Fake Security Camera - Single MC4000?

[Inari]

How would you code a single MC4000 to beat the first level if you could connect it to both pins?

[furrykef]

Since the two signals don't have the same period, I doubt it can even be done.

[Inari]

Originally posted by furrykef:

Since the two signals don't have the same period, I doubt it can even be done.

Yeah, I thought it might be easy but then realised it is not xD

[SL7205]

I believe both of the MC4000 are on seperate boards, so that's impossible, not sure if bridge can goes across boards or not but technically since connecting one trace to 2 I/O pins will throw an error "connected to self" I doubt that's possible.

[Inari]

Originally posted by lsirawit24:

I believe both of the MC4000 are on seperate boards, so that's impossible, not sure if bridge can goes across boards or not but technically since connecting one trace to 2 I/O pins will throw an error "connected to self" I doubt that's possible.

Hence "if you could connect" :P

[Zelgadis]

The top signal has a period of 12 and the bottom signal a period of 8, so at 24 cycles they are in the same phase as at 0 cycles. Using a single MC4000 you wouldn't have enough instructions to work with, but maybe it would fit in a single MC6000, or a single MC4000 + a ROM.

[Inari]

Originally posted by Zelgadis:

The top signal has a period of 12 and the bottom signal a period of 8, so at 24 cycles they are in the same phase as at 0 cycles. Using a single MC4000 you wouldn't have enough instructions to work with, but maybe it would fit in a single MC6000, or a single MC4000 + a ROM.

Yeah but not enough room to fit a MC 6000. Could fit a ROM though

[Inari]

Would be pretty hard even with that though ^^

[Inari]

http://akari.in/pinky_bCrHS Mwahahahaha!

Thanks to the assistance of Zelgadis I managed to do it with ROM+MC4000 \o/

I guess that one will be removed though XD Oh well. Wanted to test if it would work, and it does. I already reported the bug anyway~

[Inari]

The solution, for the curious: http://akari.in/pinky_pMGPc

Comments:

ROM Storage:
Basically it is formatted as commands of: ASN
A - Active pin value (0/1)
S - Sleep time after this command (0-9)
N - Network pin value (0/1)

Since however the memory pointer advances on a read, the values are mixed up, so that for a command they are spread out like (. being numbers from other commands):
A..
..N
.S.

the N part occurs before the S part because we need to read it before sleeping.
There are 13 real entries and one dummy entry of 000 (doesn't sleep so doesn't matter)

The entry data non-shifted is (formatted ANS):

Pin-Active (A)	Pin-Network (N)	Sleep
0		0		4
0		1		2
1		0		1
1		1		1
1		0		4
0		1		2
0		0		1
0		1		1
0		0		2
1		0		2
1		1		2
1		0		1
1		1		1
0		0		0

So the first command is 040 because A is 0, S is 4, and N is 0; formatted ASN -> 040
Spread out into in our format that is
0..
..0
.4.

So using that spreading pattern for the whole table yields the ROM entries:
0		4		0
0		2		0
1		4		1
0		2		1
0		2		1
1		2		0
1		1		0
0		1		0
1		1		1
1		1		1
0		1		1
0		1		0
1		2		0
1		0		0



  tlt x1 100 # Our number is only 100 or above if the first digit is 1
             # hence we can use this to check what to set the Active-Pin to.
             # Note that this caused the memory pointer to move on to the second ROM
             # entry but since we spread out our numbers as we did, we can read the 
             # N-digit from the second entry, and then finally the S-digit from the
             # third entry.
- mov 100 p0 # Set Active-out to 100 or 0 depending on the A-digit
+ mov 0 p0

  mov 0 acc  # Clear acc for the next step
  dst 2 x1   # Read x1, causing the memory pointer to move on. Set the the left-most
             # digit of acc to the result.
             # A peculiarity of dst causes the to set the left-most digit of acc to
             # the right-most digit of the read value, so dst 2 104 would set the 
             # left-most digit of acc to 4. 
             # In our cases, that is why the N is at the end of the command, 
             # it sets acc to either 000 or 100 depending on if N is 0 or 1.

  mov acc p1 # Now just set the Network-pin/out to our acc value
  mov x1 acc # Read the next command, which contains the S-digit
  dgt 1      # Just get the S-digit
  slp acc    # Sleep for the amount of time specified

[PsyBlade]

and the single mc6000 solution is:

  slp 4
  gen p1 2 0
  mov 100 p0
  slp 1
  gen p1 1 4
  mov 0 p0
  gen p1 2 1
  gen p1 1 2
  mov 100 p0
  slp 2
  gen p1 2 1
  gen p1 1 0
  mov 0 p0

[Inari]

Originally posted by PsyBlade:

and the single mc6000 solution is:

  slp 4
  gen p1 2 0
  mov 100 p0
  slp 1
  gen p1 1 4
  mov 0 p0
  gen p1 2 1
  gen p1 1 2
  mov 100 p0
  slp 2
  gen p1 2 1
  gen p1 1 0
  mov 0 p0

Sadly a MC6000 doesn't fit though :D

[LePourpre]

Originally posted by Inari:

http://akari.in/pinky_bCrHS Mwahahahaha!

Thanks to the assistance of Zelgadis I managed to do it with ROM+MC4000 \o/

I guess that one will be removed though XD Oh well. Wanted to test if it would work, and it does. I already reported the bug anyway~

This explain your 5Y that is trolling me in my leaderboard ^^

[Inari]

Originally posted by LePourpre:

Originally posted by Inari:

http://akari.in/pinky_bCrHS Mwahahahaha!

Thanks to the assistance of Zelgadis I managed to do it with ROM+MC4000 \o/

I guess that one will be removed though XD Oh well. Wanted to test if it would work, and it does. I already reported the bug anyway~

This explain your 5Y that is trolling me in my leaderboard ^^

Hm? I posted an explanation xD