+ memcpy function
! use gcc for assembly files (to use preprocessor)
! objdump: dump all sections
! asm files: use .S instead of .s (for preprocessor) & setup an irq stack
+ bcm2835: add BCM2835_PERI_BASE variable
+ linker script: add .interrupt_vector section (at addr 0), some cleanup
+ Makefile: dependency handling for asm files
+ timer interrupt & ARM interrupt handling
! some code formatting