C language of the DOS operating system source code, very classic, a good operati...

HDLC调试源码，在ARM7上测试通过（不带操作系统的）。-HDLC debug source code, in the ARM7 on the test (without operating system).

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可变分区存储模拟系统-为课程设计用的。操作系统-Variable partition storage simulation system- used for curriculum design. Operating system

虚拟存储管理的模拟，是一个实验，可以参考一下，-Virtual storage management simulation is an experiment, you can refer to,

A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.-A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running comput

已移植到TI OMAP1610处理器的Nucleus操作系统源码，并提供了一个Demo的应用程序。-have been transplanted to the TI OMAP1610 processor Nucleus operating system source code, and provide a Demo applications.

关于操作系统：本程序可选用优先数法或简单轮转法对五个进程进行调度。每个进程处于运行R（run）、就绪W（wait）和完成F（finish）三种状态之一，并假定起始状态都是就绪状态W。-On the operating system: This procedure may choose to use the priority number of law or simple rotation on the five process scheduling. Each process is running R (run), ready W (wait) and the completion of F (finish), one of three states and assume that the initial state is a state of readiness W.

详细说明：这是一个可以设置显示器的显示模式的程序，程序的分辨率，频率都可以在运行的时候设置-This is a display you can set the display mode of procedure, procedural resolution, the frequency can be set at run time  

一个模拟操作系统进程申请释放的简单程序-a simulation process for the release of the operating system the simple procedure

threadx的线程、信号量、互斥量、消息队列、定时器、中断等操作。txe_ba.ctxe_bpc.ctxe_bpd.ctxe_br.ctxe_byta.ctxe_bytc.ctxe_bytd.ctxe_bytr.ctxe_efc.ctxe_efd.ctxe_efg.ctxe_efs.ctxe_qc.ctxe_qd.ctxe_qf.ctxe_qr.ctxe_qs.ctxe_sc.ctxe_sd.ctxe_sg.ctxe_sp.ctxe_taa.ctxe_tc.ctxe_tda.ctxe_tdel.ctxe_timd.ctxe_tmch.ctxe_tmcr.ctxe_tpch.ctxe_tra.ctxe_trel.ctxe_trpc.ctxe_tsa.ctxe_tt.ctxe_ttsc.ctx_api.htx_ba.ctx_blo.htx_bpc.ctx_bpcle.ctx_bpd.ctx_bpi.ctx_br.ctx_byt.htx_byta.ctx_bytc.ctx_bytcl.ctx_bytd.ctx_byti.ctx_bytr.ctx_byts.ctx_efc.ctx_efcle.ctx_efd.ctx_efg.ctx_efi.ctx_efs.ctx_el.ctx_el.htx_eve.htx_ghs.ctx_ghs.htx_ihl.ctx_ike.ctx_ill.68tx_