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📄 eeprom.asm

📁 calculator code ,use toshibaor nec LSI
💻 ASM
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S_TLGT		equ	0x07		;TL G+
S_STAPL		equ	0x07
S_ST		equ	0x08		;' S'
S_MUL		equ	0x09		;' X'
S_DIV		equ	0x0a		;' '+waru
S_EQU		equ	0x0b		;' ='
S_AST		equ	0x0c		;' *'
S_AVR		equ	0x0c		;' *'
S_CLR		equ	0x0d		;'c '
S_MTL		equ	0x0e		;'MT'
S_MST		equ	0x0f		;'MS'
S_MPL		equ	0x10		;'M+'
S_MMI		equ	0x11		;'M-'
S_M2TL		equ	0x12		;'MIIT'
S_M2ST		equ	0x13		;'MIIS'
S_M2PL		equ	0x14		;'MII+'
S_M2MI		equ	0x15		;'MII-'
S_PER_K		equ	0x16		;' %'  for function key(in box)
S_PRDS		equ	0x17		;'-%'
S_PRAD		equ	0x18		;'+%'
S_DLTA_K	equ	0x19		;delta+' ' for function key(in box)
S_PRDL		equ	0x1a		;delta+'%'
S_DLAS		equ	0x1b		;delta+'*'
S_PRMU		equ	0x1c		;' %'
S_MKUP		equ	0x1d		;'MU'
;S_RVS		equ	0x1e		;' '+up/down allow
S_EUAS		equ	0x1e		;'Euro *'	V3.14

S_MTH		equ	0x1f		;M	V3.13
S_ROOT		equ	0x20		;'R '
S_TAX		equ	0x21		;'TX%'
;S_PRN		equ	0x22		;' S'
S_PAY		equ	0x22		;P	V3.13
S_EUR		equ	0x23		;'K '(fcR)
;S_EUM		equ	0x24		;'K-'
S_EUROS		equ	0x24		;'Euro'
S_EUEQ		equ	0x25		;'Euro ='
S_COST		equ	0x26		;'C '
S_SELL		equ	0x27		;' S'
S_MARG		equ	0x28		;'M%'
S_TAXA		equ	0x29		;' T'
S_ICG		equ	0x2a		;'G '
S_G		equ	0x2a
S_ICM		equ	0x2b		;' M '
S_M		equ	0x2b
;V4.02S_LCL		equ	0x2c		;home+waru	1450TE V1.01
;V4.02S_LCAS		equ	0x2d		;home+*		1450TE V1.01
;V4.02S_FC		equ	0x2e		;euro+ x	1450TE V1.01
;V4.02S_FCAS		equ	0x2f		;euro+*		1450TE V1.01
S_DLTA		equ	0x2c;V4.020x30		;delta+' '
S_PER		equ	0x2d;V4.020x31		;delta+' '
;S_EQU_A	equ	;0x32		;
S_CPAY		equ	0x2e;V4.020x32		;P*	V3.13
S_TXPL		equ	0x2f;V4.020x33		;TX+
S_TXMI		equ	0x30;V4.020x34		;TX-
S_TLMGT		equ	0x31;V4.020x35		;TL M+
S_TX1PL		equ	0x32;V4.020x36		;TX1+
S_TX1MI		equ	0x33;V4.020x37		;TX1-
S_TX2PL		equ	0x34;V4.020x38		;TX2+
S_TX2MI		equ	0x35;V4.020x39		;TX2-
S_TAX1		equ	0x36;V4.020x3a		;T1%
S_TAX2		equ	0x37;V4.020x3b		;T2%
;V4.02S_GPM		equ	0x3c		;GPM(MU)
;V4.02S_GS		equ	0x3d
;V4.02S_GT		equ	0x3d		;GT
;V4.02S_GPL		equ	0x3e		;G+  for sigama=% when TA mode	V2.11


S_STAMN		equ	0x55
S_STAS		equ	0x56
S_STASTA	equ	0x57


;V3.00S_GS		equ	0x0f		;G dia	GT subtotal
;V3.00S_GT		equ	0x10		;G *	GT total
;V3.00S_PRM		equ	0x11		;- %	percent minus
;V3.00S_PRP		equ	0x12		;+ %	percent plus
;V3.00S_DLP		equ	0x13		;d +	delta plus(for tax+)
;V3.00S_DLM		equ	0x14		;d -	delta plus(for tax-)
;V3.00S_AM		equ	0x15		;A M	time print
;V3.00S_PM		equ	0x16		;P M	time print
;V3.00S_CST		equ	0xb7;0x17		;C *	cost price
;V3.00S_SEL		equ	0x26;0x18		;S *	selling price
;V3.00S_MAR		equ	0xa1;0x19		;M %	margine %
;V3.00S_MU		equ	0xa2;0x1a		;M _	mark up
;V3.00S_MUD		equ	0x57;0x1b		;d *	delta of mark up
;V3.00S_SET		equ	0x27;0x1d		;_ *	for rate,time set(* only)
;V3.00S_SHD		equ	0x22;0x1c		;_ _	for #/D print(space)
;V3.00S_TLG		equ	0x93;0x0a		;G +	total key with GT position
;==============================================================================
;V3.00S_FED		equ	0x00		;fh+' '
;V3.00S_PWR		equ	0x17		;'C*'
;V3.00S_PLS		equ	0x01		;' +'
;V3.00S_MIN		equ	0x02		;' -'
;V3.00S_SPC		equ	0x00		;'  '
;V3.00S_SHP		equ	0x26		;' <>'
;V3.00S_TL		equ	0x22		;' *'
;V3.00S_TLGT		equ	0x3c		;'*+'
;V3.00S_TLMGT		equ	0x3d		;'*+'
;V3.00S_ST		equ	0x08		;' <>'
;V3.00S_MUL		equ	0x03		;' X'
;V3.00S_DIV		equ	0x04		;' /'
;V3.00S_EQU		equ	0x05		;' ='
;V3.00S_AST		equ	0x22		;' *'
;V3.00S_CLR		equ	0x07		;'c '
;V3.00S_MTL		equ	0x0e		;'M*'
;V3.00S_MST		equ	0x0d		;'M<>'
;V3.00S_MPL		equ	0x0b		;'M+'
;V3.00S_MMI		equ	0x0c		;'M-'
;V3.00S_M2TL		equ	0x10		;'G*'
;V3.00S_STASTA	equ	0x77	;'**' 
;V3.00S_M2ST		equ	0x0f		;'G<>'
;V3.00S_STAS		equ	0x76	;'*S'
;V3.00S_M2PL		equ	0x3e		;'G+'
;V3.00S_STAPL		equ	0x73	;'*+' 
;V3.00S_PLSTA		equ	0x37	;'+*'
;V3.00S_M2MI		equ	0x3f		;'G-'
;V3.00S_STAMN		equ	0x70	;'*-' 
;V3.00S_M2TLV		equ	0x97		;'G*'
;V3.00S_M2STV		equ	0x96		;'G<>'
;V3.00S_M2PLV		equ	0x3e		;'G+'
;V3.00S_M2MIV		equ	0x3f		;'G-'
;V3.00S_PER		equ	0x06		;' %'
;V3.00S_STAPER	equ	0x71		;'*%'
;V3.00S_PRDS		equ	0x01		;'-%'
;V3.00S_PRAD		equ	0x31		;'+%'
;V3.00S_DLTAL		equ	0x82		;delta+' '
;V3.00S_DLTA		equ	0x28		;' "+delta V1.26
;V3.00S_PRDL		equ	0x81		;delta+'%'
;V3.00S_DLAS		equ	0x87		;delta+'*'
;V3.00S_PRMU		equ	0x21		;' %'
;V3.00S_MKUP		equ	0xa2		;'M '
;V3.00S_RVS		equ	0x22		;'  '
;V3.00S_AVR		equ	0x27		;' *'
;V3.00S_ROOT		equ	0x22		;'  '
;V3.00S_TAX		equ	0x12		;'% '
;V3.00S_PRN		equ	0x62		;'<> '
;V3.00S_EUR		equ	0x22		;'  '
;V3.00S_EUEQ		equ	0xc2		;'= '
;V3.00S_COST		equ	0x2b		;' C'
;V3.00S_SELL		equ	0x26		;' <>'
;V3.00S_M		equ	0x2a		;' M'
;V3.00S_MARG		equ	0xa1		;'M%'
;V3.00S_PERMARG	equ	0x1a		;'%M'
;V3.00S_TAXA		equ	0x27		;' *'
;V3.00S_ICG		equ	0x29		;' G'
;V3.00S_ICGV		equ	0x29		;' G'
;V3.00S_ICM		equ	0x2a		;' M'
;V3.00S_ASM		equ	0x7a		;'*M'
;V3.00S_ASC		equ	0x7b		;'*C'
;V3.00S_ASDL		equ	0x78		;'*'+delta
;V3.00S_MIPL		equ	0x03		;'-+'	
;V3.00S_MIMI		equ	0x00		;'--'
;V3.00S_MIST		equ	0x06		;'-S'
;V3.00S_MITL		equ	0x07		;'-T'
;V3.00S_EUROS		equ	0x29		;' euro'
;V3.00S_G		equ	0x9f		;'G '
;V3.00S_GPL		equ	0x93		;'G+'
;V3.00S_GAST		equ	0x97		;'G*'
;==============================================================================
P_SPC	equ	0x20	;for print " "
;-----------------------------------------------------------
;interrupt enable flag set:

EF4		equ	4;(EIRL).4 /INT0
EF5		equ	5;(EIRL).5 INTTC1
EF6		equ	6;(EIRL).6 INT1
EF7		equ	7;(EIRL).7 INTTBT
EF8		equ	0;(EIRH).0 INTTC3
EF9		equ	1;(EIRH).1 INTSIO(High speed SIO interrupt)
EF10		equ	2;(EIRH).2 INTTC4
EF11		equ	3;(EIRH).3 INT3
EF12		equ	4;(EIRH).4 INT4
EF13		equ	5;(EIRH).5 INTTC2
EF14		equ	6;(EIRH).6 /INT5
EF15		equ	7;(EIRH).7 INTADC or INT2
;interrupt request flag set:
IL2		equ	2;(ILL).2 INTSWI 
IL3		equ	3;(ILL).3 INTATRAP
IL4		equ	4;(ILL).4 /INT0
IL5		equ	5;(ILL).5 INTTC1
IL6		equ	6;(ILL).6 INT1
IL7		equ	7;(ILL).7 INTTB
IL8		equ	0;(ILH).0 INTTC3
IL9		equ	1;(ILH).1 INTSIO
IL10		equ	2;(ILH).2 INTTC4
IL11		equ	3;(ILH).3 INT3
IL12		equ	4;(ILH).4 INT4
IL13		equ	5;(ILH).5 INTTC2
IL14		equ	6;(ILH).6 /INT5
IL15		equ	7;(ILH).7 INTADC or /INT2
;	DBR_LCD_RATE		equ	(0x0f33<<4)+5	;LCD DBR matrix point for "RATE"
;	DBR_LCD1235_RATE	equ	(0x0f33<<4)+3	;LCD DBR matrix point for "RATE"
;	DBR_LCD1297_RATE	equ	(0x0f33<<4)+4	;LCD DBR matrix point for "RATE"
;	DBR_LCD120_RATE		equ	(0x0f33<<4)+4	;LCD DBR matrix point for "RATE"
;	DBR_LCD1297_GT		equ	(0x0f32<<4)+2	;LCD DBR matrix point for "GT"
;	;LCD_PRN		equ	(0x0f31<<4)+3	;LCD DBR matrix point for "PRINT"
;	;LCD_FIN		equ	(0x0f30<<4)+3	;LCD DEB matrix point for "FIN"

AUTOOFFTIME	equ	31250;1500
	public	ee_to_euro1,ee_to_euro2,ee_to_tax,ee_to_ten,ee_to_wkreg,eeprom_check
	public	w2_to_ee,w2_to_eetx,w2_to_eetx2
	public	country_to_ee,ee_country_read,rate_init_check,ee_rate_init
	public	ee_to_tax2 ;V2.05,euro_country_set
	public	euro_fix_rate_tbl
	extern	init_keybuf,wait_100ms,key_get	;V2.04
	$list
;================================================
;P0DR port
EP_CS	equ	7	;P07
EP_SK	equ	6	;P06
EP_DIO	equ	5	;P05

RATE_L		equ	4	;constant
EE_TEST1	equ	0x00
EE_COUNTRY	equ	0x01	;save country code
EE_EU1		equ	0x02	
EE_EU2		equ	EE_EU1+RATE_L	
EE_EU3		equ	EE_EU2+RATE_L	
EE_EU4		equ	EE_EU3+RATE_L	
EE_EU5		equ	EE_EU4+RATE_L
EE_EU6		equ	EE_EU5+RATE_L
EE_EU7		equ	EE_EU6+RATE_L
EE_EU8		equ	EE_EU7+RATE_L
EE_EU9		equ	EE_EU8+RATE_L
EE_EU10		equ	EE_EU9+RATE_L
EE_EU11		equ	EE_EU10+RATE_L
EE_EU12		equ	EE_EU11+RATE_L
EE_EU13		equ	EE_EU12+RATE_L
EE_TAX		equ	EE_EU13+RATE_L
EE_TAX2		equ	EE_TAX+RATE_L
EE_TEST2	equ	EE_TAX2+RATE_L
;================================================
ROM	section code
;=========================================================================
;-----------------------------------------------------------------
;==========================================================================
;-----------------------------
;-----------------------------
;-----------------------------
;-----------------------------
;-----------------------------
;-----------------------------
;-----------------------------
;-----------------------------
EETIM	equ	30	;v1.20
;========================================================================
;EEPROM 93LC46 1024bit (128 Bytes)
;request: Tcs > 250ns;  Tsk < 1MHz;  Tdio > 100ns
;EEPROM instruction code
;READ			10AAAAAA
;Write Enable		0011xxxx
;WRITE			01AAAAAA
;Write All Register	0001xxxx
;Write Disable		0000xxxx
;ERASE			11AAAAAA
;Erase All Register	0010xxxx
;data flow:------------------------------------------
;write: 16bit data in bc--->a--->EEPROM
;read:  16bit data in EEPTROM--->a--->bc
;used general register: w,a,bc,de
;=========================================================================
ee_enable:	;instruction 0011xxxx send to EEPROM
	set	(FLG_2).4
		set	(P0CR).EP_DIO	;as output port
		clr	(P0DR).EP_DIO	;
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
	set	(P0DR).EP_CS
		call	ee_wait_10_nop	;V1.34
		call	high_out	;outpu high level from port EP_DIO; start bit is high
		ld	a,0y00110000	;instructin Write Enable
		call	data_out
	clr	(P0DR).EP_CS
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
		set	(P0CR).EP_DIO	;as output port
		clr	(P0DR).EP_DIO	;
		nop
	clr	(FLG_2).4
		ret
;=====================================================
ee_disable:	;instruction 0000xxxx send to EEPROM
	set	(FLG_2).4
		set	(P0CR).EP_DIO	;as output port
		clr	(P0DR).EP_DIO	;
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
	set	(P0DR).EP_CS
		call	ee_wait_10_nop	;V1.34
		call	high_out	
		ld	a,0y00000000
		call	data_out
	clr	(P0DR).EP_CS
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
		set	(P0CR).EP_DIO	;as output port
		clr	(P0DR).EP_DIO	;
		nop
	clr	(FLG_2).4
		ret
;=====================================================
high_out:	;output high level from port EP_DIO	
	set	(P0DR).EP_DIO
		call	ee_wait_10_nop	;V1.34
	set	(P0DR).EP_SK
		call	ee_wait_10_nop	;V1.34
		nop			;SK	_HHHHHH____
		nop			;DIO	___HHH_____
	clr	(P0DR).EP_SK
		nop			;
		nop
		ret			;
;=====================================================
low_out:	;output low level from port EP_DIO
	clr	(P0DR).EP_DIO
		call	ee_wait_10_nop	;V1.34
		nop			;CS	HHHHHHHHHHH
		nop			;SK	_HHHHHH____
	set	(P0DR).EP_SK
		call	ee_wait_10_nop	;V1.34
	clr	(P0DR).EP_SK
		nop			;
		nop
		ret			;
;=====================================================
data_out:	;8bit data in register "a" sent to EEPROM bit by bit
		ld	w,7		;
data_out0:				;
		shlc	a		;CS	HHHHHHHHHHHHHHHHHHHHHHHH
		j	cc,data_out2	;SK	_HHH__HHH__HHH_//_HHH_
		call	high_out	;DO	__XXXXXXXXXXXXX//XXXX__
		jp	data_out4	;
data_out2:				;
		call	low_out		;
data_out4:				;
		dec	w		;
		jr	f,data_out0	;
		ret			;
;=====================================================
data_in:	;read 8bit data from EEPRM and save into register "a" bit by bit
		ld	w,7		;
data_in0:				;
	set	(P0DR).EP_SK
		nop
		nop
		nop
		clr	(P0CR).EP_DIO	;P17 as inupt port
		set	(P0DR).EP_DIO
		call	ee_wait_10_nop	;V1.34
		test	(P0DR).EP_DIO
		j	t,data_in1	;judge the port EP_DIO is high or low.
		set	cf		;is high
		jp	data_in2	;
data_in1:				;
		clr	cf		;is low
data_in2:				;
		rolc	a		;16bit data read into register wa
	clr	(P0DR).EP_SK
		call	ee_wait_10_nop	;V1.34
		nop			;SK	_HHH__HHH__HHH_//_HHH_
		nop			;DO	__XXXXXXXXXXXXX//XXXX__-->C-->register a
		dec	w		;
		jr	f,data_in0	;
		ret			;
;=====================================================
ee_write:	;the data in register b(high 8bit)c(low 8bit)-->EEPROM
		;                        xxxxxxxx xxxxxxxx
	set	(FLG_2).4
		ld	w,3
ee_write_x:
		push	w	;V1.05
		set	(P0CR).EP_DIO	;as output port
		clr	(P0DR).EP_DIO	;
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
		ld	de,bc		;backup bc in de
	set	(P0DR).EP_CS
		nop
		nop
		nop
		nop
		nop
		call	high_out	;start bit is high level
		ld	a,(EP_ADDR)	;EPROM address-->a
		and	a,0y00111111	;EEPROM address only from 00-->63
		or	a,0y01000000	;write instruction is 01xxxxxx
		call	data_out	;instruction for write and address send to EEPROM
		ld	a,b		;the data in c-->a
		call	data_out	;a-->EEPROM
		ld	a,c		;the data in b-->a
		call	data_out	;a-->EEPROM
	clr	(P0DR).EP_DIO
		call	ee_wait_10_nop	;V1.34
		nop		;V1.34
		nop		;V1.34
		nop		;V1.34
	clr	(P0DR).EP_CS
		call	ee_wait_10_nop	;V1.34
		clr	(P0CR).EP_DIO	;P17 as inupt port
		set	(P0DR).EP_DIO
		call	ee_wait_10_nop	;V1.34
	set	(P0DR).EP_CS
		call	ee_wait_10_nop	;V1.34
		ld	(EP_TIM),EETIM	;set time for waiting STOP signal. dec EP_TIM in timer interrupt
ee_write0:
		clr	(P0CR).EP_DIO	;P17 as inupt port
		set	(P0DR).EP_DIO
		nop
		test	(P0DR).EP_DIO
		j	f,ee_write1		;STOP flag received? yes-->
		ld	a,(EP_TIM)		;not receive STOP flag
		j	ne,ee_write0
	ld	wa,EP_FAIL

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