发布于 2014-11-07 20:39:35
5楼
LIR :Load the register indirectly .The contents of a memory word are loaded into the specified register . The address is in ACCUM 1.
"LIR 1" MEANS: Load the specified register with the content of a memory word addressed by ACCU 1 (20-bit address).
执行完LIR1后,累加器1(ACCU1)内容没变,还是原来的地址信息。
知其道,用其妙!