matiec: Graph

Fix bug: XOR operator was broken for ANY_BIT types. No XOR__[DL]WORD__[DL]WORD functions were generated. 2017-09-20, by Andrey Skvortsov
Add some comments to code regarding backup/restore functions 2017-09-20, by mjsousa
fix initialization of variable (was not following ISO C++ rules) 2017-09-14, by Mario de Sousa
make generating backup/restore functions a command line option (off by default). 2017-08-30, by Mario de Sousa
add support for generating functions to backup/restore the internal state of the PLC. 2017-08-30, by Mario de Sousa
delete unused variable. 2017-08-29, by Mario de Sousa
handle POUs with no VAR .. END_VAR blocks 2017-08-03, by Mario de Sousa
fix bug introduced in previous commit (matiec was unable to parse SFC code) 2017-08-03, by Mario de Sousa
Fix tracking of line numbers in IL code (error messages were previously indicating incorrect line number). 2017-08-03, by Mario de Sousa
Fix bug in datatype narrowing algorithm affecting IL code. 2017-07-03, by Mario de Sousa
Set the symbol->token member in symbolic_variables_c objects. 2017-07-03, by Mario de Sousa
Debugging helper class: print value of tokens in debugging output. 2017-07-03, by Mario de Sousa
Fix bug: allow global variables of type DT (initial values for DT are not const!) 2017-05-09, by Paul Beltyukov
Add comment stating how to enable debug option in flex. 2017-04-16, by Andrey Skvortsov
merge 2017-04-16, by Mario de Sousa
Print error message when FB/Struct initial value contains other strcuts/FB/arrays (not yet supported by C code generator). 2017-04-16, by Mario de Sousa
Do datatype checking of initial values for structures and FBs, and print error messages when compiling erroneuos source code. 2017-04-05, by Mario de Sousa
fix bug in symbol_c::find_element() 2017-04-04, by Mario de Sousa
Acceept structure_element_declaration_c symbol as a possible (non base type) data type 2017-04-04, by Mario de Sousa
Add token references in structure_element_declaration_c 2017-04-04, by Mario de Sousa
Add token reference to all symbol_c, and add list_c::find_element() 2017-04-04, by Mario de Sousa
remove debug code left in by mistake in previous commit 2017-04-04, by Mario de Sousa
Access elements[] in list_c through a new get_element() method. 2017-04-03, by Mario de Sousa
Start implementation of datatype checking of initial values for structures and FBs. 2017-04-03, by Mario de Sousa
fix wrong common_ticktime if task interval is greater than 4.3 seconds 2017-04-12, by andrej skvortzov
Allow use of GLOBAL/EXTERNAL variables as control variable of FOR loop. 2017-04-09, by Mario de Sousa
Start adding support for explicit initialization of FB instances. Currently only allows initializing FB variables of elementary types. 2017-04-03, by Mario de Sousa
merge 2017-03-18, by Mario de Sousa
merge 2017-03-18, by mjsousa
merge 2017-03-18, by mjsousa
Fix date conversion function (seconds to Date_and_Time). First day of month was falling on previous month. 2017-02-19, by mjsousa
Fix error locations messed up in previous commit. 2017-01-25, by mjsousa
fix compilation of SFC transitions written in IL (compiler was entering endless loop) 2017-01-25, by Andrey Skvortsov
fix SFC timed qualifier (D, L, ...) with variable time (was generating wrong C code) 2017-01-25, by Andrey Skvortsov
Fix segmentation fault bug introduced by previous commit 2017-01-25, by Andrey Skvortsov
Correcty determine the datatype (TIME) of the parameters of SFC actions with timed qualifiers 2017-01-24, by mjsousa
Check that flex is installed during ./configure 2017-01-23, by Andrey Skvortsov
Fix code generation for XOR expressions in ST (add parenthesis) 2017-01-17, by Andrey Skvortsov
merge 2016-10-12, by Andrey Skvortsov
make autogenerated functions to be 'static inline' instead of 'inline' 2016-10-12, by Andrey Skvortsov
Merged mjsousa/matiec into default 2016-10-10, by Andrey Skvortsov
merge 2016-09-08, by mjsousa
Merged mjsousa/matiec into default 2016-06-28, by Andrey Skvortsov
fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop) 2016-06-02, by mjsousa
Only allow function invocation outside ST expressions when command line option is activated. 2016-05-26, by mjsousa
Ignore pragmas inside IL code when handling inline function calls. 2016-05-26, by mjsousa
Fix bug: correctly handle formal function calls in IL with no parameters. 2016-05-26, by mjsousa
Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data) 2016-05-26, by mjsousa
Add -warn flag when running flex -> warn of potential bugs 2016-05-26, by mjsousa
Add support for non-standard VOID datatype. May ony be used to define functions returning VOID. 2016-05-13, by mjsousa
Delete the YY_NO_UNPUT define, as we do use the unput() function. 2016-05-11, by mjsousa
Add support for non standard feature: allow POUs with no in, out and inout parameters 2016-05-11, by mjsousa
Add option to not add the EN and ENO parameters to every function and FB (generated C code becomes smaller, and uses less memory for function invocations) 2016-05-08, by mjsousa
Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed) 2016-05-07, by mjsousa
Created new branch fix_compilation_warnings fix_compilation_warnings 2016-06-28, by Andrey Skvortsov
fix compilation error about missing braces 2016-05-06, by Andrey Skvortsov
fix warning about overflow if matiec is running on 64-bit platform, 2016-05-06, by Andrey Skvortsov
fix C compilation warning about function prototype in __SET_EXTERNAL 2016-05-06, by Andrey Skvortsov
fix C compilation warning from gcc about /* inside of comment section. 2016-05-06, by Andrey Skvortsov
Update README.build file with instructions for crosscompiling to win32 2015-10-02, by mjsousa
Delete commented out code. 2015-06-08, by mjsousa
Fix FB calls in IL (FB variable name was showing up extraneously before the C function that initializes the POU containing the FB call) 2015-06-08, by mjsousa
Delete unused code. 2015-06-06, by mjsousa
Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. 2015-04-30, by mjsousa
transform CASE into if()..else if().. -> fixes 2 bugs (1)case within case statements, and (2)repeated elements in case options 2015-04-15, by mjsousa
Initialise arrays to their correct default values - Fix bug introduced in commit 477393b00f95 (2014-11-16) 2015-03-15, by mjsousa
Fixed reset of current_varqualifier when generating global initializers, causin RETAIN and other option to be ORed and applied to all subsequent global variables. 2015-03-12, by Edouard Tisserant
Do fill/narrow datatype analysis algorithm for derived_datatype_identifier_c (fixes bug related to arrays of arrays that was generating incorrect C code). 2015-03-09, by mjsousa
Better identification of error location in some error messages. 2015-02-15, by mjsousa
Fix bug introduced in 2014/10/19, while adding support for REF() opertors -> datatype checking was not catching datatype inconsistency errors! 2015-02-15, by mjsousa
merge 2015-01-22, by mjsousa
Re-write and fix the logic of SFC action modifiers. 2015-01-10, by mjsousa
Correct the number given to actions in the #define's 2015-01-10, by mjsousa
Do not allow constant_propagation algorithm go into infinite loop when analysing code with circular references. 2015-01-16, by mjsousa
Do constant propagation of FBs instantiated in other FB or Programs, so that variable sized arrays can be declared in FBs too. 2015-01-16, by mjsousa
Do constant propagation of instantiated FBs, so that variable sized arrays can be declared in FBs too. 2015-01-11, by mjsousa
Let get_datatype_info_c handle variable sized arrays, even if constant folding is not yet done. 2015-01-11, by mjsousa
Correctly analyse external<->global var compatibility when using variable sized arrays (TODO: does not yet work for FBs!) 2015-01-08, by mjsousa
Add comment about bug that needs to be fixed later on. 2014-12-30, by mjsousa
Break constant_folding_c in two classes: constant_folding_c and constant_propagation_c 2014-12-30, by mjsousa
Add check whether the same constant var_external variable is initialised with two (or more) different constant values. 2014-12-30, by mjsousa
Change algorithm for propagating VAR_GLOBAL constant values to corresponding VAR_EXTERNAL. 2014-12-30, by mjsousa
Disable constant propagation again (still not working correctly) 2014-12-28, by mjsousa
Make support for use of variables in array size declarations a command line option (off by default) 2014-12-28, by mjsousa
Add debug_c::print(const_value_c) for printing of const values. 2014-12-28, by mjsousa
Add is_undefined() method to const_value_c 2014-12-28, by mjsousa
Make error message more informative. 2014-12-28, by mjsousa
Add comments. 2014-12-27, by mjsousa
Add checks for use of non constant value in subranges, and lower_limit > upper_limit. 2014-12-26, by mjsousa
Fix previous commit (symtable operator[] must return a reference to the stored value!) 2014-12-26, by mjsousa
Do constant propagation of configuration/resource variables, taking into account scope of variables. 2014-12-26, by mjsousa
Change dsymbtable_c -> use design pattern used by C++ standard library (STL) 2014-12-26, by mjsousa
Change symbtable_c -> use design pattern used by C++ standard library (STL) 2014-12-26, by mjsousa
Remove debugging code left in by mistake. 2014-12-26, by mjsousa
Do constant propagation inside Configurations and Resources (required for support of extension: array [1..max] OF int); (Resources is still buggy) 2014-12-26, by mjsousa
Do constant folding of default initial values of datatypes. 2014-12-25, by mjsousa
Do constant propagation to symbolic_variables, and correctly handle constant folding and propagation of variable declarations. 2014-12-24, by mjsousa
When generating C code, use the const_value of a symbolic_variable when it is used in a subrange. 2014-12-17, by mjsousa
Small code re-organization of how const values are stored in symbol_c (can now be accessed through member functions, instead of macros) 2014-12-17, by mjsousa
Fix bugs introduced in previous commit (once again do constant folding of all literals in type declarations) 2014-12-14, by mjsousa
Do constant folding of variable's initial value (allows correct C code generation with variables in the subrange of an array declaration: ARRAY [1..max] of INT). 2014-12-14, by mjsousa
Delete un-used declaration. 2014-12-10, by mjsousa
merge 2014-12-10, by mjsousa
Allow variables to be used when declaring the dimension of an array. 2014-11-22, by mjsousa
Fix C code generation when forward references (-p command line option) is on. 2014-12-06, by mjsousa
Add a new pou_typename_c object to the AST to store references to previously declared Functions, FB, and Programs. 2014-12-06, by mjsousa
Delete unused file. 2014-11-30, by mjsousa
Make use of pre-parser a command line option. 2014-11-30, by mjsousa
Fix AST generated by parsing with preparsing switched OFF (typo in array datatypes, and fix parsing of POUs). 2014-11-30, by mjsousa
Fix AST generated by parsing with preparsing switched on, and allow parsing to work with preparsing off. 2014-11-29, by mjsousa
Fix bug introduced when adding support for relaxed datatype model: change derived_datatype_identifier_c to identifier_c when used as an identifier 2014-11-29, by mjsousa
Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared) 2014-11-29, by mjsousa
Comment out unused and buggy code. 2014-11-29, by mjsousa
Update the comments in source code. 2014-11-27, by mjsousa
Fix bug introduced when adding support for relaxed datatype model. Code cleanup. 2014-11-26, by mjsousa
Fix main state machine in flex (states were being pushed without being poped from the stack) 2014-11-23, by mjsousa
merge 2014-11-16, by mjsousa
Make the relaxed datatype model a runtime option (off by default) 2014-11-16, by mjsousa
Add support for relaxed datatype model for array datatypes. 2014-11-16, by mjsousa
fix bug introduced a few commits ago: do not print the first char ('%') of a direct_variable_c (e.g. skip % in %IW4.2) 2014-11-09, by mjsousa
fix code generation when dereferencing pointers (ref_to) to arrays (ref_to_array^[5]) 2014-10-25, by mjsousa
Fix bug: set the scope annotation in deref_operators used inside structs 2014-10-25, by mjsousa
Editing of error message to make it more clear. 2014-10-25, by mjsousa
Filling of symbol->scope annotation moved from narrow to fill_candidate_datatypes_c (became possible because narrowing of struct, array and symbolic variables is now done directly in fill_candidate_datatypes_c) 2014-10-25, by mjsousa
fill_candidate_datatypes_c now uses search_varinstance_decl_c instead of search_varfb_instance_type_c (moving towards deprecation of search_varfb_instance_type_c) 2014-10-25, by mjsousa
Do the full fill_candidate/narrow_datatype algorithm for all fields of a structured variable in the fill_candidate_datatypes_c 2014-10-19, by mjsousa
Fix bug with multple dereferencing (bool_var := bool_ptr_ptr^^;) 2014-10-19, by mjsousa
Fix bug: Add support for de-referencing pointers to struct (struct_ptr^.elem1) when used inside FB. 2014-10-19, by mjsousa
Fix bug: add support for dereferencing of REF_TO to REF_TO xxx (e.g.: bool_var := ref_to_ref_to_bool^^;) 2014-09-28, by mjsousa
Turn support of derefencing operator '^' an option (default is not supported). 2014-09-28, by mjsousa
Add support for de-referencing of REF_TO datatypes (Note: dereferencing of arrays and structs not yet supported!) 2014-09-28, by mjsousa
Add support for REF_TO inside arrays and structs (a non-standard feature!) 2014-09-27, by mjsousa
Code cleanup: with the introduction of anotation_map[], generate_c_vardecl_c can now derive directly from generate_c_base_c 2014-08-11, by mjsousa
Fix typos in comments 2014-08-11, by mjsousa
Add comments, and make get_datatype_id_str_c equivalent to get_datatype_id_c 2014-08-11, by mjsousa
Fix calling of functions whose parameters are of an implicitly declared datatype (currently only makes sense for REF_TO datatypes, but may make sense to other datatypes too if the datatype model is changed in the future). 2014-08-11, by mjsousa
fix indentations. 2014-08-10, by mjsousa
in lvalue, add check for REF() fucntion invocation, and the NULL literal 2014-08-10, by mjsousa
Initialise REF_TO variables to NULL. 2014-08-09, by mjsousa
Make support for REF_TO ANY a command line option. 2014-08-09, by mjsousa
Add support for non standard REF_TO ANY (equivalent to void *) 2014-08-09, by mjsousa
Update some comments. (No changes to code) 2014-08-08, by mjsousa
Introduce absyntax class for keyword ANY, and use REF_TO(ANY) as datatype of NULL literal. 2014-08-08, by mjsousa
Fix bug (introduced a few commits ago) when generating SFC actions that are mapped onto variables --> Make generate_sfcdecl_c stateless (i.e. does not depend on order by which it is called). 2014-08-06, by mjsousa
Add support for the 'NULL' keyword, defined in version 3 of IEC 61131-3. 2014-07-31, by mjsousa
for option '-Op' (generate <pouname>.h/c): add '#include <pouname>.h' to the .c file, and '#ifdef <pouname>_H' to the .h file 2014-07-29, by mjsousa
Ass include of iec_std_lib.h in POUS.h file. 2014-07-25, by mjsousa
Add support for implicitly declared REF_TO datatypes. 2014-07-21, by mjsousa
With -Op option --> Place implicitly defined datatypes in the .h file corresponding to the POU where they are used. 2014-07-20, by mjsousa
Add name of POU as prefix to names of implicitly defined datatypes 2014-07-20, by mjsousa
Implicitly defined array datatypes use new naming method (greatly simplifies stage 4 code). 2014-07-20, by mjsousa
array_specification_c may be used as a datatype! Add it to spec_init_separator_c 2014-07-20, by mjsousa
Change REF() operator to return the correct REF_TO datatype datatype. 2014-07-13, by mjsousa
Narrow array subscripts correctly, even in the presence of other datatype errors (so we do not generate error messages for array subscripts that do not contain errors). 2014-07-13, by mjsousa
Add support for REF_TO derived datatypes (along with datatype verification) 2014-07-13, by mjsousa
Add option to place each POU in a distinct .c and .h file pair. 2014-07-06, by mjsousa
code re-organisation. Preparing for the changes to come in the next commit (one C file for each POU) 2014-07-06, by mjsousa
Remove un-used parameter from class constructor. 2014-07-06, by mjsousa
Move standard FBs to a pre-converted C file, insted of converting them every time along with the IEC source. 2014-07-06, by mjsousa
Move library files compiled to C to their own subdiectory. 2014-07-06, by mjsousa
Fix stupid mistake in previous commit (use 'long double' instead of 'ld' in istandard library macro) 2014-07-06, by mjsousa
merge 2014-07-05, by mjsousa
Update build/compile instructions to reflect the fact that autoconf needs to be executed. 2014-07-05, by mjsousa
Fix time conversion function in std library, and change into macro (so it may be used in variable initialisations) 2014-07-05, by mjsousa
Add support for the stepname.T syntax. 2014-06-01, by mjsousa
Change the name of the variable with the step state to stepname.X (in the generated VARIABLES.csv file) 2014-06-01, by mjsousa
Add support for Stepname.X syntax. 2014-05-31, by mjsousa
Remove dead code previously left in by mistake. 2014-05-31, by mjsousa
Add error message for invalid datatype of transition condition. Generalize datatype narrowing algorithm for transition conditions. 2014-05-29, by mjsousa
merge 2014-05-28, by Edouard Tisserant
closed temporary fix branch 2014-05-28, by Edouard Tisserant
Check VAR_EXTERN variables declared in FBs instantiated in a Program (and recursively too - FBs in FBs). 2014-05-20, by mjsousa
Fix typo in as yet dormant code (related to REF_TO keyword, that is not yet active) 2014-05-20, by mjsousa
Fix compilation error on platforms where real64_t is mapped onto 'long double' 2014-05-08, by mjsousa
Correctly handle structured variables that include FB and external FBs (example: FB1.FB2.extFB3.FB4.extFB5.extFB6.structvar.field1 := 42;) (this commit fixes only ST code. TODO: IL and SFC) 2014-04-08, by mjsousa
Remove call to type_is_complex() in ST code generation. 2014-04-04, by mjsousa
A little code cleanup (reduce number of possible variable generation states) 2014-03-31, by mjsousa
Finish: Change order of SET_xxx() macros. (this will allow me to simplify the print_setter() methods later on) 2014-03-30, by mjsousa
Change order of SET_xxx() macros. (this will allow me to simplify the print_setter() methods later on) 2014-03-29, by mjsousa
More static declarations in POUS.c in order to avoid conflicting symbol definitions with new POUS.c inclusion scheme 2014-03-27, by Edouard Tisserant
Fix multiple resources support, POUS.c now only contain static definitions. POUS.c is included in configuration C code as well as in resources to allow GLOBAL FBs to be declared in configurations 2014-03-26, by Edouard Tisserant
Disable stage4 options with on windows since getsuboptr isn't supported in mingw 2014-03-20, by Edouard Tisserant
merge 2014-03-20, by Edouard Tisserant
Track of line number correctly when input file has code with very long lines. 2014-03-19, by mjsousa
Fix memory leak in lexical parser. 2014-03-19, by mjsousa
Make generation of #line directives optional. 2014-03-16, by mjsousa
Insert #line directives in generated C code. 2014-03-16, by mjsousa
Add support for parsing of REF_TO keyword (defined in IEC61131-3 v3). This support is currently inactive (in flex) until we get to add C code generation later on. 2014-03-15, by mjsousa
Update files to be ignored by mercurial: ignore files generated by autoconf, directory test/, and *.orig 2014-03-15, by mjsousa
Fix bug: do not print IL 'label' when generating inline functions (JMPxx label was generating erroneous C code) 2014-03-02, by mjsousa
Add limited support for the REF() operator (defined in v3 of IEC 61131-3) 2014-03-02, by mjsousa
Remove assertion being failed by IL labels (IL labels do not yet have specific datatypes). 2014-02-24, by mjsousa