单词记忆测试器程序设计(3)

微机原理

CALL SET_POSITION ; 置光标位置

DEC BX

MOV DL,[BX]

CMP DL,20H

JZ LAST1

JMP LAST

LAST1: DEC BX

MOV DL ,[BX]

CMP DL,20H

JZ SHOW

JMP LAST1

NEXT: CALL CLEAR

CALL SET_POSITION

INC BX

MOV DL,[BX]

CMP DL,20H

JZ SHOW

JMP NEXT

KNOW: CALL CLEAR

CALL SET_POSITION

INC CH ;统计记忆单词个数 JMP NL

UNKNOW: CALL CLEAR

CALL SET_POSITION

PUSH BX

UNKNOW1: DEC BX

MOV DL,[BX]

CMP DL,20H

JZ SAVE

JMP UNKNOW1

UNKNOW2: POP BX

INC CL ;统计未记忆单词个数 JMP NL

SAVE: MOV [DI],BX ;记录未记忆单词的偏移地址 ADD DI,2

JMP UNKNOW2

STOP: CALL CLEAR

KS: MOV AH,02 ;调用中断置光标位置 MOV BX,0

MOV DX,0500H

INT 10H