Ch 02: 16-Bit Segmented Memory Model & Addressing Modes

What is the maximum physical memory capacity directly addressable by the iAPX88 (8088) processor?

The 8088 processor accesses its maximum 1 MB physical memory space using an address bus of what width?

In 8088 memory architecture, an absolute location identifier such as 0x1DED0 (where instruction opcode 0xB80500 resides) is classified as a:

When converting 16-bit Segment and Offset addresses into a 20-bit physical address, the calculation is performed as: (Segment Address with lower 4 bits zero) + (Offset Address with ________ 4 bits zero) = 20-bit Physical Address.

; Physical Address Calculation:
; Segment 0x1DED -> 0x1DED0 (lower 4 bits zero)
; Offset  0x0005 -> 0x00005 (upper 4 bits zero)
; Sum            -> 0x1DED5

When combining segment and offset addresses, if the addition generates a 20-bit overflow carry bit, the carry is discarded without being stored. This phenomenon is known as address ________.

In 8088 segmented memory architecture, memory segments can only begin at 16-byte physical memory boundaries, which are known as ________ boundaries.

When a program initializes segment registers CS, DS, SS, and ES to the exact same base address, what is this memory structure called?

In assembly language data definitions, what is the allocated memory size of a variable declared with 'num1: db 5'?

num1: db 5

In 8088 assembly language, which addressing mode is used by the instruction 'MOV AX, BX'?

mov ax, bx

In 8088 assembly language, which addressing mode is used by the instruction 'MOV AX, [BX]'?

mov ax, [bx]