As Z-buffer implementations generally rely on fixed-precision depth-buffer registers implemented in hardware, there is scope for visibility problems due to rounding error.
2.
In cases where the parallel outputs should not change during the serial loading process, it is desirable to use a latched or 74595 ) the serial data is first loaded into an internal buffer register, then upon receipt of a load signal the state of the buffer register is copied into a set of output registers.
3.
In cases where the parallel outputs should not change during the serial loading process, it is desirable to use a latched or 74595 ) the serial data is first loaded into an internal buffer register, then upon receipt of a load signal the state of the buffer register is copied into a set of output registers.
4.
These registers include the " IR " ( instruction register ), " IBR " ( instruction buffer register ), " MQ " ( multiplier quotient register ), " MAR " ( memory address register ), and " MDR " ( memory data register ) . " The architecture also uses a program counter ( " PC " ) to keep track of where in the program the machine is.
5.
For example, the memory buffer register provides arithmetic operands, is part of the instruction register, and stores data to rewrite the core memory . ( This restores the core data destroyed by the read . ) In spite of its basic simplicity, the use of very small modules made it an expensive machine, with a large part of the cost sunk into the small modules, the thousands of gold-plated connectors, and the complex wire-wrapped backplane.
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