Untitled Quiz

A programming instruction that can translate to multiple machine-level instructions.

An assembly instruction that directly maps to one machine code instruction.

Loading data directly from a register into another register.

Loading data directly into a register from an immediate value.

Loading data from a specific memory location into a register.

Loading data from a memory location whose address is stored in a register.

A unique numerical identifier for a storage location in memory.

A way to tell the microprocessor to fetch 32 bits (a double word) from memory starting at a given address.

A data type that represents 32 bits of information.

A 32-bit general-purpose register used to store data in a microprocessor.

Specifies a memory location and how to fetch 16 bits (a word) from it

Instruction to load 16 bits from a memory location into the Bx register. The address is in the Cx register.

A numerical value indicating how many bytes to offset from a base address.

Specifies the memory segment where data is located, complementing register offset to get the real address.

Registers in a microprocessor used for data storage. Often used as pointers in memory access instructions.

Using the XOR instruction with a register and itself to set the register to zero.

A bitwise logical operation that sets a bit to 1 if the corresponding bits in the operands are different, and 0 if they are the same.

An operation that inverts the bits of a register.

An instruction that multiplies the value in the Ax register with another operand to produce a larger product.

The value in the Ax register to be multiplied and one other register. The second operand is implied to be in the register.

Multiplication of two 16-bit numbers.

A data transfer operation that copies the source operand to the destination operand, leaving the source unchanged.

Copies data, leaving the source unchanged.

The operand from which data is copied.

The operand to which data is copied.

A register that holds the address of the next instruction to be executed by the microprocessor.

An instruction that transfers program control to a subroutine, saving the current instruction pointer's value to allow the program to return to its original location after the subroutine finishes.

A separate block of code designed to perform a specific task, typically called from other parts of the program.

The process of interpreting an instruction's machine code to determine what operation it represents and what data it needs to work with.

The process of retrieving an instruction from memory based on the value of the instruction pointer.

A register that points to the current top of the stack. It is responsible for managing memory for temporary data storage during program execution.

An instruction that adds data to the stack. It decrements the stack pointer by the size of the data being pushed and then copies the data to the location pointed to by the new ESP.

An instruction that removes data from the stack. It copies the data from the top of the stack to a register, increments the stack pointer by the size of the data popped, and then effectively removes the data from the stack.

A designated area in memory reserved for the stack. It is used for temporary data storage during program execution.

When pushing data onto the stack, the stack pointer (ESP) is decremented by the size of the data being pushed. This ensures the data is placed at the correct memory location on the stack.

The Stack Pointer (ESP) is decremented by the size of the data being pushed to make room for the new data on the stack. This ensures the data is placed at the correct memory location, with older data stored further 'down' the stack.

The stack grows downwards, meaning that as data is pushed onto the stack, the stack pointer (ESP) is decremented to access lower memory addresses.

PUSH and POP operations change the location of the stack pointer (ESP). The size of the data being pushed or popped determines how much ESP is incremented or decremented, ensuring data storage and retrieval are done at the correct addresses.

The size of the data being pushed or popped determines the amount by which the stack pointer (ESP) is decremented or incremented. For example, pushing a 16-bit value will decrement ESP by 2, while pushing a 32-bit value will decrement it by 4.

The start of the stack segment is determined by the value stored in the Stack Segment Register (ESS). This register defines the beginning of the memory space allocated for the stack.