You are attempting to link your project in such a way that the target of a relative addressing scheme is further away than can be supported with the 32-bit displacement of the chosen relative addressing mode. This could be because the current project is larger, because it is linking object files in a different order, … Read more
Each row in /proc/$PID/maps describes a region of contiguous virtual memory in a process or thread. Each row has the following fields: address perms offset dev inode pathname 08048000-08056000 r-xp 00000000 03:0c 64593 /usr/sbin/gpm address – This is the starting and ending address of the region in the process’s address space permissions – This describes … Read more
One unit testing framework in C is Check; a list of unit testing frameworks in C can be found here and is reproduced below. Depending on how many standard library functions your runtime has, you may or not be able to use one of those. AceUnit AceUnit (Advanced C and Embedded Unit) bills itself as … Read more
If you want an easy way to code parsers, or you are tight on space, you should hand-code a recursive descent parser; these are essentially LL(1) parsers. This is especially effective for languages which are as “simple” as Basic. (I did several of these back in the 70s!). The good news is these don’t contain … Read more
struct Node1 { Node2*/or Node1*…. packet1; int num1; } struct Node2 { Node1* packet2; int num2; } int main(void) { struct Node1 *data; struct Node1 var1; struct Node2 *packet; struct Node2 var2; data = &var1; packet = &var2; packet->packet2 = data; }
It is the common way to check flags or more precisliy – if bit is set in some register. In this particular example: INAK: Initialization acknowledge This bit is set by hardware and indicates to the software that the CAN hardware is now in initialization mode. So you are basically wait in the infinite loop … Read more
You have it rather the wrong way around. There is no direct hardware link between the mouse hardware and the mouse pointer – there must already software rendering the pointer in response to the mouse motion. If you wanted the pointer to behave differently that would simply be different software rather than another software layer. … Read more