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author | 1138-4EB <1138-4EB@users.noreply.github.com> | 2017-02-20 04:21:24 +0100 |
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committer | tgingold <tgingold@users.noreply.github.com> | 2017-12-10 12:02:05 +0100 |
commit | bfb47bd712511b42c66094c649fee89cd621fe32 (patch) | |
tree | fa2100400778266fdfce51e152513cb5233f7518 /NEWS.md | |
parent | 7423f48c2d85c8439181a4213ae65b2c1ed833af (diff) | |
download | ghdl-bfb47bd712511b42c66094c649fee89cd621fe32.tar.gz ghdl-bfb47bd712511b42c66094c649fee89cd621fe32.tar.bz2 ghdl-bfb47bd712511b42c66094c649fee89cd621fe32.zip |
README.md, index, WhatIsVHDL, WhatIsGHDL ready for review.
Add shortcuts for shields in a single file and include it where used.
Create base64 GitHub and Travis-CI logos with b64.io and add them to self-created shields. Replace gitter with shield.io's variant.
Start rewriting <Contributing>
Diffstat (limited to 'NEWS.md')
-rw-r--r-- | NEWS.md | 734 |
1 files changed, 366 insertions, 368 deletions
@@ -1,440 +1,438 @@ -# NEWS for ghdl (Dunoon Edition) - **v0.34-dev** -* Display stack backtraces on errors or assert failures -* Compile scripts for vendor libraries (Xilinx, Altera, osvvm, vunit) -* Use SSE2 for mcode backend -* Mode backend ported to `x86_64` -* Support cocotb [potentialventures/cocotb](https://github.com/potentialventures/cocotb) -* Main repository is now on github: [github.com/tgingold/ghdl](https://github.com/tgingold/ghdl) -* Docs available on rtd: [ghdl.readthedocks.org](https://ghdl.readthedocs.org/en/latest/) -* Speed improved. -* New option `--psl-report`, to report status of PSL assert and cover. -* VHDL2008: support nested packages +- Display stack backtraces on errors or assert failures +- Compile scripts for vendor libraries (Xilinx, Altera, osvvm, vunit) +- Use SSE2 for mcode backend +- Mode backend ported to `x86_64` +- Support cocotb [potentialventures/cocotb](https://github.com/potentialventures/cocotb) +- Main repository is now on github: [github.com/tgingold/ghdl](https://github.com/tgingold/ghdl) +- Docs available on rtd: [ghdl.readthedocks.org](https://ghdl.readthedocs.org/en/latest/) +- Speed improved. +- New option `--psl-report`, to report status of PSL assert and cover. +- VHDL2008: support nested packages **v0.33** (2015-10-04) -* Improve support of VHDL2008 -* Support [OSVVM](http://osvvm.org) 2015 -* Support VUnit: [LarsAsplund/vunit](https://github.com/LarsAsplund/vunit) -* Many bugs fixed +- Improve support of VHDL2008 +- Support [OSVVM](http://osvvm.org) 2015 +- Support VUnit: [LarsAsplund/vunit](https://github.com/LarsAsplund/vunit) +- Many bugs fixed **v0.32** (2014-11-XX) -* Updated to build with `gcc-4.9.2`. -* support: - * partial of VHDL2008 (available with `--std=08`): - * new `std.env` package. - * added features in `std.textio` package - * all standard IEEE packages. - * new operations (relation operators, maximum and minimum, unary reduction operators) - * `boolean_vector`, `integer_vector`, `real_vector`. - * process(all). - * generic packages and interface package declarations. - * block comments (aka delimited comments) - * implicitely defined to_string functions. - * OSVVM 2014_01 -* Bugs fixed +- Updated to build with `gcc-4.9.2`. +- support: + - partial of VHDL2008 (available with `--std=08`): + - new `std.env` package. + - added features in `std.textio` package + - all standard IEEE packages. + - new operations (relation operators, maximum and minimum, unary reduction operators) + - `boolean_vector`, `integer_vector`, `real_vector`. + - process(all). + - generic packages and interface package declarations. + - block comments (aka delimited comments) + - implicitely defined to_string functions. + - OSVVM 2014_01 +- Bugs fixed **v0.31** (2014-01-XX) -* Updated to build with `gcc-4.8.2`. -* Supports OSVVM (Open-Source VHDL Verification Methodology) (see [osvvm.org](http://osvvm.org)) in its VHDL-2002 form. -* Adds `'image` and `'value` attributes for all required datatypes -* Many bugs and support issues fixed. -* New home on `https://sourceforge.net/projects/ghdl-updates/` +- Updated to build with `gcc-4.8.2`. +- Supports OSVVM (Open-Source VHDL Verification Methodology) (see [osvvm.org](http://osvvm.org)) in its VHDL-2002 form. +- Adds `'image` and `'value` attributes for all required datatypes +- Many bugs and support issues fixed. +- New home on `https://sourceforge.net/projects/ghdl-updates/` **v0.30** Never released, swith to Dunoon Edition. **v0.29** (2010-01-09) -* Initial implementation of embedded PSL assertions. -* Improve: - * speed of non-sensitized processes. - * speed of string case statement (dichotomy instead of linear search). -* bug fix: - * and improvements in SDF annotator. - * when the bound of a string literal type is not locally static. - * gcov crash +- Initial implementation of embedded PSL assertions. +- Improve: + - speed of non-sensitized processes. + - speed of string case statement (dichotomy instead of linear search). +- bug fix: + - and improvements in SDF annotator. + - when the bound of a string literal type is not locally static. + - gcov crash **v0.28** (2009-09-17) -* Add `--std=08` to enable VHDL2008 features. -* Support all-sensitized processes from VHDL2008. -* Documentation typos (thanks to Peter Huewe). -* bug fix: - * handle `'pos/'leftof/'rightof/'succ/'pred` in concurrent statements. - * overloaded resolution functions. - * direct drivers elaboration for unconstrained array signals. - * many minor bugs. +- Add `--std=08` to enable VHDL2008 features. +- Support all-sensitized processes from VHDL2008. +- Documentation typos (thanks to Peter Huewe). +- bug fix: + - handle `'pos/'leftof/'rightof/'succ/'pred` in concurrent statements. + - overloaded resolution functions. + - direct drivers elaboration for unconstrained array signals. + - many minor bugs. **v0.27** (2008-07-01) -* Improve SDF annotation (handles much more annotations) -* Add `--ieee-asserts=` option to control assert messages from ieee packages. -* bug fix: - * aliases in port map - * crash during elaboration for top entities with ports/generic - * crash when string literal in aggregate. - * concatenation with an array subtype element. - * non-static subtype used by type conversions in associations. - * clear timeout in wait for. - * minor bugs. +- Improve SDF annotation (handles much more annotations) +- Add `--ieee-asserts=` option to control assert messages from ieee packages. +- bug fix: + - aliases in port map + - crash during elaboration for top entities with ports/generic + - crash when string literal in aggregate. + - concatenation with an array subtype element. + - non-static subtype used by type conversions in associations. + - clear timeout in wait for. + - minor bugs. **v0.26** (2007-04-08) -* `GHDL_PREFIX` environment variable overrides default installation prefix. -* simulation speed improved with 'direct drivers'. -* windows version: - * exceptions are caught - * use executable path instead of registry for prefix -* bug fix: - * individual association by expression (was not working) - * individual association of string - * within windows code generator - * [windows] large local variables crashed - * crash when overloaded aggregate target. - * forbid individual association with open - * crash when bad array prefix - * correctly extract sensitivity of record aggregate +- `GHDL_PREFIX` environment variable overrides default installation prefix. +- simulation speed improved with 'direct drivers'. +- windows version: + - exceptions are caught + - use executable path instead of registry for prefix +- bug fix: + - individual association by expression (was not working) + - individual association of string + - within windows code generator + - [windows] large local variables crashed + - crash when overloaded aggregate target. + - forbid individual association with open + - crash when bad array prefix + - correctly extract sensitivity of record aggregate **v0.25** (2006-08-11) -* VPI functions to schedules values. -* `math_real` now works under windows. -* documentation updated for windows. -* filename/line number displayed for range error during signal update. -* bug fix: - * ieee math libraries available when `--ieee=synopsys`. - * `'image` in package bodies. - * scan of fp literals. - * interface identifier is checked for conformance rules. - * avoid a crash in case of error in configuration specification. - * non-static choice in unidim case are now correctly checked. - * do not crash in case of bad use of incomplete type. - * `'range` are not expressions. - * handle file declaration in concurrent procedure calls. - * correctly handle static `'image` attribute. - * handle in-conversion for signal associated with an expression. - * emit an error when a function tries to exit without a return. +- VPI functions to schedules values. +- `math_real` now works under windows. +- documentation updated for windows. +- filename/line number displayed for range error during signal update. +- bug fix: + - ieee math libraries available when `--ieee=synopsys`. + - `'image` in package bodies. + - scan of fp literals. + - interface identifier is checked for conformance rules. + - avoid a crash in case of error in configuration specification. + - non-static choice in unidim case are now correctly checked. + - do not crash in case of bad use of incomplete type. + - `'range` are not expressions. + - handle file declaration in concurrent procedure calls. + - correctly handle static `'image` attribute. + - handle in-conversion for signal associated with an expression. + - emit an error when a function tries to exit without a return. **v0.24** (2006-06-25) -* Handle enums with more than 256 elements. -* Relax expr static rules in 93c to analyze Xilinx core lib from 8.1 -* man page, `ghdl.1`, added. -* windows installer improved -* bug fix: - * correctly handle empty file name. - * correctly handle unused subprograms of protected types. - * avoid a crash if unused library are used. - * avoid crashes during error reports. - * add a missing case array conversion. - * build on `x86_64`. - * code generated for conversion after mod/rem (windows version). - * `-fexplicit` crashed with `std.standard` functions. - * handle recursion of pure/wait checks. - * correctly handle error cases of user attributes - * time and character read procedure of std.textio. - * initialize by value parameters (instead of copy-in). +- Handle enums with more than 256 elements. +- Relax expr static rules in 93c to analyze Xilinx core lib from 8.1 +- man page, `ghdl.1`, added. +- windows installer improved +- bug fix: + - correctly handle empty file name. + - correctly handle unused subprograms of protected types. + - avoid a crash if unused library are used. + - avoid crashes during error reports. + - add a missing case array conversion. + - build on `x86_64`. + - code generated for conversion after mod/rem (windows version). + - `-fexplicit` crashed with `std.standard` functions. + - handle recursion of pure/wait checks. + - correctly handle error cases of user attributes + - time and character read procedure of std.textio. + - initialize by value parameters (instead of copy-in). **v0.23** (2006-05-16) -* bug fix: - * handle implicit conversion in resolution functions. - * missing implicit conversion added. - * avoid a crash in error. +- bug fix: + - handle implicit conversion in resolution functions. + - missing implicit conversion added. + - avoid a crash in error. **v0.22** (2006-03-28) -* direntry added in `ghdl.texi` -* updated: - * Documentation (explain bug in Xilinx unisim library). - * to `gcc 4.1` - * math_real -* bug fix: - * avoid crash if type conversion is indexed/sliced - * do not allow anymore uncomplete individual association - * missing check on array association - * check bounds for val attribute on enumerated type - * array inequality of locally static expressions evaluated - * configuration issue - * `--warn-no-vital-generic` is now working +- direntry added in `ghdl.texi` +- updated: + - Documentation (explain bug in Xilinx unisim library). + - to `gcc 4.1` + - math_real +- bug fix: + - avoid crash if type conversion is indexed/sliced + - do not allow anymore uncomplete individual association + - missing check on array association + - check bounds for val attribute on enumerated type + - array inequality of locally static expressions evaluated + - configuration issue + - `--warn-no-vital-generic` is now working **v0.21** (2005-12-18) -* local optimizations (loops, indexed name). -* simulation speed improved by 20% due to processes mngt optimizations. -* stack-switching code ported to `x86_64` (`amd64/em64t`). -* stack-switching code ported to `ia64`. -* `--syn-binding` option extended (see documentation). -* bug fix: - * line number for some bound violation messages. - * improved message error for deferred constants. - * file parameter for functions. - * universal real divided by integer handled in locally static expr. - * `std_ulogic` types and arrays are known by VPI. - * missing space added in VCDs for integers. - * `CR+LF` is also end of line for `std.textio.readline`. - * avoid a crash if parse error on choice. - * handle `'image` in nested subprograms. - * handle `'image` for floating point types. - * do not use varargs C calls. - * handle missing `EOL` for `readline`. - * for `x86_64` +- local optimizations (loops, indexed name). +- simulation speed improved by 20% due to processes mngt optimizations. +- stack-switching code ported to `x86_64` (`amd64/em64t`). +- stack-switching code ported to `ia64`. +- `--syn-binding` option extended (see documentation). +- bug fix: + - line number for some bound violation messages. + - improved message error for deferred constants. + - file parameter for functions. + - universal real divided by integer handled in locally static expr. + - `std_ulogic` types and arrays are known by VPI. + - missing space added in VCDs for integers. + - `CR+LF` is also end of line for `std.textio.readline`. + - avoid a crash if parse error on choice. + - handle `'image` in nested subprograms. + - handle `'image` for floating point types. + - do not use varargs C calls. + - handle missing `EOL` for `readline`. + - for `x86_64` **v0.20** (2005-10-15) -* stack memory usage improved for shortcurt operations. -* gtkwave now displays nice waves for bit and std_ulogic signals. -* time unit is displayed in assert/report message. -* `-fexplicit` option added. -* integers are now written in VCD files. -* hash table added for design_units (speed optimization). -* range checks slightly optimized. -* `--vcdz` run time option added. -* improved error message for invalid expressions. -* grt now compiles with GNAT-GPL-2005 (use a GNAT bug work-around). -* bug fix: - * handle more types for `--dump-rti` and `--wave`. - * `'last_event` and `'last_active` (bad value returned when no previous event or activity). - * `'image` attribute for physical types (was bad unit). - * `'image` attribute for locally static integers. - * for reading `.ghw` files. - * in `--xref`. +- stack memory usage improved for shortcurt operations. +- gtkwave now displays nice waves for bit and std_ulogic signals. +- time unit is displayed in assert/report message. +- `-fexplicit` option added. +- integers are now written in VCD files. +- hash table added for design_units (speed optimization). +- range checks slightly optimized. +- `--vcdz` run time option added. +- improved error message for invalid expressions. +- grt now compiles with GNAT-GPL-2005 (use a GNAT bug work-around). +- bug fix: + - handle more types for `--dump-rti` and `--wave`. + - `'last_event` and `'last_active` (bad value returned when no previous event or activity). + - `'image` attribute for physical types (was bad unit). + - `'image` attribute for locally static integers. + - for reading `.ghw` files. + - in `--xref`. **v0.19** (2005-08-17) -* `ADAFLAGS` has been replaced by `GHDL_ADAFLAGS` to ease compilation. -* `ieee.math_real` and `ieee.math_complex` added (only partially, based on a +- `ADAFLAGS` has been replaced by `GHDL_ADAFLAGS` to ease compilation. +- `ieee.math_real` and `ieee.math_complex` added (only partially, based on a draft). -* current time is printed with assert/report messages. -* stack switch assembly code ported to powerpc-linux. -* documentation on how to use grt from Ada added. -* allow indexes of indexed names to be non-static in case statements (93c only) +- current time is printed with assert/report messages. +- stack switch assembly code ported to powerpc-linux. +- documentation on how to use grt from Ada added. +- allow indexes of indexed names to be non-static in case statements (93c only) (this is not standard, but I can't see why it should be required). -* unbound ports of entities are now reported with `--warn-binding`. -* some error or warning messages improved. -* `--wave` option added to dump waveforms (using ghw file format). -* bug fix: - * internal error (missing close_temp for implicit read) - * `--xref-html`: avoid to reanalyze unit. - * handle implicit conversion for `'image`. - * aggregate assigned to an aggregate: avoid crash. - * array attributes on unconstrained array: avoid crash. - * `'last_event` returns `time'high` if no event. - * `'last_event` on array (uninitialized variable). - * allow calling `rising_edge` with a port of mode buffer. - * allow aliases of unconstrained arrays. - * bound error on aggregate with an unused other association. - * catch indexed/sliced component (was crashing). - * catch index/slice of a type conversion (was crashing). - * handle bad component specification in conf (was crashing). - * missing ports in component (was crashing). - * component configurations were dicarded by bug in some cases. - * no more unused warnings for subprograms in architectures (they may be used in configuration). - * allow conversion in component configuration. - * conversion in associations with not statically defined array signals. +- unbound ports of entities are now reported with `--warn-binding`. +- some error or warning messages improved. +- `--wave` option added to dump waveforms (using ghw file format). +- bug fix: + - internal error (missing close_temp for implicit read) + - `--xref-html`: avoid to reanalyze unit. + - handle implicit conversion for `'image`. + - aggregate assigned to an aggregate: avoid crash. + - array attributes on unconstrained array: avoid crash. + - `'last_event` returns `time'high` if no event. + - `'last_event` on array (uninitialized variable). + - allow calling `rising_edge` with a port of mode buffer. + - allow aliases of unconstrained arrays. + - bound error on aggregate with an unused other association. + - catch indexed/sliced component (was crashing). + - catch index/slice of a type conversion (was crashing). + - handle bad component specification in conf (was crashing). + - missing ports in component (was crashing). + - component configurations were dicarded by bug in some cases. + - no more unused warnings for subprograms in architectures (they may be used in configuration). + - allow conversion in component configuration. + - conversion in associations with not statically defined array signals. **v0.18** (2005-03-12) -* Keep last line number to speed-up line number look-up (improvement). -* `--warn-default-binding` added, `--warn-binding` rewritten. -* `'value` implemented for integer numbers. -* bug fix: - * in `textio.read` for time. - * `file_close` does not crash if file was already closed. - * spurious unused warnings for protected types. - * allow subtype names in slice during sensitivity extraction. - * correctly set the default value of collapsed ports. - * handling of stack2 (aka large concatenation bug). +- Keep last line number to speed-up line number look-up (improvement). +- `--warn-default-binding` added, `--warn-binding` rewritten. +- `'value` implemented for integer numbers. +- bug fix: + - in `textio.read` for time. + - `file_close` does not crash if file was already closed. + - spurious unused warnings for protected types. + - allow subtype names in slice during sensitivity extraction. + - correctly set the default value of collapsed ports. + - handling of stack2 (aka large concatenation bug). **v0.17** (2005-02-26) -* command `--elab-run` added. -* Code generation for aggregate improved. -* Library name of option `--work=` is checked. -* `--no-run` option added to prevent simulation (may be used to disp tree only). -* disp signal name in error when multiple sources drive an unresolved signal. -* `-m`/`--gen-makefile` now handle several libraries. -* dependences are not stored anymore in libraries (shorter/faster). -* mentor version of ieee library is now provided. -* handling of universal types is more consistent with LRM (almost corner cases). -* iterator and indexes whose bounds were universal expressions are now of type integer or erroneous, according to the weird LRM rules. -* handle selected name as entity name in architecture/configuration. -* bug fix: - * port map with expression (corner case ?). - * forbid empty extended identifiers. - * enumeration literal xrefs. - * non-object name in sensitivity list crashed. - * correctly handle alias of signals in processes. +- command `--elab-run` added. +- Code generation for aggregate improved. +- Library name of option `--work=` is checked. +- `--no-run` option added to prevent simulation (may be used to disp tree only). +- disp signal name in error when multiple sources drive an unresolved signal. +- `-m`/`--gen-makefile` now handle several libraries. +- dependences are not stored anymore in libraries (shorter/faster). +- mentor version of ieee library is now provided. +- handling of universal types is more consistent with LRM (almost corner cases). +- iterator and indexes whose bounds were universal expressions are now of type integer or erroneous, according to the weird LRM rules. +- handle selected name as entity name in architecture/configuration. +- bug fix: + - port map with expression (corner case ?). + - forbid empty extended identifiers. + - enumeration literal xrefs. + - non-object name in sensitivity list crashed. + - correctly handle alias of signals in processes. **v0.16** (2005-01-02) -* `std.textio`: readline has no limits on line length. -* command `-r` (run) added. -* bug fix: - * better handling of errors in type conversion. - * few uninitialized variables in ghdl itself caught. - * parse error: `begin` in aggregates. - * bad `unused subprogram` warnings. +- `std.textio`: readline has no limits on line length. +- command `-r` (run) added. +- bug fix: + - better handling of errors in type conversion. + - few uninitialized variables in ghdl itself caught. + - parse error: `begin` in aggregates. + - bad `unused subprogram` warnings. **v0.15** (2004-10-13) -* library file format modified to handle relative pathes. -* install fixed to use relative pathes. -* internal change: ortho API modified (constant are not anymore expressions). +- library file format modified to handle relative pathes. +- install fixed to use relative pathes. +- internal change: ortho API modified (constant are not anymore expressions). **v0.14** (2004-08-29) -* pretty printing in HTML command, `--pp-html`, added. -* xref generation in HTML command, `--xref-html`, added. -* syntax checking command, `-s`, added. -* Code generation in whole command, `-c files -e unit`, added. -* warns for unused subprograms. -* bug box added to help bug reports. -* `-s` (syntax check) command added. -* Missing grt subprogram to close non-text file added. -* maximum line length of `std.textio.readline` extended to 512 characters. -* `std.textio.readline` assert error on truncated lines. -* Handle P32 and P64 in `--trace-signals` -* sequentials statements are not canonicalized (should be faster). -* `DESTDIR` added in Makefile to ease packaging. -* for `-m` command, re-parse modified files of the work library. -* Many checks added on interfaces. -* Many checks added on associations, better handling of conversions. -* Checks for unassociated entity ports at elaboration. -* bug fix: - * resolution function can be an expanded name. - * missing type check in a corner case. - * emit an error when `EOF` is reached while a text file is read. - * `std.textio.read` for negative number. - * `std.textio.read` [integer]: correctly handle end of line. - * parameters of protected type: handled and checked. - * `gen_tree.c` modified to work with sparc. +- pretty printing in HTML command, `--pp-html`, added. +- xref generation in HTML command, `--xref-html`, added. +- syntax checking command, `-s`, added. +- Code generation in whole command, `-c files -e unit`, added. +- warns for unused subprograms. +- bug box added to help bug reports. +- `-s` (syntax check) command added. +- Missing grt subprogram to close non-text file added. +- maximum line length of `std.textio.readline` extended to 512 characters. +- `std.textio.readline` assert error on truncated lines. +- Handle P32 and P64 in `--trace-signals` +- sequentials statements are not canonicalized (should be faster). +- `DESTDIR` added in Makefile to ease packaging. +- for `-m` command, re-parse modified files of the work library. +- Many checks added on interfaces. +- Many checks added on associations, better handling of conversions. +- Checks for unassociated entity ports at elaboration. +- bug fix: + - resolution function can be an expanded name. + - missing type check in a corner case. + - emit an error when `EOF` is reached while a text file is read. + - `std.textio.read` for negative number. + - `std.textio.read` [integer]: correctly handle end of line. + - parameters of protected type: handled and checked. + - `gen_tree.c` modified to work with sparc. **v0.13** (2004-06-26) -* support of 64bits integers and 32bits time (not yet user available) -* handle `'high` and `'low` attributes on non-locally static types and subtypes. -* Many warning switches added (to control output of warnings). -* `--gen-makefile` mode added to ghdl (to generate a Makefile) -* alias identifier restrictions of vhdl-02 implemented. -* declarative region for architecture from vhdl-02 implemented. -* buffer port association rules of vhdl-02 implemented. -* method operator restrictions of vhdl-02 implemented. -* `'driving` and `'driving_value` implemented. -* run-time bound check error message now contains file name and line number. -* strings are not stored anymore with the identifiers. -* parser does not back-track anymore. -* bug fix: - * name clash in generated `.s` files (arch and port/generic names). - * implicit conversion of signal parameters. - * handle locally static type conversion of arrays. - * stabilize during elaboration of an unconstrained signal. - * revert previous `vhdl87` conf spec bug fix, according to INT-1991 issue 27. - * multiple visibility of declarations (eg: direct and alias). - * names attribute of non-object aliases. +- support of 64bits integers and 32bits time (not yet user available) +- handle `'high` and `'low` attributes on non-locally static types and subtypes. +- Many warning switches added (to control output of warnings). +- `--gen-makefile` mode added to ghdl (to generate a Makefile) +- alias identifier restrictions of vhdl-02 implemented. +- declarative region for architecture from vhdl-02 implemented. +- buffer port association rules of vhdl-02 implemented. +- method operator restrictions of vhdl-02 implemented. +- `'driving` and `'driving_value` implemented. +- run-time bound check error message now contains file name and line number. +- strings are not stored anymore with the identifiers. +- parser does not back-track anymore. +- bug fix: + - name clash in generated `.s` files (arch and port/generic names). + - implicit conversion of signal parameters. + - handle locally static type conversion of arrays. + - stabilize during elaboration of an unconstrained signal. + - revert previous `vhdl87` conf spec bug fix, according to INT-1991 issue 27. + - multiple visibility of declarations (eg: direct and alias). + - names attribute of non-object aliases. **v0.12** (2004-05-30) -* simulation speed improved (2 fold) due to reduced activity optimization. -* type conversion handled in associations -* make mode of ghdl improved. -* bug fix: - * attribute specification - * allow discrete type marks in choices - * handling of generate statement for VCD - * allow dereference in variable associations - * allow function conversion in block port map - * vhdl87: apply configuration specification inside generate stmts. - * catch non-passive concurrent procedure calls in entity. - * association of an unconstrained port with an expression. - * declaring an uncons. array subtype of an uncons. array subtype. +- simulation speed improved (2 fold) due to reduced activity optimization. +- type conversion handled in associations +- make mode of ghdl improved. +- bug fix: + - attribute specification + - allow discrete type marks in choices + - handling of generate statement for VCD + - allow dereference in variable associations + - allow function conversion in block port map + - vhdl87: apply configuration specification inside generate stmts. + - catch non-passive concurrent procedure calls in entity. + - association of an unconstrained port with an expression. + - declaring an uncons. array subtype of an uncons. array subtype. **v0.11.1** (2004-04-24) -* bug fix: - * corner case of signal not updated - * handle `'stable`, `'quiet` with a paramater > 0 - * typos (missing `+ `) in sparc.S +- bug fix: + - corner case of signal not updated + - handle `'stable`, `'quiet` with a paramater > 0 + - typos (missing `+ `) in sparc.S **v0.11** (2004-04-17) -* signal collapsing improved. -* simulation kernel speed improved (maybe 5x faster). -* `--lines` mode of ghdldrv added. -* boolean signals are now dumped in vcd files. -* bug fix: - * in code generation for an aggregate. - * run-time check of ascending order of projected transactions. - * empty sequence of stmts in case alternatives (unidim array). - * evaluation of locally static 'range attribute. - * implicit conversion in formal function convertor. - * return type is a type mark. +- signal collapsing improved. +- simulation kernel speed improved (maybe 5x faster). +- `--lines` mode of ghdldrv added. +- boolean signals are now dumped in vcd files. +- bug fix: + - in code generation for an aggregate. + - run-time check of ascending order of projected transactions. + - empty sequence of stmts in case alternatives (unidim array). + - evaluation of locally static 'range attribute. + - implicit conversion in formal function convertor. + - return type is a type mark. **v0.10** (2004-02-28) -* architecture with many instances can be compiled with less memory. -* `--stats` option added to the simulator, to evaluate performance. -* signals are now collapsed between instances, if possible. -* simulation is about 3x faster. -* sparc port available (source only). -* more checks added for attribute specification. -* chop command added (split files by design unit). -* bug fix: - * absolute source files. - * empty sequence of statements in case alternatives. +- architecture with many instances can be compiled with less memory. +- `--stats` option added to the simulator, to evaluate performance. +- signals are now collapsed between instances, if possible. +- simulation is about 3x faster. +- sparc port available (source only). +- more checks added for attribute specification. +- chop command added (split files by design unit). +- bug fix: + - absolute source files. + - empty sequence of statements in case alternatives. **v0.9** (2004-02-01) -* VITAL level 0 restrictions checks added. -* VITAL 2000 packages provided. -* run-time information (such as signal names) rewritten. -* SDF support added (partial and experimental). -* bug fix: - * allow elaboration even if no package body if the package is present in a file but not used by the hierarchy. - * `delay_length` range is pre-elaborated (was not in v93). - * crashed when a design unit is not found at elaboration. - * allow association of `'stable`, `'quiet`... with signal interfaces. - * concurrent procedure call creates a non-sensitized process. - * effective value of non-scalar resolved signal might not be set. +- VITAL level 0 restrictions checks added. +- VITAL 2000 packages provided. +- run-time information (such as signal names) rewritten. +- SDF support added (partial and experimental). +- bug fix: + - allow elaboration even if no package body if the package is present in a file but not used by the hierarchy. + - `delay_length` range is pre-elaborated (was not in v93). + - crashed when a design unit is not found at elaboration. + - allow association of `'stable`, `'quiet`... with signal interfaces. + - concurrent procedure call creates a non-sensitized process. + - effective value of non-scalar resolved signal might not be set. **v0.8** (2003-11-05) -* protected types (from 1076a/1076-2000) implemented. -* file declarations are finalized in subprograms. -* an exit call-back has been added in the run-time library. -* internal modifications (nodes are stored in a table). -* name of generated executable can be set with `-o` option. -* IVI (ivi.sourceforge.org) support through a few VPI subprograms. -* pure and wait checks added. -* out ports are correctly dumped in VCD files. -* bug fix: - * signal declaration not allowed in processes. - * several bugs fixed. +- protected types (from 1076a/1076-2000) implemented. +- file declarations are finalized in subprograms. +- an exit call-back has been added in the run-time library. +- internal modifications (nodes are stored in a table). +- name of generated executable can be set with `-o` option. +- IVI (ivi.sourceforge.org) support through a few VPI subprograms. +- pure and wait checks added. +- out ports are correctly dumped in VCD files. +- bug fix: + - signal declaration not allowed in processes. + - several bugs fixed. **v0.7** (2003-08-02) -* layout of internal nodes improved. -* incremental binding (vhdl93). -* association of in port with expressions (vhdl93). -* `--disp-time` option added. -* make mode (`ghdl -m`) rewritten. -* `'simple_name`, `'path_name` and `'instance_name` added (vhdl93). -* bug fix: - * instantiation added in hierarchy. - * individual association of subelements by expression. - * `--stop-delta` option is working. - * correctly handle operators names at function call. - * several small bugs fixed. +- layout of internal nodes improved. +- incremental binding (vhdl93). +- association of in port with expressions (vhdl93). +- `--disp-time` option added. +- make mode (`ghdl -m`) rewritten. +- `'simple_name`, `'path_name` and `'instance_name` added (vhdl93). +- bug fix: + - instantiation added in hierarchy. + - individual association of subelements by expression. + - `--stop-delta` option is working. + - correctly handle operators names at function call. + - several small bugs fixed. **v0.6** (2003-06-09) -* internal modifications (single linked list used instead of arrays). -* Mentor version of std_logic_arith is provided. -* postponed handled (vhdl 93). -* declarations allowed in a generate statement (vhdl 93). -* non object aliases handled (vhdl93). -* signatures handled (vhdl93). -* bug fix: - * `xnor` on `bit` and `boolean` is working. - * `selected_name` list in use clauses. - * many other small bug fixes. +- internal modifications (single linked list used instead of arrays). +- Mentor version of std_logic_arith is provided. +- postponed handled (vhdl 93). +- declarations allowed in a generate statement (vhdl 93). +- non object aliases handled (vhdl93). +- signatures handled (vhdl93). +- bug fix: + - `xnor` on `bit` and `boolean` is working. + - `selected_name` list in use clauses. + - many other small bug fixes. **v0.5** (2003-05-10) -* foreign attribute handled. You can now call subprograms defined in a foreign +- foreign attribute handled. You can now call subprograms defined in a foreign language (such as C or Ada). -* ghdl entry point added: you can start the VHDL simulation from your own +- ghdl entry point added: you can start the VHDL simulation from your own program. -* bug fix: - * triple use. - * incomplete types +- bug fix: + - triple use. + - incomplete types **v0.4.1** (2003-04-07) -* bug fix: in the vcd output. +- bug fix: in the vcd output. **v0.4** (2003-04-02) -* `libgrt` does not depend on GNAT library anymore. +- `libgrt` does not depend on GNAT library anymore. Installation requirements are reduced. -* `'delayed` attribute implemented. -* `'transaction` attribute implemented. -* unaffected (from vhdl-93) implemented. -* ghdl action `--disp-standard` prints the std.standard package. -* exponentiation operator, `**`, implemented for all integer and floating +- `'delayed` attribute implemented. +- `'transaction` attribute implemented. +- unaffected (from vhdl-93) implemented. +- ghdl action `--disp-standard` prints the std.standard package. +- exponentiation operator, `**`, implemented for all integer and floating point types. -* many other small bug fixes. -* bug fix: subprogram interfaces are now elaborated. +- many other small bug fixes. +- bug fix: subprogram interfaces are now elaborated. |