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Programming:Unlocking ASIC
53 bytes added
,
18 March
/* In Z80 Assembler */
<pre>
UnlockAsic
di
ld bc,#BCFF
out (c),c
out (c),c
ld a,h:rlca:ld h,l:ld l,a
srl
c:res 3,
c
xor c:
and #88
or
:xor
c
ld c,a
cp #4D
jr nz,.loop
ld a,#CD
; a=#CD for unlock, another value for lock
out (c),a : out (c),a
ei
ret
</pre>
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