pram.dat

debussy中文使用手册

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// *  of Novas Software Inc.                                              *
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/* Debussy tutorial case: A simplified microprogramming-based CPU
   file name: pram.dat
   description: This file contains the program rom's contents
		which represents system operation based on the macroinstruction 
*/
//opcode_operand  // hex   addr    assembly code
    0000_0100      // 04    00     CLRA        ;A=0
    0011_0100      // 34    01     ADDA #55   ;A=55
    0101_0101      // 55    02
    0010_1000      // 28    03     STA  $20    ;($20)=55
    0010_0000      // 20    04
    0000_1100      // 0c    05     TAX         ;X=55
    0101_0100      // 54    06     LDX  #20   ;X=20
    0010_0000      // 20    07
    0000_1000      // 08    08     INCA        ;A=$56
    0010_1100      // 2c    09     STA_  $01,X  ;($(01+20))=56
    0000_0001      // 01    0A
    0100_1000      // 48    0B     SUBA $20    ;A=$56-($20)=1
    0010_0000      // 20    0C
    0001_1000      // 18    0D     LDA  $21    ;A=$56
    0010_0001      // 21    0E
    0011_1000      // 38    0F     ADDA- $20    ;A=$56+($20)
    0010_0000      // 20    10
    0010_1000      // 28    11     STA  $22    ;($22)=111
    0010_0010      // 22    12
    0000_0100      // 04    13     CLRA        ;A=0
    0011_0100      // 34    14     ADDA #2   ;A=5
    0000_0010      // 02    15
    0010_1000      // 28    16     STA  $23    ;($23)=2
    0010_0011      // 22    17
    0001_0100      // 14    18     LDA  10    ;A=10
    0000_1010      // 10    19
    1000_1100      // 8c    1a     JMP  $30    
    0011_0000      // 30    1b
@30
    0100_1000      // 48    37     SUBA $23    ;
    0010_0011      // 23    38
    0110_0100	   // 64    39	   BNZ #30
    0011_0000