MOV TMOD,#20H	 ; parametry serioveho prenosu
			   MOV TH1,#FD
			   MOV SCON,#50H
			   SETB TR1
	READ: CLR RI		   
	MOV R7,SBUF
;-----------------------------------------------;
; testy ;
STISK: CJNE R7,#"p",IF_O
	CLR RI
	jmp PILA
IF_O: CJNE R7,#"o",IF_T
		CLR RI
		jmp OBDELNIK
IF_T: CJNE R7,#"t",IF_S
		CLR RI
		jmp TROJUHELNIK
IF_S: CJNE R7,#"s",IF_IncDel
		CLR RI
		jmp SINUS
IF_IncDel: CJNE R7,#"+", IF_DecDel
		CLR RI
		jmp IncDel
IF_DecDel: CJNE R7,#"-",IF_Else
		CLR RI
		jmp DecDel
IF_Else: jmp READ
;-----------------------------------------------;
; Jednotlive programy
;----------------;
OBDELNIK:
; MOV A,#0
 ;opak:	
; XRL A,#0ffh
; MOV P1,A
; CALL DELAY
;MOV R7,SBUF
;CJNE R7,#"o",STISK
;jmp opak
mov R3,#0h
DOLU:	mov P1,#0h
		call DELAY
		inc R3
		mov A,R3
		cjne A,#0FFh,DOLU
		mov R3,#0h
NAHORU:	mov P1,#0FFh
		call DELAY
		inc R3
		mov A,R3
		cjne A,#0FFh,NAHORU
		MOV R7,SBUF
		CJNE R7,#"o",STISK
		jmp DOLU
;--------------;

PILA: 
inc P1
CALL DELAY
MOV R7,SBUF
CJNE R7,#"p",STISK
jmp PILA
;----------------;
TROJUHELNIK: 
;MOV A, #000h
;nastup:	
;MOV P1, A
; 		inc A
; 		CJNE A, #0FFh, nastup
; 		sestup:	MOV P1, A 
;          dec A
; 	 CJNE A, #000h, sestup
;	 MOV R7,SBUF
;	 CJNE R7,#"t",STISK
;
; 	 jmp nastup
		mov P1,#0h
		call DELAY
INKR:  	inc P1
		inc P1
		call DELAY
		mov A,P1
		cjne A,#0FEh,INKR
DEKR:	dec P1
		dec P1
		call DELAY
		mov A,P1
		cjne A,#00h,DEKR
		MOV R7,SBUF
		CJNE R7,#"t",STISK
		jmp INKR
;jmp TROJUHELNIK
;------------------;
HelpStisk2: jmp STISK
SINUS: 
	MOV DPTR,#TAB
	MOV R0,#0h
	OPAKSIN:
		MOV A, R0
		ANL A,#00011111b
		MOVC A,@A+DPTR
		MOV P1,A
		INC R0
		call DELAY
	MOV R7,SBUF
	CJNE R7,#"s",HelpStisk2
	jmp OPAKSIN
;---;
DELAY:
	MOV A,R6
	MOV R5,A
	DJNZ R5, $
	RET
HelpStisk1: jmp STISK
DecDel: 
CLR	RI
MOV	R7,SBUF
CJNE R7,#"-",HelpStisk1 ; Dalsi programatorska nadhera ... assembler forever
DEC R6
jmp DecDel
;---------------;
HelpIncDel: jmp IncDel	; programatorsky podivne programy z duvodu omezeni delky skoku(127/+127 bitu) ... inu dejepis v praxi
HelpStisk: jmp STISK
IncDel:
CLR RI 
MOV R7,SBUF
CJNE R7,#"+",HelpStisk
INC R6
jmp HelpIncDel
;------------- ;
 TAB:DB 80h, 98h, 0B0h, 0C6h, 0D9h, 0E9h, 0F5h, 0FCh
		DB 0FFh, 0FCh, 0F5h, 0E9h, 0D9h, 0C6h, 0B0h, 98h
		DB 80h, 67h, 4Fh, 39h, 26h, 16h, 0Ah, 03h
		DB 01h, 03h, 0Ah, 16h, 26h, 39h, 4Fh, 67h
end