在某些技术讲座及内部发行的资料上[1]、[2]提到:“8086的地址线有20根,即A_(19)-A_0。在最小系统内A_(16)-A_(19)不用,……所以在最小模式下最大的寻址空间为64 K字节。”这种提法值得商榷。例如,在国内有较多引进的Intel公司的SDK-86单板计算机,是以最小模式配置的;使用了A_(16)-A_(19)。在按SDK-86 RESET键时,它立即执行位于FFFFOH的指令。SDK-86的监 In some technical lectures and internal distribution of the data [1], [2] mentioned: “8086 address lines have 20, that A_ (19) -A_0 in the smallest system A_ (16) -A_ 19) No, ... so the maximum addressing space in the min-mode is 64 Kbytes. ”This formulation is questionable. For example, Intel Corporation’s SDK-86 single board computer, introduced more in China, is configured in the minimum mode; A_ (16) -A_ (19) is used. When pressing the SDK-86 RESET key, it immediately executes the instruction at FFFFOH. SDK-86’s supervision