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Show o i •/"//'i-i-V, memory .•cV.r-'...•,'.Vi 78 V ) -Us»- procf cfescri ess, iption process stack segment's emofy base reg con Ire I addressing It can be Beer, that although the FLEX environment has effectively dene; away with direct addressing and introduced relative (.and moveable) data entities in the segmenting scheme, brings actually hold still for the major part of the time and the basic overhead during an event is a short add whose time will be absorbed by the micro code hardware. Data Segments Associatnd with a Process Stack The exact format of a process-stack will be discussed in the next section or execution. Now it will suffice to say that each slot in : le process stack is associated with a different vari .. le name in FLEX. During compilation a variable name in trn Tformed to a relative index in the stack. The slot :'-tse" may hold a number or a pointer (called a descriptor), |
