摘要
本文通过对Apple-Ⅱ高分辨率区象素在显示缓冲区内的存贮分布特点的研究,得到了象素坐标与显示缓冲区地址及位信息的转换关系。在此基础上,通过在内存中设置预置对照表(PCT)和帧信息表(PIT)的办法,结合强有力的位信息处理手法完成了实时动态波形的快速前移显示方法。由此开发的软件经使用表明,效果良好,显示信号频率上限达到了3 kHz。
The translation equations among the image spot coordinates,addresses in display buffer area and bit information are abtained in the paper by means of studying the memory dis- tributing characteristics in display buffer fegion of Apple-Ⅱ high resolution ratio image ele- ments. On the basis of this,by employing the method of allocating predetermined comparison table (PCT) and frame information talbe(FIT) in the main memory combined with strong bit information processing,the fast displaying method of real-time dynamic waveform is then achieved. The applying result is proved to be good with the upper frequency bound of signal reaching 3kHz.
出处
《桂林电子工业学院学报》
1991年第2期32-36,共5页
Journal of Guilin Institute of Electronic Technology
关键词
微机
动态波形
显示法
Apple机
predetermined comparision table(PCT)
frame information table(FIT)
real-time dynamic waveform
foremoving processing
