ruspiro-register 0.3.0

The crate provides simple to use macros to define MMIO registers representations allowing safe access to their contents. In addition this crate defines specific aarch64 and aarch32(CP15) registers to safely use them in rust code. This reduces the need of 'unsafe' calls.
Documentation 
#!/bin/sh

set +ev

if [ $# -eq 0 ] 
    then 
        echo "not enough parameter given"
        exit 1
fi

# check which aarch version to build
if [ $1 = "64" ]
    then
        # aarch64
        export CFLAGS='-march=armv8-a -Wall -O3 -nostdlib -nostartfiles -ffreestanding -mtune=cortex-a53'
        export RUSTFLAGS='-C linker=aarch64-elf-gcc -C target-cpu=cortex-a53 -C target-feature=+strict-align,+a53,+fp-armv8,+neon -C link-arg=-nostartfiles -C opt-level=3 -C debuginfo=0'
        if [ "$2" = "" ]
            then
                export CC='aarch64-elf-gcc'
                export AR='aarch64-elf-ar'
        fi
        cargo xbuild --target aarch64-unknown-linux-gnu --release
elif [ $1 = "32" ]
    then
        # aarch32
        export CFLAGS='-mfpu=neon-fp-armv8 -mfloat-abi=hard -march=armv8-a -Wall -O3 -nostdlib -nostartfiles -ffreestanding -mtune=cortex-a53'
        export RUSTFLAGS='-C linker=arm-eabi-gcc.exe -C target-cpu=cortex-a53 -C target-feature=+strict-align,+a53,+fp-armv8,+v8,+vfp3,+d16,+thumb2,+neon -C link-arg=-nostartfiles -C opt-level=3 -C debuginfo=0'
        if [ -z "$2" ]
            then
                export CC='arm-eabi-gcc.exe'
                export AR='arm-eabi-ar.exe'
        fi
        cargo xbuild --target armv7-unknown-linux-gnueabihf --release
else
    echo 'provide the archtitecture to be build. Use either "build.sh 32" or "build.sh 64"'
fi