diff options
| -rw-r--r-- | README | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -317,6 +317,18 @@ Verilog Attributes and non-standard features ... endmodule +- A limited subset of DPI-C functions is supported. The plugin mechanism + (see "help plugin") can be used load .so files with implementations of + DPI-C routines. As a non-standard extension it is possible to specify + a plugin alias using the "<alias>:" syntax. for example: + + module dpitest; + import "DPI-C" function foo:round = real my_round (real); + parameter real r = my_round(12.345); + endmodule + + $ 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 expresion is not a simple identifier, it must be put in parentheses. Examples: WIDTH'd42, (4+2)'b101010 |