基于汇编语言的电子琴设计（2）
六、程序清单：
主要程序代码如下：
；宏定义
DRAW MACRO START_X,START_Y,END_X,END_Y,COLOR
LOCAL DRAW_NEXT
；local ：避免宏重复调用时，标号的重复
；功能：画填充的矩形
；使用条件：START_X < END_X ,START_Y < END_Y
PUSH AX
PUSH BX
PUSH CX
PUSH DX
MOV AH,0CH ；写像素点
MOV AL,COLOR ；设置颜色
MOV BH,0 ；选用页号0
MOV CX,START_X ；列起始点
MOV DX,START_Y ；行起始点
DRAW_NEXT:
INT 10H ；画点
INC CX ；画横线
CMP CX,END_X ；比较行是否画完
JNE DRAW_NEXT ；画另一行
MOV CX, START_X ；另一行的起始点
INC DX
CMP DX,END_Y ；比较列是否画完
JNE DRAW_NEXT ；未完继续画
POP DX
POP CX
POP BX
POP AX
ENDM
DRAWSQRE MACRO START_X,START_Y,END_X,END_Y,COLOR
LOCAL ROW_UP,ROW_DOWN,RANK_LEFT,RANK_RIGHT
；功能：画不填充的矩形
PUSH AX
PUSH BX
PUSH CX
PUSH DX
PUSH SI
MOV AH,0CH
MOV
MOV BH,0
MOV CX,START_X
MOV DX,START_Y
ROW_UP: ；画上边
INT 10H
INC CX
CMP CX,END_X
JNE ROW_UP
RANK_RIGHT: ；画右边
INT 10H
INC DX
CMP DX,END_Y
JNE RANK_RIGHT
MOV CX, START_X ；下边起始点
MOV SI,END_X
INC SI
ROW_DOWN: ；画下边
INT 10H
INC CX
CMP CX,SI
JNE ROW_DOWN
MOV DX,START_Y ；右边起始点
MOV CX,START_X
RANK_LEFT: ；画右边
INT 10H
INC DX
CMP DX, END_Y
JNE RANK_LEFT
POP SI
POP DX
POP CX
POP BX
POP AX
ENDM
；数据段
DATA SEGMENT
；定义在屏幕绘制字
START_COL DB ? ；存储起始行
TEXT DB 16 ；起始行
DB 2 ；起始列
DB 06H ；字体颜色
DB 'Piano XP',0FFH,'Copyright(c)Auto-5-5th',0FFH,0FFH ；显示字
DB 10 DUP(2 DUP(0DBH),2 DUP(20H)),0FFH ；颜色交叉矩形
DB 10 DUP(2 DUP(20H),2 DUP(0DBH)),0FFH
DB 10 DUP(2 DUP(0DBH),2 DUP(20H)),0FFH
DB 10 DUP(2 DUP(20H),2 DUP(0DBH)),0FFH
DB 10 DUP(2 DUP(0DBH),2 DUP(20H)),0FFH
DB 10 DUP(2 DUP(20H),2 DUP(0DBH)),0FFH
DB 00
；白色琴键坐标
ST_LX DW 50,61,72,83,94,105,116
ST_MX DW 127,138,149,160,171,182,193
ST_HX DW 204,215,226,237,248,259,270
ST_Y DW 50
ED_LX DW 60,71,82,93,104,115,126
ED_MX DW 137,148,159,170,181,192,203
ED_HX DW 214,225,236,247,258,269,280
ED_Y DW 90
；黑色琴键坐标
BT_X DW 57,68,90,101,112
DW 134,145,167,178,189
DW 211,222,244,254,265
BT_Y DW 50
BD_X DW 64,75,97,108,119
DW 141,152,174,185,196
DW 218,229,251,262,273
BD_Y DW 70
；音乐频率值
LOWD DW 131
LOWDD DW 147,165,175,196,220,247
MID DW 262
MIDD DW 294,330,349,392,440,494
HGH DW 523
HGHD DW 587,659,797,783,879,987,1046
KEYFLAG DB 1 ；标记低（0）、中（1）、高（2）音键
KEYNUM DW 1 ；存储1~7
DELAY_TIME DW 7000 ；延时
SONG DW 100 ；保存所选的自动演奏的曲目
TUNE DW 1 ；标记c调或d调
AUDIO DW 1 ；标记低（1）、中（2）、高音（3）
；自动演奏的歌曲频率和延时
MUS_FREQ1 DW 440,392,330,392,523,440,392,440
DW 330,392,440,392,330,262,220,392
DW 330,2 DUP(294),330,2 DUP(392),440,330
DW 294,262,392,330,294,262,220,262,196
DW -1
MUS_TIME1 DW 37,12,3 DUP(25),2 DUP(12),50
DW 25,2 DUP(12 ),2 DUP(25),4 DUP(12 ),50
DW 37 ,12 ,25,2 DUP(12 ),2 DUP(25),50
DW 37 ,5 DUP(12 ),100
MUS_FREQ2 DW 392,523,392,330,2 DUP(262,330,392),2 DUP(523)
DW 349,3 DUP(440),330,3 DUP(392),294,349,330,294,262
DW 392,523,392,330,2 DUP(262,330,392),2 DUP(523)
DW 349,3 DUP(440),330,3 DUP(392),294,349,330,294,262
DW 392,3 DUP(523),494,587,392,392,3 DUP(587),523,659,392
DW 3 DUP(523),330,3 DUP(392),294,349,330,294,262
DW -1
MUS_TIME2 DW 12 ,3 DUP(25,2 DUP(12 )),2 DUP(25)
DW 2 DUP(19,6,2 DUP(12 )),4 DUP(12 )
DW 25,12 ,3 DUP(25,2 DUP(12 )),2 DUP(25)
DW 2 DUP(19,6,2 DUP(12 )),5 DUP(12 )
DW 2 DUP(19,6,4 DUP(12 ),25)
DW 25,2 DUP(12 ),19,6,6 DUP(12 ),25
MUS_FREQ3 DW 262,262,294,330,330,349,392,440,392,330
DW 392,349,330,294,349,330,294,262
DW 262,262,294,330,330,349,392,440,392,330
DW 392,349,330,294,330,294,262,196
DW 392,349,330,294,196,196,349,330,294,262
DW 392,349,330,294,196,196,349,330,294,262
DW 262,262,294,330,330,349,392,440,392,330
DW 392,349,330,294,330,294,262
DW -1
MUS_TIME3 DW 3 DUP(25,2 DUP(12)),50
DW 2 DUP(25,2 DUP(12),50)
DW 3 DUP(25,2 DUP(12)),50
DW 2 DUP(25,2 DUP(12)),2 DUP (50)
DW 3 DUP(25,2 DUP(12)),50
DW 3 DUP(25,2 DUP(12)),50
DW 3 DUP(25,2 DUP(12)),50
DW 2 DUP(25,2 DUP(12)),50
MUS_FREQ4 DW 262,262,294,330,330,294,262,262,220,196
DW 262,294,330,294,262,294
DW 262,294,330,330,294,294,262,220,220,294,262,262,220,196
DW 196,220,220,262,262,294,294,262,220
DW 294,330,294,262,262,294,262,220,196,220
DW 196,220,262,294,330,392,294,330,262,294,262,220
DW 220,294,247,220,196,196
DW 4 DUP(392),330,392,440,440,392,330
DW 5 DUP(440),392,392,330,294
DW 440,392,440,392,330,294,330,294,262,220
DW 4 DUP(294),262,220,196
DW 2 DUP(440,392),2 DUP(330,294),262,220
DW 3 DUP(294),262,220,392
DW -1
MUS_TIME4 DW 3 DUP(20,10,10),50
DW 20,10,20,10,10,80
DW 20,10,20,10,10,3 DUP(20,10),20,20,80
DW 20,10,10,20,20,20,10,10,40
DW 20,10,20,20,10,5,5,10,10,40
DW 20,10,2 DUP(20,10,10),10,5,5,20
DW 20,20,20,10,10,80
DW 10,20,10,20,10,10,40,10,10,20
DW 8 DUP(10),80
DW 20,10,10,20,20,4 DUP(10),40
DW 15,5,10,10,20,20,80
DW 20,10,10,20,20,4 DUP(10),40
DW 40,20,20,40,40,100
MUS_FREQ5 DW 330,392,440,330,392,294
DW 330,392,440,523,440,392,220,262,330,294
DW 294,330,392,294,330,294,220,220
DW 220,262,294,330,294,247,220,262,196
DW 294,330,294,247,220,196,262
DW 523,523,440,523,440,523,440,392
DW 392,330,440,392,262,294,262,292,330
DW 330,330,294,330
DW 523,523,494,440
DW 330,330,294,330,523,494,440,330,392
DW -1
MUS_TIME5 DW 2 DUP(12,12,75),3 DUP(12),25,12,25,6,6,12,75 ；#1,2
DW 12,12,75,4 DUP(12),75,12,12,37,5 DUP(12),75
DW 37,12,12,12,12,12,50
DW 12,12,12,50,12,12,12,75
DW 12,12,37,12,25,6,6,12,50,12,12,12,50,12,12,12,75
DW 12,12,37,12,12,12,12,12,75
DATA ENDS
〈未完〉
