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diff code_part1/OSTC_code_asm_part1/start.asm @ 362:64da813d4726 64kByte Logbook

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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
author Heinrichsweikamp
date Wed, 08 Jun 2011 19:47:18 +0200
parents 91352bb698cf
children 93a64a19728e
line wrap: on
line diff
--- a/code_part1/OSTC_code_asm_part1/start.asm	Wed Jun 08 01:37:14 2011 +0200
+++ b/code_part1/OSTC_code_asm_part1/start.asm	Wed Jun 08 19:47:18 2011 +0200
@@ -40,6 +40,7 @@
 start3:
 	clrf	STKPTR					; Clear Stackpointer
 	lfsr	FSR0,year+1				; Clear rambank 1-9, do not delete RTC registers
+delete RTC registers
 clear_rambank:
 	clrf	POSTINC0
 	movlw	0x0A
@@ -224,6 +225,16 @@
 	cpfseq	EEDATA
 	bcf		debug_mode				; clear flag if <> 1
 
+; Check if logbook has been converted already (Internal EEPROM 0x100=0xAA)
+	movlw	LOW		0x100
+	movwf	EEADR
+	movlw	HIGH 	0x100
+	movwf	EEADRH
+	call	read_eeprom				; read byte
+	movlw	0xAA
+	cpfseq	EEDATA					; is 0xAA already?
+	call	logbook_convert_64k		; No, convert now (And write 0xAA to internal EEPROM 0x100)
+
 	goto	surfloop				; Jump to Surfaceloop!