Hi, I am using Gcc-4.0.3 ARM Cross-Compiler for my project. My project was earlier compiled using ADS v1.2 complier. When building assembly files with Gcc-4.0.3, the following error occurs: ../boot.S:1: Error: junk at end of line, first unrecognized character is `-' The assembly code in first few lines are: @----------------------------------------- @ Filename: boot.s ------- The assembler is invoked using following options: arm-elf-as -mcpu=arm7tdmi -march=armv4t -mthumb -mthumb-interwork -o ../obj/boot.o ../boot.S Can anybody tell me the problem cause and how to solve it? Is there any documentation/manual available for "GCC ARM Assembler" ? Regards, Kanwal