Chisel's Diplomacy minial example based on https://github.com/chipsalliance/rocket-chip/blob/master/docs/src/diplomacy/select_tutorial.md
make adder_exampleBy default 2-operand, 8-bit adder test modules are generated:
src/main/scala/adder_example/Top.scala
class AdderTestHarness()(implicit p: Parameters) extends LazyModule {
val numOperands = 2
val bitWidth = 8
// val numOperands = 4- Generated
TestHarness.v
module Adder(
input [7:0] auto_in_1,
input [7:0] auto_in_0,
output [7:0] auto_out
);
assign auto_out = auto_in_0 + auto_in_1; // @[LazyModule.scala 173:49]
endmoduleIf you change AdderTestHarness class variable like that:
class AdderTestHarness()(implicit p: Parameters) extends LazyModule {
// val numOperands = 2
// val bitWidth = 8
val numOperands = 4
val bitWidth = 164-operand, 16-bit adder test modules are generated.
module Adder(
input [15:0] auto_in_3,
input [15:0] auto_in_2,
input [15:0] auto_in_1,
input [15:0] auto_in_0,
output [15:0] auto_out
);
wire [15:0] _T_6 = auto_in_0 + auto_in_1; // @[Adder.scala 30:51]
wire [15:0] _T_8 = _T_6 + auto_in_2; // @[Adder.scala 30:51]
assign auto_out = _T_8 + auto_in_3; // @[LazyModule.scala 173:49]
endmodule
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