eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences April 2010 22 1 83 88 jusps-A 1031 article Souley Boukari 1 Salami 2 Hamza Onoruoiza 2 Mathematical Sciences Programme, Abukakar Tafawa Balewa University, Bauchi (NIGERIA) Department of Mathematical Sciences, Nasarwa State Universtiy, Keffi (NIGERIA) <p style="text-align: justify;">In this paper, a simulator for the Pentium microprocessor (PENTISIM) was developed. The PENTISIM extended some of the features of existing microprocessor simulators such as number of registers and instructions implemented. This tool is strongly recommended for students and researchers learning to know more about microprocessors and assembly language programming.<br /> &nbsp;</p> https://www.ultrascientist.org/paper/1031/ register assembly language