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来自「一个可以立即使用的嵌入式操作系统」· 代码 · 共 16 行

This is a self-extracting archive containing sources, documentation,
and binaries for CTask version 2.2c.

CTask is a Multitasking Kernel for C, which allows preemptive
multitasking in C programs. Includes full sources for the Kernel, a
full duplex interrupt driven serial I/O driver, a DOS access
multiplexer, printer and keyboard interfaces. CTask programs can
spawn other programs and go TSR. Version 2.2c fixes a number of known
bugs. Mainly C, some ASM, for use with Turbo C or Microsoft C. 

CTask is unrestricted public domain, no license, royalty, or
registration fees must be paid for private or commercial use.

You need at least 1.5 Megabytes of free disk space to unpack this
file. Do you want to proceed? Answer Y to unpack, N to abort.