ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; KCPSM3 Program - Control and calculation for Frequency Generator design using the
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;                 Spartan-3E Starter Kit.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; Interfaces with the rotary encoder and LCD display to enable a frequency to be set.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; Converts the BCD frequency value into a binary integer and then performs the high
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; precision calculation necessary to derive the control numbers required by the high
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; performance Direct Digital Synthesis (DDS) circuit implemented in hardware.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; LEDs are connected and used as edit mode indicators.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; Substantial comments are included in line with the code below and should be used
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; in conjunction with the documentation provided with the complete reference design.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; Ken Chapman - Xilinx Ltd
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; Version v1.00 - 13th July 2006
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;**************************************************************************************
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;Port definitions
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;**************************************************************************************
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;LCD interface ports
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;The master enable signal is not used by the LCD display itself
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;but may be required to confirm that LCD communication is active.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;This is required on the Spartan-3E Starter Kit if the StrataFLASH
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;is used because it shares the same data pins and conflicts must be avoided.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_output_port
  OP1 VALUE-LCD_output_port
   OPERAND2-40
  OP2 VALUE-40
    COMMENT-;   LCD character module output data and control
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_E
  OP1 VALUE-LCD_E
   OPERAND2-01
  OP2 VALUE-01
    COMMENT-;   active High Enable        E - bit0
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_RW
  OP1 VALUE-LCD_RW
   OPERAND2-02
  OP2 VALUE-02
    COMMENT-;   Read=1 Write=0           RW - bit1
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_RS
  OP1 VALUE-LCD_RS
   OPERAND2-04
  OP2 VALUE-04
    COMMENT-;   Instruction=0 Data=1     RS - bit2
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;CONSTANT LCD_drive, 08              ;   Master enable (active High) - bit3
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_DB4
  OP1 VALUE-LCD_DB4
   OPERAND2-10
  OP2 VALUE-10
    COMMENT-;   4-bit              Data DB4 - bit4
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_DB5
  OP1 VALUE-LCD_DB5
   OPERAND2-20
  OP2 VALUE-20
    COMMENT-;   interface          Data DB5 - bit5
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_DB6
  OP1 VALUE-LCD_DB6
   OPERAND2-40
  OP2 VALUE-40
    COMMENT-;                      Data DB6 - bit6
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_DB7
  OP1 VALUE-LCD_DB7
   OPERAND2-80
  OP2 VALUE-80
    COMMENT-;                      Data DB7 - bit7
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_input_port
  OP1 VALUE-LCD_input_port
   OPERAND2-01
  OP2 VALUE-01
    COMMENT-;    LCD character module input data
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_read_DB4
  OP1 VALUE-LCD_read_DB4
   OPERAND2-10
  OP2 VALUE-10
    COMMENT-;    4-bit           Data DB4 - bit4
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_read_DB5
  OP1 VALUE-LCD_read_DB5
   OPERAND2-20
  OP2 VALUE-20
    COMMENT-;    interface       Data DB5 - bit5
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_read_DB6
  OP1 VALUE-LCD_read_DB6
   OPERAND2-40
  OP2 VALUE-40
    COMMENT-;                    Data DB6 - bit6
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-LCD_read_DB7
  OP1 VALUE-LCD_read_DB7
   OPERAND2-80
  OP2 VALUE-80
    COMMENT-;                    Data DB7 - bit7
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;Control of frequency selection values
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-cursor_position
  OP1 VALUE-cursor_position
   OPERAND2-10
  OP2 VALUE-10
    COMMENT-; Pointer to edit position on LCD
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; ************************
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;Constant to define a software delay of 1us. This must be adjusted to reflect the
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;clock applied to KCPSM3. Every instruction executes in 2 clock cycles making the
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;calculation highly predictable. The '6' in the following equation even allows for
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;'CALL delay_1us' instruction in the initiating code.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-; delay_1us_constant =  (clock_rate - 6)/4       Where 'clock_rate' is in MHz
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;Example: For a 50MHz clock the constant value is (50-6)/4 = 11  (0B Hex).
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;For clock rates below 10MHz the value of 1 must be used and the operation will
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;become lower than intended.
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-delay_1us_constant
  OP1 VALUE-delay_1us_constant
   OPERAND2-0B
  OP2 VALUE-0B
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;ASCII table
    ADDRESS-000
      LABEL-
INSTRUCTION-
   OPERAND1-
  OP1 VALUE-
   OPERAND2-
  OP2 VALUE-
    COMMENT-;
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_a
  OP1 VALUE-character_a
   OPERAND2-61
  OP2 VALUE-61
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_b
  OP1 VALUE-character_b
   OPERAND2-62
  OP2 VALUE-62
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_c
  OP1 VALUE-character_c
   OPERAND2-63
  OP2 VALUE-63
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_d
  OP1 VALUE-character_d
   OPERAND2-64
  OP2 VALUE-64
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_e
  OP1 VALUE-character_e
   OPERAND2-65
  OP2 VALUE-65
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_f
  OP1 VALUE-character_f
   OPERAND2-66
  OP2 VALUE-66
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_g
  OP1 VALUE-character_g
   OPERAND2-67
  OP2 VALUE-67
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_h
  OP1 VALUE-character_h
   OPERAND2-68
  OP2 VALUE-68
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_i
  OP1 VALUE-character_i
   OPERAND2-69
  OP2 VALUE-69
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_j
  OP1 VALUE-character_j
   OPERAND2-6A
  OP2 VALUE-6A
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_k
  OP1 VALUE-character_k
   OPERAND2-6B
  OP2 VALUE-6B
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_l
  OP1 VALUE-character_l
   OPERAND2-6C
  OP2 VALUE-6C
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_m
  OP1 VALUE-character_m
   OPERAND2-6D
  OP2 VALUE-6D
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_n
  OP1 VALUE-character_n
   OPERAND2-6E
  OP2 VALUE-6E
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_o
  OP1 VALUE-character_o
   OPERAND2-6F
  OP2 VALUE-6F
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_p
  OP1 VALUE-character_p
   OPERAND2-70
  OP2 VALUE-70
    COMMENT-
    ADDRESS-000
      LABEL-
INSTRUCTION-CONSTANT
   OPERAND1-character_q
  OP1 VALUE-character_q
   OPERAND2-71
  OP2 VALUE-71
    COMMENT-
    ADDRESS-000