Environment details: make: 3.18 binutils: 2.18 arm-elf-gcc: 4.2.2 newlib: 1.16.0 gdb: 6.8.50-20080308-cvs Controller AT91SAM7X256 i am successfully able to compile the code for ARM mode (default mode). But i am getting assembler error for thumb mode (-mthumb) The error is: selected processor does not support 'mrs r2,CPSR' CFLAGS used in makefile are ## Compile options common for all C compilation units. CFLAGS = -mcpu=arm7tdmi -march=armv4t -mthumb CFLAGS += -Wall -Werror -gdwarf-2 -std=gnu99 -fno-common -O0 CFLAGS += -MD -MP -MT objects/$(*F).o -MF dep/$(@F).d One strange thing i find is that the instruction (mrs r2,CPSR) for which the assembler is generating an error is no where used in my code Am i missing any falg required for THUMB mode?
Vinit Bidkar wrote: > Environment details: > > Am i missing any falg required for THUMB mode? Problem solved. Solution is present in another thread. Similar problem can be found in another thread called 'Thumb mode in WinARM'. To find this topic, put the string "msr" in the search path. You will find a topic with this name. Thanks Vinit
Vinit Bidkar wrote: > Vinit Bidkar wrote: >> Environment details: >> >> Am i missing any falg required for THUMB mode? > > Problem solved. Solution is present in another thread. > > Similar problem can be found in another thread called 'Thumb mode in > WinARM'. > > Thanks > Vinit Here is the link to that thread http://en.mikrocontroller.net/topic/74457#new
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