📄 eeprom.s
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; EEPROM WRITE ROUTINES
; Copyright (c) 2008 by COSMIC Software
; - eeprom address in X
; - value in A (char) or on stack (int)
;
xdef d_eewrc, d_eewrw
include "eeprom.i"
.dcall "3,2,d_eewrw"
.dcall "3,0,d_eewrc"
;
; program a word
;
d_eewrw:
ld a,(5,sp) ; LSB
ld (1,x),a ; store
wait:
btjt IAPSR,#EOP,wait ; wait for completion
ld a,(4,sp) ; MSB
;
; program one byte
;
d_eewrc:
ld (x),a ; store value
wai2:
btjt IAPSR,#EOP,wai2 ; wait for completion
retf ; and return
;
end
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