MB_Spartan3_virtualplatform_8_1.zip_spartan_spartan3

/* * README for XMK Application * Last Updated: 02/10/2005 */ Summary: ======== Kernel with a main controlling shell thread. Can launch 5 other application threads from the shell through the command line. - A linked list example, illustrating buffer memory allocation APIs - A semaphore example, illustrating the POSIX semaphore API - A producer consumer example, illustrating the message queue API - A timer example, illustrating software timer support - A gpio example, illustrating I/O support Applications/Threads/Processes: =============================== SHELL: * Command line shell capable of listing and launching other application threads. Type "help" at the command line for more information. LLIST: * Linked list implementation illustrating block memory allocation APIs. SEM: * Semaphore example, with two threads using semaphores to synchronize. Uses two semaphores to rendezvous with created threads. * Uses one semaphore as the protection semaphore. PRODCON: * Producer consumer example, using a single blocking message queue. Producer keeps feeding data to the queue while the receiver * tries to fetch the data from the queue. Both producer and consumer automatically block when the queue gets full. TIMERTEST: * Timer example, illustrating software timers. Different threads sleep for different amounts of time (specified in some time unit). * They also dump the value of the kernel tick at different times. TICTAC: * Simple AI tictac toe. Has 9 levels of recursion in AI computation loop. Stack requirements might be high accordingly. * Main thread launches the tictac thread with a dynamically assigned stack. Therefore the burden of stack allocation and * assignment for each thread can be pushed to the kernel. Stack parameters passed in pthread_attr_t structure. GPIO: * Sends a set of values to toggle the I/O bits.