To design a new processor or to modify an existing one, designers need to gather data to estimate the influence of specific architecture features on the performance of the <i>proposed machine</i> (PM). To obtain this data, it is necessary to measure on an <i>existing machine</i> (EM) the dynamic behavior of <i>typical programs</i>. Traditionally,… (More)
The use of registers in a processor reduces the data and instruction memory traffic. Since this reduction is a significant factor in the improvement of the program execution time, recent VLSI processors have a large number of registers which can be used efficiently because of the advances in compiler technology. However, since registers have to be… (More)
This work discusses the protection of the Processor Status Word of the PDP-11/60 computer and shows how a non-privileged user can modify the processor priority and execute his programs at PR7 priority level, that is, with all interrupts blocked. It also suggests some possible solutions to this problem. Finally, it considers how the problem is solved in the… (More)
crear un programa a nivel nacional para digitalizar todas las tesis que se presenten en sus universidades.