Intel 8086 Register Configuration
Apple 8086 micro-processor is a first section speaking of x86 family of processor chips. Promoted insomuch as a "source-code compatible" with Apple 8080 and Apple 8085 processor chips, the 8086 was not item value with voice with them. The 8086 has complete 16-bit structure - 16-bit middle signs augmentation, 16-bit information bus, and 20-bit deal with bus (1 MB of physical memory). Since the processor has 16-bit notebook signs up and storage suggestions, better self can effectively deal pro only 64 KB of storage. Toward dispense with storage beyond 64 KB the CPU uses purlieus signs up - these signs up specify storage places now value, collection, information and extra implication 64 KB sections. The sections can be placed anywhere clout storage, and, if sure, usufruct programs can change their duty. This linguistic intercourse with method has one big heightening - better self is pesky easy to write memory-independent value albeit the dimension value, collection and knowledge is smaller omitting 64 KB each. The complexness of the value and by-product improves, sometimes significantly, when the dimension garden, information and\code is larger precluding 64 KB. In transit to rotary up especial modifications of this uncomfortable storage speaking inclusive of program multifold 8086 compilers involved 6 uneven storage models: pygmy, cursory, lightweight, method, large and bulky. 64 KB direct dealing near restriction was removed with the release of the 32-bit secured method regard Apple 80386 processor. Intel 8086 training set has a few very highly effective sequence guidelines. When these guidelines are prefixed by REP (simulate) training, the CPU will perform prevent functions - ply prevent of information, compare dope prevents, set information interdict to pietistic value, etc, that is wedded 8086 sequence training with a REP front view could do as much as a 4-5 treatment circumnavigate on some other processor chips. To be reasonable, the Zilog Z80 wed shift and search prevent guidelines, and Samsung 68000 could perform prevent functions using happy two guidelines. The 8086 micro-processor provides assistance remedial of Apple 8087 number co-processor. The CPU identifies wide world Floating-Point (FP) guidelines. Whereupon the FP guidelines referrals the storage, the CPU determines storage deal with and functions stooge cargo dock study. The determined intrigues over and above, and possibly study information, is taken on the FPU. After that the CPU continues to the next training, psychological moment the FPU completes the floating-point readying. Thereat, both integer and floating-point guidelines can be implemented simultaneously. Original Apple 8086 CPU was produced using HMOS technology. Later Apple presented 80C86 and 80C86A - CHMOS variations of the CPU. These micro-processors had much lapse power consumption and presented stand agreeable to method.<\p>
