Accessing the R13, R14 & R15 Registers for ARM7

Hi, I had written a function for accessing the Special Registers like R13, R14 & R15.. Here Im using LPC2387 controller and the Keil UVsion 3. Its compiled successfully when im entering into deubug...
Accessing the R13, R14 & R15 Registers for ARM7

Hi, I had written a function for accessing the Special Registers like R13, R14 & R15.. Here Im using LPC2387 controller and the Keil UVsion 3. Its compiled successfully when im entering into deubug...
R14 = 0xFFFFFFFD

Hello I need some help to understand this behaviour. When I run my code (FreeRtos) step by step , into the vPortSVCHandler we call a function with BX R14 , but R14 is shown to be 0xFFFFFFFD .....
R14 = 0xFFFFFFFD

Hello I need some help to understand this behaviour. When I run my code (FreeRtos) step by step , into the vPortSVCHandler we call a function with BX R14 , but R14 is shown to be 0xFFFFFFFD .....
Optimizing gcc to use lr / r14 in leaf functions...?

Note: This was originally posted on 5th November 2009 at http://forums.arm.com Hi everyone, I'm having difficulty convincing gcc to use r14 when cross-compiling C code for my most critical leaf function...