Я хочу попробовать функцию BlackBox в долоте, но я получил предупреждение ниже и не могу пройти тест пик / пик:
Total FIRRTL Compile Time: 237.8 ms
WARNING: external module "BlackBoxSwap"(swap:BlackBoxSwap)was not matched with an implementation
WARNING: external module "BlackBoxSwap"(:BlackBoxSwap)was not matched with an implementation
WARNING: external module "BlackBoxSwap"(:BlackBoxSwap)was not matched with an implementation
WARNING: external module "BlackBoxSwap"(:BlackBoxSwap)was not matched with an implementation
file loaded in 0.398085417 seconds, 25 symbols, 15 statements
Исходный код, как показано ниже: package gcd
import chisel3._
import chisel3.util._
class BlackBoxSwap extends BlackBox with HasBlackBoxInline {
//class BlackBoxRealSwap extends BlackBox with HasBlackBoxResource {
val io = IO(new Bundle() {
//val clk = Input(Clock())
//val reset = Input(Bool())
val out2 = Output(UInt(16.W))
val out1 = Output(UInt(16.W))
val in2 = Input(UInt(16.W))
val in1 = Input(UInt(16.W))
})
//setResource("/real_swap.v")
setInline("BlackBoxSwap.v",
s"""
|module BlackBoxSwap (
| input [15:0] in1,
| input [15:0] in2,
| output [15:0] out1,
| output [15:0] out2
|);
|
|assign out1 = in2;
|assign out2 = in1;
|
|endmodule
""".stripMargin)
}
/**
* Compute GCD using subtraction method.
* Subtracts the smaller from the larger until register y is zero.
* value in register x is then the GCD
*/
class GCD extends Module {
val io = IO(new Bundle {
val value1 = Input(UInt(16.W))
val value2 = Input(UInt(16.W))
val loadingValues = Input(Bool())
val outputGCD = Output(UInt(16.W))
val outputValid = Output(Bool())
})
val x = Reg(UInt())
val y = Reg(UInt())
val swap = Module(new BlackBoxSwap)
when(x > y) { x := x - y }
.otherwise { y := y - x }
when(io.loadingValues) {
//x := io.value1
//y := io.value2
swap.io.in1 := io.value1
swap.io.in2 := io.value2
x := swap.io.out1
y := swap.io.out2
}
io.outputGCD := x
io.outputValid := y === 0.U
}
И я проверил сгенерированный RTL, кажется, это правильно.не могли бы вы помочь в этом?Большое спасибо!