📄 check_battery.asm
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;/* LVI status check routine */
;/* V0.1 17 July, 2002 Jeff Burgess */
;/* Called with: jsr SEND_BYTE */
;/* Returns: STATUS[7,6] containing the data */
;/* from LVISR[7,5] respectively. */
;/* (c) 2002 Motorola */
Check_battery:
psha
lda LVISR
sta T3
brclr LOWV,T3,Chk_dead
bset 6,STATUS
Chk_dead:
brclr LVIOUT,T3,Not_dead
bset LVIOUT,STATUS
Not_dead:
pula
rts
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