cputest2.dat

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/******************************************************************************
 * Test program 2 for the VeriRisc CPU system, Verilog Training Course.
 * 
 *
 * This diagnostic program tests the advanced instruction set of the VeriRisc
 * system.  If the system executes each instruction correctly, then it should
 * halt when the HLT instruction at address 10(hex) is executed.
 *
 * If the system halts at any other location, then an instruction did not
 * execute properly.  Refer to the comments in this file to see which
 * instruction failed.
 *
 * WARNING: The CPUtest1 diagnostic program should be completed successfully
 *          before this test is run.
 *****************************************************************************/

//opcode_operand  // addr                   assembly code
//--------------  // ----  -----------------------------------------------
@00 101_11011     //  00   BEGIN:  LDA DATA_2
    011_11100     //  01           AND DATA_3 
    100_11011     //  02           XOR DATA_2
    001_00000     //  03           SKZ
    000_00000     //  04           HLT         //AND doesn't work
    010_11010     //  05           ADD DATA_1
    001_00000     //  06           SKZ
    111_01001     //  07           JMP ADD_OK
    000_00000     //  08           HLT         //ADD doesn't work
    100_11100     //  09           XOR DATA_3
    010_11010     //  0A           ADD DATA_1  //FF plus 1 makes -1
    110_11101     //  0B           STO TEMP
    101_11010     //  0C           LDA DATA_1
    010_11101     //  0D           ADD TEMP    //-1 plus 1 should make zero
    001_00000     //  0E           SKZ
    000_00000     //  0F           HLT         //ADD Doesn't work
    000_00000     //  10   END:    HLT         //CONGRATULATIONS - TEST2 PASSED!
    111_00000     //  11           JMP BEGIN   //run test again

@1A 00000001      //  1A   DATA_1:             //constant  1(hex)
    10101010      //  1B   DATA_2:             //constant AA(hex)
    11111111      //  1C   DATA_3:             //constant FF(hex)
    00000000      //  1D   TEMP: