I am trying to use coocox os to be use with stm32l083cz microcontroller which has cortex m0+ architecture.I'm using atollic truestudio IDE for compiling.
while i am compiling below error comes:

/tmp/ccDuwdRU.s: Assembler messages:
/tmp/ccDuwdRU.s:242: Error: selected processor does not support `stmdb R0!,{R4-R11}' in Thumb mode
/tmp/ccDuwdRU.s:246: Error: lo register required -- `ldmia R0!,{R4-R11}'
/tmp/ccDuwdRU.s:252: Error: unshifted register required -- `orr LR,LR,#0x04'
please help me with this