【正文】 。；讀狀態(tài)字地址（E2） DWADD2 EQU 0f840H 。；讀顯示數(shù)據(jù)地址（E1） CWADD2 EQU 0f800H 。；讀狀態(tài)字地址（E1） DWADD1 EQU 0fa40H 。；數(shù)據(jù)寄存器 CWADD1 EQU 0fa00H 。；計數(shù)器 COM EQU 20H 。；頁地址寄存器 CODE1 EQU 32H 。；讀顯示數(shù)據(jù)子程序（E2） PUSH DPH MOV DPTR,CRADD2PR51: MOVX A,DPTR JB ,PR21 MOV DPTR,DRADD2 MOVX A,DPTR MOV DAT,A POP DPH POP DPL RET end拓展：實現(xiàn)上下滾屏功能 PD1 EQU 60 。；寫指令代碼子程序（E2） PUSH DPH MOV DPTR,CRADD2PR31: MOVX A,DPTR JB ,PR31 MOV DPTR,CWADD2 MOV A,COM MOVX DPTR,A POP DPH POP DPL RETPR4: PUSH DPL 。；寫顯示數(shù)據(jù)子程序（E1） PUSH DPH MOV DPTR,CRADD1PR11: MOVX A,DPTR JB ,PR11 MOV DPTR,DWADD1 MOV A,DAT MOVX DPTR,A POP DPH POP DPL RETPR2: PUSH DPL 。；RAM區(qū)清零循環(huán) RETPR0: PUSH DPL 。；頁內(nèi)字節(jié)清零循環(huán) INC R4 。；一頁清80個字節(jié)CLEAD2: MOV DAT,00H 。；頁面地址設(shè)置 LCALL PR0 LCALL PR3 MOV COM,00H 。；取頁地址值 ORL A,0B8H 。；開顯示設(shè)置 LCALL PR0 LCALL PR3 RETCLEAR: MOV R4,00H 。；正向排序設(shè)置 LCALL PR0 LCALL PR3 MOV COM,0C0H 。；關(guān)閉休閑狀態(tài) LCALL PR0 LCALL PR3 MOV COM,0A9H 。；延時程序1SAG3: MOV TMOD,10H MOV TH1,3CH MOV TL1,0B0H SETB TR1AG4: JBC TF1,AG5 SJMP AG4AG5: INC R0 CJNE R0,0AH,AG3 RETINT: MOV COM,0E2H 。；顯示“文” db 80h, 80h, 40h, 40h, 20h, 11h, 0Ah, 04h db 0Ah, 11h, 10h, 20h, 40h,0C0h, 40h, 00h db 00h,0F0h, 00h,0FFh, 00h,0F0h, 90h, 88h db 4Fh, 54h,0A4h, 54h, 4Ch,0C4h, 40h, 00h 。；顯示“” db 80h, 80h, 80h, 80h, 80h db 00h, 00h, 00h, 00h, 00h db 00h, 00h, 00h, 00h, 00h db 00h, 00h, 00h, 00h, 00h db 00h, 00h db 00h, 40h, 20h,0D0h, 48h, 4Fh, 48h, 48h db 0E8h, 48h, 08h,0FCh, 08h, 00h, 00h, 00h 。；顯示“分” db 01h, 00h, 80h, 40h, 20h, 1Fh, 00h, 40h db 80h, 40h, 3Fh, 00h, 00h, 01h, 00h, 00h db 10h, 10h,0D0h,0FFh, 90h, 10h, 88h, 48h db 0A8h, 09h, 0Ah, 08h,0A8h, 4Ch,0C8h, 00h 。；顯示“武” db 20h, 60h, 3Fh, 20h, 20h, 1Fh, 11h, 11h db 10h, 03h, 1Ch, 20h, 40h, 80h,0E0h, 00h db 00h, 00h, 00h, 7Fh, 49h, 49h, 49h, 49h db 49h, 49h, 49h, 7Fh, 80h, 00h, 00h, 00h 。；顯示“大” db 00h, 40h, 40h, 20h, 10h, 0Ch, 03h, 00h db 01h, 06h, 08h, 10h, 20h, 60h, 20h, 00h db 40h, 30h, 11h, 96h, 90h, 90h, 91h, 96h db 90h, 90h, 98h, 14h, 13h, 50h, 30h, 00h 。；顯示“科” db 10h, 08h, 06h, 01h,0FFh, 00h, 01h, 02h db 02h, 02h, 02h,0FFh, 01h, 01h, 01h, 00h db 10h, 10h, 10h,0FFh, 10h, 10h, 88h, 88h db 88h,0FFh, 88h, 88h, 8Ch, 08h, 00h, 00h 。；顯示“華” db 04h, 04h, 04h, 04h, 05h, 04h, 04h,0FFh db 04h, 04h, 05h, 05h, 05h, 05h, 04h, 00h db 00h,0F8h, 08h, 08h, 08h, 08h, 08h,0FFh db 08h, 08h, 08h, 08h, 08h,0FCh, 08h, 00h 。；間接寄存器設(shè)置為16 LJMP CCW_1 。；判完成標(biāo)志D7位，“1”則完成退出 INC A 。；當(dāng)頁循環(huán) MOV A,PAGE1 。；在區(qū)域E1則修改成區(qū)域E2 MOV PAGE1,A MOV COM,00H 。；超出則判是否在區(qū)域E2 JB ,CCW_8 。；判列地址是否超出區(qū)域范圍 CJNE A,PD1,CCW_7CCW_7: JC CCW_8 。；間址寄存器加1 INC COLUMN 。；區(qū)域E2 LJMP CCW_6CCW_5: LCALL PR1 。；取漢字字模數(shù)據(jù) MOV DAT,A 。；區(qū)域E1CCW_4: MOV A,CODE1 。；判區(qū)域標(biāo)志以確定設(shè)置哪個控制器 JNB ,CCW_3 LCALL PR3 。；“0”為E1，“1”為E2CCW_2: MOV COM,COLUMN 。；≥0為右半屏顯示區(qū)域（E2） MOV A,PAGE1 SETB 。；列地址模塊參數(shù) JC CCW_2 。；取列地址值 MOV A,COLUMN 。；“或” 頁地址設(shè)置代碼 MOV COM,A 。；計數(shù)器設(shè)定為16 MOV A,PAGE1 。；列地址入棧 MOV CODE1,00H 。；字符字模塊首地址=字模庫首地址+代碼X32 MOV DPL,A MOV A,B ADDC A,DPH MOV DPH,A PUSH COLUMN 。；字模塊寬度為32個字節(jié) MUL AB 。；確定字符字模塊首地址 MOV A,CODE1 。；清屏延時 LJMP AG1 。；延時顯示 LCALL CLEAR 。；顯示“文” MOV PAGE1,0H MOV COLUMN,76 MOV CODE1,0dH LCALL CCW_PR 。；顯示“” MOV PAGE1,0H MOV COLUMN,2dH MOV CODE1,0bH LCALL CCW_PR 。；顯示“分” MOV PAGE1,00H MOV COLUMN,0fH MOV CODE1,09H LCALL CCW_PR 。；列地址寄存器置初值 MOV CODE1,08H 。； MOV PAGE1,00H 。；顯示“武 MOV PAGE1,2H MOV COLUMN,106 MOV CODE1,07H LCALL CCW_PR 。；顯示“大” MOV PAGE1,2H MOV COLUMN,76 MOV CODE1,05H LCALL CCW_PR 。；顯示“科” MOV PAGE1,2H MOV COLUMN,2dH MOV CODE1,03H LCALL CCW_PR 。；顯示“華” MOV PAGE1,02H MOV COLUMN,0fH MOV CODE1,01H LCALL CCW_PR 。；列地址寄存器置初值 MOV CODE1,00H 。； MOV PAGE1,02H 。；調(diào)用初始化子程序 LCALL CLEAR 。；寫顯示數(shù)據(jù)地址（E2） DRADD2 EQU 0f8c0H 。；寫指令代碼地址（E2） CRADD2 EQU 0f880H 。；寫顯示數(shù)據(jù)地址（E1） DRADD1 EQU 0fac0H 。；寫指令代碼地址（E1） CRADD1 EQU 0fa80H 。；指令寄存器 DAT EQU 21H 。；字符代碼寄存器 COUNT EQU 33H 。 ；模塊參數(shù) COLUMN EQU 30H PAGE1 EQU 31H 。 SED1520的指令系統(tǒng)SED1520的13條指令指令名稱控制信號控制代碼A0 R/WD7