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Forum Post: How to modify _c_int00 startup code of SYS/BIOS boot module?

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Hi I am using Sys/Bios with Tiva uC Before my software starts, I need to execute RAM pattern test for entire memory for that reason I cannot just simply register to one of startup hook function pointers because this code is using stack already (wheres my RAM test overwrites entire memory) In linker map file I see that _c_int00 startup code is located in boot.oem4f module and it seems, that is different code than boot.asm delivered with standard library. So my question is how can I modify boot.oem4f _c_int00 startup code to meet my needs, it is possible at all when using Sys/Bios? My configuration: Tiva TM4c129encpdt Sys/Bios: 6.37.4.32 XDC tools: 3.25.6.96 CGT: 5.010 Gregor

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