tc1ser.asm

来自「8051硬核源码（VHDL）」· 汇编 代码 · 共 68 行

reset: 	ljmp start                       
i_ext0: ljmp j_ext0                     
	nop                                     
	nop                                     
	nop                                     
	nop                                     
	nop                                     
i_tim0: ljmp j_tim0              
	nop                                     
	nop                                     
	nop                                     
	nop                                     
	nop                                     
i_ext1: ljmp j_ext1                     
	nop                                     
	nop                                     
	nop                                     
	nop                                     
	nop                                     
i_tim1: ljmp j_tim1              
	nop                                     
	nop                                     
	nop                                     
	nop                                     
	nop                                     
i_siu: 	ljmp j_siu                       

start:	mov 0aah,#00h
	mov 0bah,#00h
	mov 09Dh,#00h
	mov sp, #70h                            
 	MOV A,PCON
	SETB ACC.7
	MOV PCON,A
;	MOV TH1,#0E8h
;	MOV TL1,#0E8h
;	MOV TMOD,#20h
;	MOV TCON,#40h
	MOV SCON,#90h
        SETB IT0
        SETB EX0
	SETB ES
	SETB EA
	MOV SBUF, #0C0h
loop:   mov a, #11h
        sjmp loop
	
j_ext0: mov a, #003h
	reti                     
                                        
j_tim0: mov a, #00Bh
	reti                                    
                                        
j_ext1: reti                     
                                        
j_tim1: mov a, #01Bh
	reti                                    
                                        
j_siu: 	JNB RI, ProofTi
	; xxxx
	CLR RI
	SJMP SerExit
	ProofTi: JNB TI, SerExit
	; xxxx
	CLR TI
	SerExit: RETI
	
	end