Changes
/* Optimized version */
<br>
= Optimized version versions =
The unlocking sequence can be reconstituted from simple bit operations instead of being stored in memory.
== In Z80 Assembler [[Madram]] version ==
<pre>
UnlockAsic
</pre>
<pre>
di
</pre>
<pre>
def unlock_asicunlock_sequence(): b, c, h, l = 0xBC, 0xFF, 0x90, 0xEA # Initialize registers
port_out(b, c)
port_out(b, 0)
a = c while c != 0x4DTrue: port_out(b, ca) h, l d = a a = l, ((h a << 1) 2 | (h a >> 7)6) & 0xFF # Rotate h and swap h, l c a = ((c >> 1a ^ d) & ~0x7F) ^ d e = a a = (1 a << 3)) 1 | (l & 0x88a >> 7) # Modify c& 0xFF a = a ^ e port_out d = (b, 0xCDd >> 1 | d << 7)& 0xFF port_out a = (b, 0xCD(a ^ d)& 0x88) ^ d if a == c: break
def port_out(port, value):
print(f"Port: {hex(port)}xx Out: {hex(value)}")
</pre>
