34 lines
598 B
Scala
34 lines
598 B
Scala
package BACK
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import chisel3._
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import chisel3.util._
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class Encryptor_IO_Bundle extends Bundle{
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val init = Flipped(Valid(UInt(128.W)))
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val op = Decoupled(UInt(8.W))
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}
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class Encryptor extends Module{
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val io: Encryptor_IO_Bundle = IO(new Encryptor_IO_Bundle)
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val encryptReg = Reg(UInt(128.W))
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when( io.init.valid ){
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encryptReg := io.init.bits
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} .elsewhen( io.op.fire ){
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encryptReg := Cat(encryptReg(119,0), io.op.bits)
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}
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val opValid = RegInit(false.B)
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when( io.init.fire ){
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opValid := true.B
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}
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io.op.valid := opValid
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io.op.bits := encryptReg(127, 120)
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}
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