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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 11 |
1 files changed, 6 insertions, 5 deletions
@@ -257,7 +257,7 @@ for them: - Non-synthesizable language features as defined in IEC 62142(E):2005 / IEEE Std. 1364.1(E):2002 -- The ``tri``, ``triand``, ``trior``, ``wand`` and ``wor`` net types +- The ``tri``, ``triand`` and ``trior`` net types - The ``config`` and ``disable`` keywords and library map files @@ -413,12 +413,13 @@ Verilog Attributes and non-standard features $ yosys -p 'plugin -a foo -i /lib/libm.so; read_verilog dpitest.v' - Sized constants (the syntax ``<size>'s?[bodh]<value>``) support constant - expressions as <size>. If the expression is not a simple identifier, it + expressions as ``<size>``. If the expression is not a simple identifier, it must be put in parentheses. Examples: ``WIDTH'd42``, ``(4+2)'b101010`` -- The system tasks ``$finish`` and ``$display`` are supported in initial blocks - in an unconditional context (only if/case statements on parameters - and constant values). The intended use for this is synthesis-time DRC. +- The system tasks ``$finish``, ``$stop`` and ``$display`` are supported in + initial blocks in an unconditional context (only if/case statements on + expressions over parameters and constant values are allowed). The intended + use for this is synthesis-time DRC. - There is limited support for converting specify .. endspecify statements to special ``$specify2``, ``$specify3``, and ``$specrule`` cells, for use in |