in.dat

一个小单片机的verilog源代码, 包含说明文档

// op       in         // i//  Instruction
   0110_____0111_1111  // 1//  Input A (A=0111_1111)
   0111_____0000_0001  // 2//  Input B (B=0000_0001)

   0000_____XXXX_XXXX  // 3//  C=A+B Overflow=1
   1011_____XXXX_XXXX  // 4//  Output C (C=1000_0000)
                                  
   0001_____XXXX_XXXX  // 5//  C=A-B
   1011_____XXXX_XXXX  // 6//  Output C (C=0111_1110)

   0010_____XXXX_XXXX  // 7//  C=A+1 Overflow=1
   1011_____XXXX_XXXX  // 8//  Output C (C=1000_0000)

   0011_____XXXX_XXXX  // 9//  C=A-1
   1011_____XXXX_XXXX  //10//  Output C (C=0111_1110)

   0100_____XXXX_XXXX  //11//  C=A+B+1 Overflow=1
   1011_____XXXX_XXXX  //12//  Output C (C=1000_0001)

   0101_____XXXX_XXXX  //13//  C=-A
   1011_____XXXX_XXXX  //14//  Output C (C=1000_0001)

   1001_____XXXX_XXXX  //15//  Store C  (address=Reg_B=0000_0001)
   1010_____XXXX_XXXX  //16//  Load C   (address=0000_0001)
   1011_____XXXX_XXXX  //17//  Output C (C=1000_0001)

   1000_____1010_1010  //18//  Input  memory (address=0000_0001)
   1100_____XXXX_XXXX  //19//  Output memory (address=0000_0001)  
                                             (Output=1010_1010)

   1101_____XXXX_XXXX  //20//  A=C  (A=C=1000_0001)
   1110_____XXXX_XXXX  //21//  B=C  (B=C=1000_0001)

   0000_____XXXX_XXXX  //22//  C=A+B
   1011_____XXXX_XXXX  //23//  Output C (C=0000_0010)