Help/Support Hacking VMOV.F64

Ted2 · May 12, 2017

So I've never worked with vectors, so I read @shmoo his tutorial on it. But I'm not sure what to do.

This is the code:

VMOV.F64        D16, #2.0   <------->
STR             R0, [SP,#0x3C]
STR.W           R0, [R5,#0xCF4]
MOV             R0, #(cfstr_Acceleration_0 - 0x392CE4)
ADD             R0, PC  ; "acceleration"
STR.W           R0, [R5,#0xCBC]
VMOV            R2, R3, D16   ?????
LDR.W           R10, [SP,#0x98]
LDR.W           R0, [R11]
MOV             R1, R10
BLX.W           _objc_msgSend
MOV             R7, R7
BLX.W           _objc_retainAutoreleasedReturnValue

The one marked with <------> is the correct value, but I need to set it to like to #100+.

The one marked with ??? calls the VMOV.F64 (i think, it's the only function with D16 in it)

So how would I set the first function to #100?

Thankyou in advance!

May 13, 2017

3 hours ago, Ted2 said:
So I've never worked with vectors, so I read @shmoo his tutorial on it. But I'm not sure what to do.

This is the code:
VMOV.F64        D16, #2.0   <------->
STR             R0, [SP,#0x3C]
STR.W           R0, [R5,#0xCF4]
MOV             R0, #(cfstr_Acceleration_0 - 0x392CE4)
ADD             R0, PC  ; "acceleration"
STR.W           R0, [R5,#0xCBC]
VMOV            R2, R3, D16   ?????
LDR.W           R10, [SP,#0x98]
LDR.W           R0, [R11]
MOV             R1, R10
BLX.W           _objc_msgSend
MOV             R7, R7
BLX.W           _objc_retainAutoreleasedReturnValue
The one marked with <------> is the correct value, but I need to set it to like to #100+.

The one marked with ??? calls the VMOV.F64 (i think, it's the only function with D16 in it)

So how would I set the first function to #100?

Thankyou in advance!

Mod the VMOV.F64 D16, #2.0 to VMOV.F64 D16, #100.0

Ted2 · May 13, 2017

7 hours ago, shmoo said:

Mod the VMOV.F64 D16, #2.0 to VMOV.F64 D16, #100.0

I can't says armconverter max I can do is 15

Updated May 13, 2017 by Ted2

0xygen · May 13, 2017

2 hours ago, Ted2 said:

I can't says armconverter max I can do is 15

VMOV.F64 D16, #31.000000E+00

31x actually

Ted2 · May 13, 2017

1 hour ago, ZahirSher said:

VMOV.F64 D16, #31.000000E+00

31x actually

Ohh, yea can't do 17 either so I thought that was max but I just saw urs is max haha. Do you know how I can make t br able to like #100

0xygen · May 13, 2017

Just now, Ted2 said:

Ohh, yea can't do 17 either so I thought that was max but I just saw urs is max haha. Do you know how I can make t br able to like #100

is the VMOV the starting of the function?