2003-12-12 19:58:40 +00:00
steve df968687e4 Generate VVP_EXECUTABLE flag in conf files. 2003-12-07 19:28:43 +00:00
steve e56b77a43f Add support for wait on list of named events. 2003-12-03 02:46:23 +00:00
steve 12033d7bd4 Move the DLL= flag to target config files. 2003-11-13 05:55:33 +00:00
steve 435f06bd21 ivl -F and -t flags are onpassed throught the -C file. 2003-11-13 03:10:37 +00:00
steve c5f7e7837b Start the vvp target config files. 2003-11-01 04:22:50 +00:00
steve 5496a38499 vvp_signal_label does not return a unique string. 2003-10-25 02:07:57 +00:00
steve a461a76bd5 Emit .event inputs before the .event statement. 2003-10-09 23:45:03 +00:00
steve 3190eda414 Slightly more efficient unary minus. 2003-10-01 17:44:20 +00:00
steve 2970b3c39b Clear expression lookaside after true cause of ternary. 2003-09-24 20:46:20 +00:00
steve cee34f8a8a Support time0 resolution of combinational threads. 2003-09-04 20:28:05 +00:00
steve 64d795c53a Preserve variable ranges all the way to the vpi. 2003-08-22 23:14:26 +00:00
steve 6b7879c0b0 Ignore autom4te.cache files. 2003-08-10 00:41:26 +00:00
steve 5e326cd90e Subtract from constant values. 2003-08-03 03:53:38 +00:00
steve d653a7e88d Add support for triand and trior. 2003-07-30 01:13:28 +00:00
steve d4b7c835de All the threads of a named fork go into sub-scope. 2003-07-29 05:12:10 +00:00
steve bfe31e22bf Start handling pad of expressions in code generators. 2003-07-26 03:34:42 +00:00
steve 01b858ef13 Wider thread vector limit. 2003-07-03 17:44:10 +00:00
steve 71a404a546 Add arithmetic shift operators. 2003-06-18 03:55:18 +00:00
steve 96ca885aca Remove short int restrictions from vvp opcodes. 2003-06-17 19:17:42 +00:00
steve 4da0cc4c8c Fix fprintf warning. 2003-06-16 22:14:15 +00:00
steve 1b0408ac8f More efficient code for ternary expressions. 2003-06-15 22:49:32 +00:00
steve 2f6826247a Sign extend signed vectors. 2003-06-14 22:18:54 +00:00
steve b43c543455 Handle assign of real to vector. 2003-06-13 19:10:20 +00:00
steve 0c7a5874d4 Proper pad of signed constants. 2003-06-11 02:23:45 +00:00
steve a4d69e08da Better width testing for thread vector allocation. 2003-06-05 04:18:50 +00:00
steve 8cfef65bd8 Implement acc_fetch_defname and its infrastructure in vvp. 2003-05-29 02:21:45 +00:00
steve 4b20ffc829 Use set/x0/x if the target vector is too wide for set/x0. 2003-05-26 04:45:37 +00:00
steve 6e5b7e4a41 Add % in real expressions. 2003-05-25 02:50:08 +00:00
steve cd7a313f56 Account for nested fork scopes in disable. 2003-05-17 04:38:19 +00:00
steve 8126bdd384 Use fopen64 to open output file. 2003-05-16 03:22:52 +00:00
steve 2a29c4fd62 Support real expressions in case statements. 2003-05-14 05:26:41 +00:00
steve 3bd08e6212 Allow primitives to hvae unconnected input ports. 2003-05-13 01:56:15 +00:00
steve 2a93dc00f6 Proper width handling of || expressions. 2003-05-10 02:38:49 +00:00
steve d5642e6bdf Preserve user specifiec CFLAGS/CPPFLAGS. 2003-04-23 05:27:44 +00:00
steve 3aa3d03397 Fix word register leak. 2003-04-23 02:22:47 +00:00
steve f1cc9d865b Support event names as expressions elements. 2003-04-22 04:48:29 +00:00
steve 3b17456254 Properly pass $signed(signal) to tasks. 2003-04-12 23:25:20 +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 4b543de7f9 Add support for division of real operands. 2003-03-28 02:33:56 +00:00
steve f354c43941 Use hash code for scope labels. 2003-03-25 02:15:48 +00:00
steve 06d5c8135c Allow real-valued vpi functions to have arguments. 2003-03-15 04:45:18 +00:00
steve 8188e8f3bf Use %p name for all LPM functors. 2003-03-13 06:07:11 +00:00
steve 1222153cdf Keep parameter constants for the ivl_target API. 2003-03-10 23:40:53 +00:00
steve 6474c5c9f4 Excess precision breaks some targets. 2003-03-08 01:04:01 +00:00
steve 5adf99059d Handle general $function arguments as expresions. 2003-03-07 02:43:32 +00:00
steve 0bf901e9bb Use number for event labels. 2003-03-06 01:17:46 +00:00
steve 17ec5d7891 Use numbers for functor labels. 2003-03-06 00:27:09 +00:00
steve 76a77fdd36 Printed nexus names need not use ivl_nexus_name. 2003-03-03 23:05:49 +00:00
steve 679c9c5bfe Only give scope basename to .scope directives. 2003-03-03 01:48:41 +00:00
steve 970c4950f4 Merge vpi_call and vpi_func draw functions. 2003-02-28 20:21:13 +00:00
steve feee40603c Makefile cleanups to better support concurrent make. 2003-02-27 22:13:22 +00:00
steve 514bb4a6a9 Handle assign of real values to vectors. 2003-02-27 20:38:12 +00:00
steve e6eded243e Eliminate use of ivl_lpm_name function. 2003-02-25 03:40:45 +00:00
steve 7638ec05e7 Handle real value subtract and comparisons. 2003-02-07 02:46:16 +00:00
steve ce489d8d84 Allow $display of $simtime. 2003-02-03 01:09:20 +00:00
steve de4c73abcb Deliver residual bits of real value. 2003-01-28 04:15:50 +00:00
steve 04ada23119 Support in various contexts the $realtime
system task.
2003-01-27 00:14:37 +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 42b34c2ce6 Evaluate shift index after shift operand because
the chift operand may use the index register itself.
2002-12-20 01:11:14 +00:00
steve 6fbfdd8f3f Keep bit select subexpression width if it is constant. 2002-12-19 23:11:29 +00:00
steve 8e30bc9f9e Careful of left operands to shift that are constant. 2002-11-22 00:01:50 +00:00
steve 03afbf157b %set/x0 instruction to support bounds checking. 2002-11-21 22:43:13 +00:00
steve 00b2d467e4 Allow right values of right shift to shift in. 2002-11-21 22:42:48 +00:00
steve 2fafe6866f Better handling of select width of shifters. 2002-11-21 18:08:09 +00:00
steve 91580d1fcc Generate unique labels for force functors. 2002-11-17 18:31:09 +00:00
steve 07e49e215e Use the vectorized %assign where appropriate. 2002-11-08 05:00:31 +00:00
steve db899bd1b5 Use Vector %set to set constants in variables. 2002-11-07 05:19:55 +00:00
steve c6dcc38fe0 Vectorize load from REG variables. 2002-11-07 03:12:17 +00:00
steve 46ee38b466 Concatenation can evaluate sub-expressions in place. 2002-11-06 05:41:37 +00:00
steve b4e8ea5a0c Install shared objects as programs, not data. 2002-11-05 02:14:41 +00:00
steve 32f1ca6f8b draw lpm ff with aset_expr taken into account. 2002-10-23 04:39:35 +00:00
steve fbee1b424d Properly set or clear expression lookaside for binary expressions. 2002-10-20 02:55:37 +00:00
steve 703ad04067 Allow expression lookaside map to spam statements. 2002-09-27 20:24:42 +00:00
steve 778e96330d Add thread expression lookaside map. 2002-09-27 16:33:34 +00:00
steve 166621bcb3 Generate vvp code for asynch set/reset of NetFF. 2002-09-26 03:18:04 +00:00
steve 6f23fa61ac Allow results in register bits 47 in certain cases. 2002-09-24 04:20:32 +00:00
steve 3d3116d48b Add support for binary NOR operator. 2002-09-18 04:29:55 +00:00
steve 5d6567cb02 Generate vvp code for structural flip-flops. 2002-09-17 05:37:45 +00:00
steve fb0383d2bd single bit optimization for != in expressions,
and expand ++ and != results if needed.
2002-09-13 04:09:51 +00:00
steve 28725d0d74 Optimize ==1 when in context where x vs z doesnt matter. 2002-09-13 03:12:50 +00:00
steve dac99b9374 Add support for binary nand operator. 2002-09-12 15:49:43 +00:00
steve 0a2a9dcd94 Fix leaking vthread bits in ?: eval. 2002-09-01 01:42:34 +00:00
steve c9b4b66af2 Watch for x indices in l-value of non-blocking assignments. 2002-09-01 00:19:35 +00:00
steve 7b6678b2a1 Fix reverse bit ordered bit select in continuous assignment. 2002-08-31 03:48:50 +00:00
steve e79f62c5fa Generate x out for x select on wide muxes. 2002-08-29 03:04:01 +00:00
steve cbca31555d Add the %subi instruction, and use it where possible. 2002-08-28 18:38:07 +00:00
steve d5aa700b4b Generate %load/nx for indexed load of nets. 2002-08-28 17:15:35 +00:00
steve aa390f2a91 Fix l-value indexing of memories and vectors so that
an unknown (x) index causes so cell to be addresses.

 Fix tangling of label identifiers in the fork-join
 code generator.
2002-08-27 05:39:57 +00:00
steve 985c34bfd9 Fix behavioral eval of x?a:b expressions. 2002-08-22 03:38:40 +00:00
steve 8ab2ec6f86 Allow release to handle removal of target net. 2002-08-19 00:06:11 +00:00
steve 52bf4e613f conditional ident string using autoconfig. 2002-08-12 01:34:58 +00:00
steve 774f78cd3e Autoconfig ident support. 2002-08-12 00:27:10 +00:00
steve aca1dcf848 Add missing Log and Ident strings. 2002-08-11 23:47:04 +00:00
steve cc74d2a6b0 Add force to nets. 2002-08-07 00:54:39 +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 41f7ecacfc Eliminate use of ivl_signal_name for signal labels. 2002-08-03 22:30:48 +00:00
steve 15becdaee4 Need driver for sure in assign feedback and other cases. 2002-07-18 02:06:37 +00:00
steve 18ba73382e Fix check for select size. 2002-07-16 03:15:11 +00:00
steve 31bd3e6056 Use all bits of ?: condit expression. 2002-07-12 18:10:45 +00:00
steve 472f98affe Generate code for wide muxes. 2002-07-08 04:04:07 +00:00
steve 301040a67a Avoid emitting to vvp local net symbols. 2002-07-05 21:26:17 +00:00
steve 3595b6d186 Carry can propagate to the otp in addi. 2002-07-01 00:52:47 +00:00
steve 5eca5d9948 Carry integerness throughout the compilation. 2002-06-21 04:59:35 +00:00
steve 24a2487c18 Generate %cmpi/u where appropriate. 2002-06-02 18:57:17 +00:00
steve cba5a22714 Generate %muli instructions when possible. 2002-05-31 20:04:57 +00:00
steve 95876feb46 Use addi with wide immediate values. 2002-05-30 01:57:23 +00:00
steve b6b364a09d Add %addi, which is faster to simulate. 2002-05-29 16:29:34 +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 e70e04d6e8 Handle x case of unary ! properly. 2002-05-07 03:49:58 +00:00
steve 4a7e14786c Tail size was wrong. 2002-04-23 05:18:05 +00:00
steve 1ddb736f4c Handle bitsel muxes of odd shaped outputs. 2002-04-23 05:06:31 +00:00
steve 9ef49379f4 Add support for non-constant bit select. 2002-04-23 03:53:59 +00:00
steve 96213fe0ac Keep delays applied to BUFZ devices. 2002-04-22 03:15:25 +00:00
steve d482da4803 Reduce the while loop expression if needed. 2002-04-22 02:41:30 +00:00
steve 5882c6a481 Redo handling of assignment internal delays.
Leave it possible for them to be calculated
 at run time.
2002-04-21 22:31:02 +00:00
steve f03ec88c2a Handle empty true case of conditional statements. 2002-04-14 19:19:21 +00:00
steve eb27dc8db3 Support signed integer division. 2002-04-14 18:41:34 +00:00
steve 84bf0cee59 Vector constants to vpi_call can have sign. 2002-04-14 03:54:40 +00:00
steve 3275d1f252 Support signed expressions through to VPI. 2002-04-14 02:56:19 +00:00
steve 7349a6beaf Generate port information in the .ufunc statement. 2002-03-18 00:18:50 +00:00
steve b7c2bd4f72 Add the NetUserFunc netlist node. 2002-03-09 02:10:22 +00:00
steve aa16e82102 Fix parameter bit select check for magic constants. 2002-02-03 05:53:00 +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 02f5ccd5d9 Handle constants with drive strength z 2002-01-12 17:49:41 +00:00
steve 361d4f2147 Drive strengths for continuous assignments. 2002-01-12 04:03:39 +00:00
steve 5840368f2d Handle certain special cases of stime. 2002-01-11 05:23:05 +00:00
steve 6be3be0f16 Constant values have drive strengths. 2002-01-06 03:15:43 +00:00
steve dd79885f6d Add structural modulus support down to vvp. 2002-01-03 04:19:01 +00:00
steve a5400d7212 Support all 3 TRI net types. 2001-12-15 02:13:33 +00:00
steve cd1524e6ca Generate notif functors. 2001-12-14 06:03:34 +00:00
steve 4dd5f97a96 Parse and handle drive strengths of gates to vvp. 2001-12-14 02:05:13 +00:00
steve ec4f8c80d5 Support functor delays for gates and UDP devices.
(Stephan Boettcher)
2001-12-06 03:31:24 +00:00
steve 2d3e85d941 Make sure fork labels are globally unique. 2001-12-05 05:41:20 +00:00
steve e00aedd99b Handle padding out of logical values. 2001-11-19 04:25:46 +00:00
steve 6e0b77a8da Generate force code for variable l-values. 2001-11-18 01:28:18 +00:00
steve 54bb59ae99 Support compile on MacosX 10.1.1 (Timothy J. Wood) 2001-11-17 17:57:58 +00:00
steve 08f0f5a1f7 DLL target support for force and release. 2001-11-14 03:28:49 +00:00
steve cc5ddc0b6b MacOSX 10.1 updates. 2001-11-04 05:03:21 +00:00
steve 560c003e03 make fork label into complete statemnt. 2001-11-01 19:31:40 +00:00
steve 5d20dd63ec Generate code for deassign and cassign. 2001-11-01 04:26:57 +00:00
steve d83fb10774 The ! expression returns 0 to x and z values. 2001-10-24 05:06:54 +00:00
steve 5a6cca33a0 Write resolvers before the .functor (PR#300) 2001-10-24 03:43:45 +00:00
steve 924b4e0062 unused idx warning. 2001-10-22 02:04:37 +00:00
steve 0e43dfb285 Remove useless code for drawing .var inputs. 2001-10-22 00:04:51 +00:00
steve 46621d3c83 wrong variable for clk input to memory. 2001-10-21 23:38:16 +00:00
steve 83d3a60d5c Add trailing ; to fork-join out labels. 2001-10-19 23:52:36 +00:00
steve d350620315 Support multiple root modules (Philip Blundell) 2001-10-19 21:53:24 +00:00
steve 73283768a5 Support rnpmos devices. (Philip Blundell) 2001-10-18 17:30:25 +00:00
steve ce7d64f427 Evaluate string expressions (Philip Blundell) 2001-10-18 16:41:49 +00:00
steve 177fa4062b Support IVL_LPM_DIVIDE for structural divide. 2001-10-16 02:19:26 +00:00
steve 821c68696d Generate %div instructions for binary /. 2001-10-16 01:27:17 +00:00
steve 42dab181cd Carry the type of the scope (Stephan Boettcher) 2001-10-15 02:58:27 +00:00
steve 2326672b3a Handle constant bits in arithmetic expressions. 2001-10-14 03:24:35 +00:00
steve 245905aeda Support vectors as operands to logical and. 2001-10-10 04:47:43 +00:00
steve c7bc35ad75 get CFLAGS from configure 2001-10-09 16:50:17 +00:00
steve 5071ce8575 handle nmos and pmos devices. 2001-10-09 02:28:44 +00:00
steve cbd501b865 Fix some Cygwin DLL handling. (Venkat Iyer) 2001-09-30 16:45:10 +00:00
steve bdf643ddb1 Generate code for unary minus (PR#272) 2001-09-29 04:37:44 +00:00
steve d46465845c Fix the size of unsized constant operants to compare (PR#274) 2001-09-29 01:53:22 +00:00
steve dd75595082 Handle short l-values to concatenation. 2001-09-20 03:46:38 +00:00
steve a73cfbc2b5 MacOS X compile time changes. (Timothy Wood) 2001-09-20 03:21:01 +00:00
steve b2b8b89cd8 Make configure detect malloc.h 2001-09-15 18:27:04 +00:00
steve f2068e83d4 Generate code for identity comparators. 2001-09-14 04:15:46 +00:00
steve a9e54e7553 dead comments. 2001-09-01 00:58:16 +00:00
steve 03b428b6cb Handle update in place of repeat constants. 2001-08-31 01:37:56 +00:00
steve b8be5e80cd Generate code for l-value bit selects. 2001-08-26 23:00:13 +00:00
steve e35ed6e91c Change the NetAssign_ class to refer to the signal
instead of link into the netlist. This is faster
 and uses less space. Make the NetAssignNB carry
 the delays instead of the NetAssign_ lval objects.

 Change the vvp code generator to support multiple
 l-values, i.e. concatenations of part selects.
2001-08-25 23:50:02 +00:00
steve 31aa85ce7d Handle wide assignment to narrow return value. 2001-08-23 02:54:15 +00:00
steve 15c2b0317d statement ends after while loop labels. 2001-08-16 03:45:17 +00:00
steve 2802601c44 tgt-vvp generates code that skips nets as inputs. 2001-08-10 00:40:45 +00:00
steve b72d1c297d More detailed messages about unsupported things. 2001-08-03 17:06:10 +00:00
steve 537757a7b9 Cleanup defines and types for mingw compile. 2001-07-30 02:44:05 +00:00
steve 00cacae2a3 Generate constant symbols for supply nets. 2001-07-28 03:18:50 +00:00
steve 1be77d68ce Evaluate part selects when passed to system tasks. 2001-07-28 01:18:07 +00:00
steve becc7cb56a Handle part select expressions as variants of
NetESignal/IVL_EX_SIGNAL objects, instead of
 creating new and useless temporary signals.
2001-07-27 04:51:44 +00:00
steve 629a02cccf Fix binding of dangling function ports. do not elide them. 2001-07-27 02:41:55 +00:00
steve bc284ee6d8 supply signals give input values. 2001-07-22 21:31:14 +00:00
steve 5c89fb71ae Handle repeat for concatenation expressions. 2001-07-22 19:33:51 +00:00
steve ce589da58a Support the NetESubSignal expressions in vvp.tgt. 2001-07-22 00:17:49 +00:00
steve cd8e491028 Support calculated delays in vvp.tgt. 2001-07-19 04:55:06 +00:00
steve 05407f488f Relax driver limit from 64 to forever (Stephan Boettcher) 2001-07-18 02:44:39 +00:00
steve 64837efac5 Nest resolvers when there are lots of drivers (Stephan Boettcher) 2001-07-16 18:31:49 +00:00
steve 8d73df2b04 Make vvp output executable (Stephan Boettcher) 2001-07-16 18:26:08 +00:00
steve c7b36322f6 Properly step through wide inputs. (Stephan Boettcher) 2001-07-09 15:38:35 +00:00
steve 8cc89a3a1f Pass parameters to system functions. 2001-07-07 20:20:10 +00:00
steve 1628045b55 Generate code for right shift. 2001-07-07 03:01:06 +00:00
steve 370549a19a Generate code for structural left shift. 2001-07-06 04:48:04 +00:00
steve ab7b353ace support fast programming by only writing the bits
that are listed in the input file.
2001-06-30 23:03:16 +00:00
steve baac893d22 Support non-const right shift (unsigned). 2001-06-30 21:07:26 +00:00
steve 45d4117c02 Handle null parameters to system tasks. 2001-06-29 02:41:05 +00:00
steve c4bd8b1463 Generate %shiftl instructions for shift. 2001-06-23 18:40:34 +00:00
steve 96d04bb5a0 Handle short inputs to tasks. (Stephan Boettcher) 2001-06-23 00:30:42 +00:00
steve 68a7ddefd3 Escaped identifiers in behavioral expressions. (Stephan Boettcher) 2001-06-21 04:53:59 +00:00
steve 81536481cc Add structural EEQ gates (Stephan Boettcher) 2001-06-19 03:01:10 +00:00
steve 82e8e51736 1. Logic with more than 4 inputs
2. Id and name mangling
  3. A memory leak in draw_net_in_scope()
  (Stephan Boettcher)
2001-06-18 03:10:34 +00:00
steve 4159c98c58 More behavioral unary reduction operators.
(Stephan Boettcher)
2001-06-18 01:09:32 +00:00
steve 4b82d26f5e Add support for structural multiply in t-dll.
Add code generators and vvp support for both
 structural and behavioral multiply.
2001-06-16 23:45:05 +00:00
steve bf42772995 Generate code to support memory access in continuous
assignment statements. (Stephan Boettcher)
2001-06-16 02:41:41 +00:00
steve b3a5a0e5ab Generate vvp code for GT and GE comparisons. 2001-06-15 04:14:18 +00:00
steve 5361efe8ed Account for carry out on add devices. 2001-06-07 04:20:10 +00:00
steve 2f2657b765 support subtraction in tgt-vvp. 2001-06-07 03:09:37 +00:00
steve f480943649 Support structural addition. 2001-06-07 02:12:43 +00:00
steve e68ba4c73a Attach noops to case labels. 2001-05-24 04:31:00 +00:00
steve 39ffe91230 Add behavioral modulus. 2001-05-24 04:20:10 +00:00
steve 660fd7c1d4 Update the mingw build to not require cygwin files. 2001-05-22 02:14:47 +00:00
steve 77d63aba74 make distclean target. 2001-05-20 17:13:27 +00:00
steve de8c725890 Mingw32 support (Venkat Iyer) 2001-05-20 15:09:39 +00:00
steve 8669b372e0 Implement reduction nor. 2001-05-20 01:18:38 +00:00
steve bdcb813727 Initial support for system functions. 2001-05-20 01:02:55 +00:00
steve 0872ad34cf Behavioral ternary operators for vvp. 2001-05-17 04:37:02 +00:00
steve bc6dfeb4a9 Skip the , in module lists. 2001-05-14 00:55:31 +00:00
steve 4d8954be4c Fixup the resolver syntax. 2001-05-12 16:34:47 +00:00
steve 1d0a9871c2 Generate resolvers for multiple drivers. 2001-05-12 03:31:01 +00:00
steve 44a182d92c VVP support for memories in expressions,
including general support for thread bit
 vectors as system task parameters.
 (Stephan Boettcher)
2001-05-10 00:26:53 +00:00
steve 914ad85e63 Add ivl and vvp.tgt support for memories in
expressions and l-values. (Stephan Boettcher)
2001-05-08 23:59:33 +00:00
steve 213cb1b08a Behavioral code to read memories. (Stephan Boettcher) 2001-05-06 17:54:33 +00:00
steve 558fea33fb Generate code that causes the value of a net to be passed
passed through all nets of a nexus.
2001-05-06 00:01:02 +00:00
steve d45c7c58df Generate code for the fully general event or. 2001-05-03 04:55:46 +00:00
steve b5e0f46229 Generate null statements for conditional labels. 2001-05-03 04:55:28 +00:00
steve 0f9eb13245 Remove the init parameter of functors, and instead use
the special C<?> symbols to initialize inputs. This is
 clearer and more regular.
2001-05-02 04:05:16 +00:00
steve 06437b7fba Support behavioral subtraction. 2001-05-02 01:57:25 +00:00
steve 3e3757bde7 Comparisons cant leave their results in the opcode
result area or their values will be clobbered by other
 parts of a complex expression.
2001-05-01 02:07:34 +00:00
steve 972e9c866b OR is %or. Get this right. 2001-04-30 05:11:18 +00:00
steve 3f952a2fd2 detect multiple drivers on nexa. 2001-04-30 00:00:27 +00:00
steve 2a44cf70b1 Add bufif and pull devices. 2001-04-29 23:16:31 +00:00
steve 31291f5d8a Evalulate logical or (||) 2001-04-29 20:47:39 +00:00
steve 861ed55879 Support marking vvp interpreter (Stephan Boettcher) 2001-04-28 20:06:07 +00:00
steve 73c4893ef7 Implement simple MUXZ for ?: operators. 2001-04-26 05:12:02 +00:00
steve 46e868d313 Fix generation of udp/comb definitions. 2001-04-24 02:59:52 +00:00
steve 8dfa322b8b Support for UDP devices in VVP (Stephen Boettcher) 2001-04-24 02:23:58 +00:00
steve 57b0d9691e Right shift by constant. 2001-04-21 03:26:23 +00:00
steve 7c6f496765 Add NAND and XNOR functors. 2001-04-21 02:04:01 +00:00
steve 67e72ce77e Left shift by a constant amount. 2001-04-21 01:49:17 +00:00
steve c97692d715 Generate code for disable. 2001-04-21 00:55:46 +00:00
steve 39bcdfb7b4 Use the new %fork syntax. 2001-04-18 05:12:03 +00:00
steve 41ce198a1f add XOR support. 2001-04-15 16:37:48 +00:00
steve 05e30ed43b Add support for behavioral xnor. 2001-04-15 04:07:56 +00:00
steve 70aeb980d8 vvp support for <= with internal delay. 2001-04-15 02:58:11 +00:00
steve 8205d0fcc9 Use event/or for wide anyedge statements. 2001-04-14 05:11:49 +00:00
steve 0550287658 Generate vvp code for functions with ports. 2001-04-06 02:28:02 +00:00
steve 82947a9343 Generate vvp code for the repeat statement. 2001-04-05 03:20:57 +00:00
steve b7fb806611 Generate signed .net and .var statements. 2001-04-05 01:38:24 +00:00
steve 898639d7bf Get signed compares working correctly in vvp. 2001-04-05 01:12:27 +00:00
steve 0653f859bc Support forever loops in the tgt-vvp target. 2001-04-04 04:50:35 +00:00
steve 1b2a6f8bed Fix broken look scanning down bits of number. 2001-04-04 04:28:41 +00:00
steve c6cf665c4a emit vpi parameters values as vectors. 2001-04-04 04:14:09 +00:00
steve 19c84ff9a2 Support non-blocking assignments. 2001-04-03 04:50:37 +00:00