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Stack Watermarking AN316 Assembly Trouble

ESL

I'm trying to run the Main Stack Watermarking procedure as described in Application Note 316, page 7. (https://www.keil.com/appnotes/files/apnt_316.pdf)

However, when I try to build the assembler file "FillSystemStacks.s" in with the project I get two errors.
Error 1: (on both MOV R2 and MOV R3)
  • FillSystemStack.s(12): error: A1492E: Immediate 0xCBCBCBCB out of range for this operation.  Permitted values are 0x00000000 to 0x000000FF
  • FillSystemStack.s(13): error: A1492E: Immediate 0xABABABAB out of range for this operation.  Permitted values are 0x00000000 to 0x000000FF
When I try to fix this by changing the constants to 0xCB and 0xAB I get a new error.
Error 2:  (on both MOV R2 and MOV R3)
  • FillSystemStack.s(12): error: A1859E: Flag preserving form of this instruction not available
  • FillSystemStack.s(13): error: A1859E: Flag preserving form of this instruction not available

 

Pre-compile there's a message "*** Using Compiler 'V5.06 update 1 (build 61)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'", which is probably important to know. I am a newbie at this so please let me know if there's any other information you'd need.

Thanks,

Ethan

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