Microprocessors contain at least two primary buses within their architecture. One is the data bus and the other is the ______________ bus.

The central and most used register within a microprocessor is the __________ .

The ____________________ is a temporary storage location for data travelling to and from the data bus.

At any given time, the ____________________ holds the next (addr + 1) address to be operated upon in memory.

The __________________ produces a variety of control signals like operating memory read/write lines, transferring data from buses to registers, and performing other functions that operate the microprocessor.

Retrieving an instruction from memory and decoding that instruction to determine its directives is known as the _______________ .

Carrying out the directives of an instruction is known as the _______________.

When a program is ran, the fetch/execute cycle repeats until the program is complete and a WAI instruction stops the process.

An opcode is the hexadecimal machine code for an instruction.

Machine language uses mnemonics.

An instruction (eg. LDAA) can have more than one opcode depending on the addressing mode chosen.

Which of the following addressing modes finds the 8-bit address of the operand in the memory location following the opcode?

When conditional branching instructions are used (eg. BNE, BEQ, etc), what register determines if the conditional branch is taken or not?

BRA is a conditional branching instruction.BRA is a conditional branching instruction.

A programming algorithm can be written that will perform multiplication by repeatedly looping through addition?

The program counter in the 6800 microprocessor is ____________ bits wide.

Which of the following is NOT a flag in the condition codes register?

Within a program the programmer may set or chose where the stack will be located.

Which of the following methodologies does the 6800 use for sending and retrieving data from the stack?

The WAI instruction is an example of an instruction that affects the stack.

Which of the following registers keeps track of where the top of the stack is located?

In the 6800 MPU, each accumulator has its own carry flag.