196s1.asm

来自「上课老师给的8086仿真器」· 汇编 代码 · 共 65 行

$INCLUDE(8096.INC)
CSEG AT 2080H
	LD 18H,#00E0H
	DI
	LCALL DELAY
	CLRB INT_PENDING
	ORB INT_MASK,#01H
	LDB IOC1,#04H
	LD 1AH,#T1INT
	LD 1EH,#2000H
	ST 1AH,[1EH]
	LDB 24H,#05H
	LDB 26H,#00H
	LDB 30H,#7EH
	STB R0,[30H]
	LDB 30H,#79H
	LDB 1BH,#10H
	LDB 1CH,#05H
LOOP1:	STB 1BH,[30H]+
	DJNZ 1CH,LOOP1
	EI
LOOP2:	LCALL DISP
	SJMP LOOP2
T1INT:	DI
	DJNZ 24H,T1INT1
	LDB 24H,#05H
	CMPB 26H,#0FH
	JE T1INT2
	INCB 26H
T1INT0: LDB 30H,#7EH
	STB 26H,[30H]
T1INT1: EI
	RET
T1INT2: LDB 26H,#00H
	SJMP T1INT0

DISP:	LD 30H,#79H
	LDB 1EH,#20H
	LDB 29H,#06H
DISP1:	LD 20H,#0FF22H
	LD 22H,#0FF21H
	CLRB 1BH
	LDB 1AH,[30H]
	LD 1CH,#DATA0
	ADD 1CH,1AH
	LDB 1AH,[1CH]
	STB 1EH,[22H]
	STB 1AH,[20H]
	INCB 30H
	SHRB 1EH,#01H
	DJNZ 29H,DISP1
	LDB 1AH,#0FFH
	LD 1EH,#0FF22H
	STB 1AH,[1EH]
	RET
DELAY:	PUSH 1AH
	LD 1AH,#0F000H
DELAY1: DEC 1AH
	JNE DELAY1
	POP 1AH
	RET
DATA0:	DCB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H
	DCB 88H,83H,0C6H,0A1H,86H,8EH,0FFH,0CH,89H,0DEH
	END