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2 cards from this section. Quick, good the night before a test.
What is a register?
Think about where calculations are performed in a CPU.
Define effective address.
Recall how we access data in memory.
What is a register primarily used for?
Consider what happens to data in the CPU during calculations.
Is direct addressing mode efficient for large data sets?
Think about flexibility in accessing various parts of memory.
Design a simple loop in assembly language that accumulates the values from an array into a register R5 using R1 as the index and print the value of R5 after the accumulation.
Think about how indexing in programming languages works.
If opcode takes the entire 8 bits of memory and current program counter is at 0x100, where will it be after executing a 2-byte instruction?
Consider how the instruction size affects subsequent operations.
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