Data commit

Task/Gray-code/8051-Assembly/gray-code.8051

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+.equ	cin, 0x0032
+.equ	cout, 0x0030
+.equ	phex, 0x0034
+.equ	phex16, 0x0036
+.equ	nl, 0x0048
+
+.org	0x2000
+
+main:
+	mov	r7, #0
+	
+next:
+	mov	a, r7
+	lcall	phex
+	
+	mov	a, #' '
+	lcall	cout
+	
+	mov	a, r7
+	acall	genc
+	lcall	phex
+	
+	mov	r6, a
+	
+	mov	a, #' '
+	lcall	cout
+	
+	mov	a, r6
+	acall	gdec
+	lcall	phex
+	
+	lcall	nl
+	
+	inc	r7
+	cjne	r7, #0, next
+	
+	lcall	cin
+	
+	ljmp	0x0000
+	
+;--------
+genc:
+	mov	r0, a
+	clr	c
+	rrc	a
+	xrl	a, r0
+	ret
+;--------
+
+;--------
+gdec:
+	mov	r0, a
+gdec_shift_xor:
+	clr	c
+	rrc	a
+	jz	gdec_out
+	xch	a, r0
+	xrl	a, r0
+	xch	a, r0
+	sjmp	gdec_shift_xor
+gdec_out:
+	xch	a, r0
+	ret
+;--------