The ARM1176JZF-S (which I will refer to just as ARM) microprocessor belongs to the ARM11 family and uses ARMv6 32-bit RISC architecture. The AVR has a 2 stage single level pipeline, which is a simple pre-fetch and execute system. The ARM however has a much more complex pipeline system. It uses a 8-stage dual level pipeline; fetch1, fetch2, decode, register, shift, data1, data2 and write-back. This has many advantages over a basic 2 stage pipeline. Parallelism within an instruction allows continued
Why does a computer system include a cache or buffer? Cache Memory. Cache memory is used to increase the performance of the PC. It holds data and instructions retrieved from RAM to provide faster access to the CPU. As a computer system is built using components from different suppliers, there are no standards on the speeds and transfer rates of these components. The purpose of most buffers is to act as a holding area, enabling the CPU to manipulate data before transferring
with duct tape. This mindset is actually one major problem with cybersecurity today. One form of attack is a buffer overflow attack. This cyber-attack involves corrupting the memory of a system in order to take control of the system. It was discovered that the stack structure of a computer’s memory can be exploited, but instead of implementing a new system, duct tape measures such as stack guards and canary words were added. As one would guess these obstacles make it harder for the attacker to corrupt
0 and Win32S. It also displays the program’s use of the C and C++ Run-Time Library and ANSI C Extensions. Example: Using the Call Stack:The stack frame lets you display the source code for any function in the stack. This is usefulfor seeing the events that led to the error. If the error involves a memory block that is allocated elsewhere, the stack frame also lets you view the point at which the memory is allocated.