Re:The descent to C
by numeromancer on Tuesday January 28, 2014 @10:08AM
(#7137432)
2. Direct memory mapped hardware access. For example: device drivers, kernel, embedded systems, microcontrollers.
Of course doing this usually means your code isn't portable, sometimes not even to other versions of the same compiler. I often wish C had a defined order for bitfields, for example.
One of the things I do to help debug & test embedded code is to factor out code which isn't dependent on the hardware platform (eg communication protocols) into a library, and compile it for, and write test programs to test them on, the host. So even embedded code is often best written to be as portable as possible.
Of course doing this usually means your code isn't portable, sometimes not even to other versions of the same compiler. I often wish C had a defined order for bitfields, for example.
One of the things I do to help debug & test embedded code is to factor out code which isn't dependent on the hardware platform (eg communication protocols) into a library, and compile it for, and write test programs to test them on, the host. So even embedded code is often best written to be as portable as possible.