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constructive solid-geometry methods csgconstructive models represent a solid as a combination of primitive solids this modeling technique combine the
constructive solid geometry csg or c-repa csg model is based on the topological notion that a physical project object can be divided into a set of
manifoldsthe surface of a solid must satisfy some conditions so that the resulting solid is well-behaved this is the so-called manifold condition
q explain the instruction decodeinstruction decode this phase is performed under control of control unit of computer the control unit determines the
q how steps of instruction execution can be broken downlets explain how these steps of instruction execution can be broken down to micro-operations
q show the instruction execution by using the micro-operationsa simple instruction can require instruction fetch fetching instructions from the
tessellated modellers solid modeling this describes a class of simplified boundary-representation modellers which approximate to curved
q explain arithmetic shift micro-operationsin arithmetic shift a signed binary number is shifted to right or to the left so an arithmetic shift-left
q explain logical shift micro-operationsin logical shift data entering by serial input to left most or right most flip-flop which depends on right or
q illustrate shift micro-operationsshift is a valuable operation that can be used for serial transfer of data these operations can also be used along
determine the edge tableeach entry in the edge table contains those information mentioned earlier edge name start vertex and end vertex left face and
q what about division and multiply operationsin most of the older computers divisions and multiply were implemented using subtractadd and shift
q define the arithmetic micro-operationsthese micro-operations execute simple arithmetic operations on numeric data stored in registers the
the winged-edge representationperhaps the oldest data structure for a b-rep is baumgarts winged-edge data structure it is quite different from that
q illustrate memory read operationmemory unit receives the address from a register known as the memory address register designated by mar data is
q explain the memory transfer processmemory transfer transfer of information from memory to outside world which implies io interface is known as a
q show the bus and memory transfersa digital computer has many registers and rather than connecting wires amid all registers to transfer information
q show the conflict in registerall micro-operations written on a line are to be executed at same time provided the statements or a group of
q what is control functionif transfer is to take place only under a predetermined control condition then this condition can be specified as a control
q how to information transfer from one register to anotherinformation transfer from one register to another is designated in symbolic notation by a
what is euler operatoronce a polyhedron model is available one might want to edit it by adding or deleting vertices edges and faces to create a new
the euler-poincare formula the euler-poincareacute formula describes the relationship of the number of vertices the number of edges and the number
polyhedra and eulers formulathe b-rep of a polyhedra that are holomorphic to a sphere are topologically valid if they satisfy the following equations
register transfer micro-operationsthese micro-operations as the name proposes transfer information from one register to another the information
q explain the type of micro-operationslets first discuss type of micro-operations most common micro-operations performed in a digital computer can be