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c-poole avatar e-sh4rk avatar notblisy avatar papajefe avatar sleipnir17 avatar

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emeraldace_web's Issues

Potential bug with immediate value decomposer

movs r11, {0x7f8695d6 } ? will result in Arm.InvalidCommand in the output. If the register is changed to r12, things work fine and results in the following set of commands:

k I … o E3B0C3DF MOVS r12, #0x7c000003
m M ? n E2ACC7E1 ADC r12, r12, #0x3840000
4 Q ? n E2ACCBA5 ADC r12, r12, #0x29400
z F ? n E2ACC0EE ADC r12, r12, #0xee
q F ? n E2ACC0E5 ADC r12, r12, #0xe5

If I ask the code generator what box names correspond to these commands but with r11 swapped in place of r12, it turns out there is an invalid character.

I would normally expect that the parser either finds a longer but writeable solution that works for the requested register

PRNG Seed Codes for 6DCC1D29 Don't Match Sleipnir's Output

I was trying to set my PRNG state to a specific seed using the web tool, and wasn't able to confirm the location when doing actual RNG.

So to test the validity of the code generator, I found one of the seeds Sleipnir had already generated codes for:

6DCC1D29
image

His Box code output for that seed was as follows:

  Box 1:  (FM...o♀S?n) [one ...]
  Box 2:  ( ?"FS?n )   [starts with space; righty "; ends with space]
  Box 3:  (?"XD...o  ) [righty "; one ...; ends with two spaces]
  Box 4:  (E5"!n   )   [righty "; ends with three spaces]
  Box 5:  (G/!nh♀!n)
  Box 6:  ( ?" ...Qn ) [starts with space; righty "; one space after "; one ...; ends with space]
  Box 7:  (?" ...?q  ) [righty "; one space after "; one ...; ends with two spaces]
  Box 8:  (EmFlo   )   [lower case L; ends with three spaces]
  Box 9:  (yLRom"Ro)   [righty "]
  Box 10: ( ?"FGEn )   [starts with space; righty "; ends with space]
  Box 11: (?" ...?q  ) [righty "; one space after "; one ...; ends with two spaces]
  Box 12: (E"STn   )   [lefty "; ends with three spaces]
  Box 13: (YN?nFNRo)
  Box 14: (S?n... Rn ) [one ...; one space after ...; ends with space]

Your PRNG Seed code generator outputs the following.

INPUT:

@@ title = "Change PRNG Seed (ENG)"
@@ exit = "CertificateENG"

seed = 0x6DCC1D29

@@

movs r12, 0x3000000            %%  R12=3000000
adc r12,r12, 0x2D80            %%  R12=R12+2D80=3002D80
adc r12,r12, 0x3000            %%  R12=R12+3000=3005D80=PRNG state location
movs r11, { seed }  ?
str r11, [r12]!                %%  Store new seed in PRNG state location

OUTPUT:

F M … o 	E3B0C7C0	MOVS r12, #0x3000000
♀ S ? n 	E2ACCDB6	ADC r12, r12, #0x2d80
F S ? n 	E2ACCDC0	ADC r12, r12, #0x3000
r ” … o 	E3B0B2E6	MOVS r11, #0x6000000e
h ♀ ! n 	E2ABB6DC	ADC r11, r11, #0xdc00000
G / ! n 	E2ABBAC1	ADC r11, r11, #0xc1000
W D ! n 	E2ABBED1	ADC r11, r11, #0xd10
… ” ! n 	E2ABB2B0	ADC r11, r11, #0xb
␣ … ? q 	E5ACB000	STR r11, [r12, #0x0]!

Box  1: F M … o ♀ S ? n	[FM…o♀S?n]
Box  2: ␣ ␣ ␣ F S ? n ␣	[   FS?n ]
Box  3: ␣ ␣ r ” … o ␣ ␣	[  r”…o  ]
Box  4: ␣ h ♀ ! n ␣ ␣ ␣	[ h♀!n   ]
Box  5: G / ! n W D ! n	[G/!nWD!n]
Box  6: ␣ ␣ ␣ … ” ! n ␣	[   …”!n ]
Box  7: ␣ ␣ ␣ … ? q ␣ ␣	[   …?q  ]
Box  8: ␣ m F l o ␣ ␣ ␣	[ mFlo   ]
Box  9: y L R o m ” R o	[yLRom”Ro]
Box 10: ␣ ␣ ␣ F G E n ␣	[   FGEn ]
Box 11: ␣ ␣ ␣ … ? q ␣ ␣	[   …?q  ]
Box 12: ␣ “ S T n ␣ ␣ ␣	[ “STn   ]
Box 13: Y N ? n F N R o	[YN?nFNRo]
Box 14: S ? n … ␣ R n ␣	[S?n… Rn ]

Raw data (in hexadecimal):
C0 C7 B0 E3 B6 CD AC E2 FF 00 00 00 C0 CD AC E2 00 FF 00 00 E6 B2 B0 E3 00 00 FF 00 DC B6 AB E2 00 00 00 FF C1 BA AB E2 D1 BE AB E2 FF 00 00 00 B0 B2 AB E2 00 FF 00 00 00 B0 AC E5 00 00 FF 00 E1 C0 E0 E3 00 00 00 FF ED C6 CC E3 E1 B2 CC E3 FF 00 00 00 C0 C1 BF E2 00 FF 00 00 00 B0 AC E5 00 00 FF 00 B1 CD CE E2 00 00 00 FF D3 C8 AC E2 C0 C8 CC E3 FF CD AC E2 B0 00 CC E2 00 FF

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