In text-mode Video RAM, each screen cell is stored as a 16-bit word. What does the memory byte at the higher address (odd offset) contain?
Ch 10: Hardware Interrupts and PIC 8259
Examines hardware interrupt architecture, masking interrupts via IMR (port 0x21), cascading master and slave PICs, sending non-specific EOI (0x20) commands, and servicing asynchronous peripheral requests.
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CS401 - Computer Architecture and Assembly Language Programming Examination Practice
Timed practice exam simulation for CS401 - Computer Architecture and Assembly Language Programming.
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Which of the following code sequences correctly sets up the Extra Segment (ES) register to point to text-mode Video RAM?
In text-mode Video RAM, how many memory bytes correspond to each character cell on the screen?
Executing 'MOV word [ES:0], 0x0741' displays character 'A' on screen. What is the background color of the character cell?
What is your understanding of an Incrementing Stack versus a Decrementing Stack in computer architecture?
What is the difference between the CALL instruction and the RET instruction in 8088 assembly language?
In DOS executable architecture, the first instruction of a '.COM' file must be located at offset:
In text-mode Video RAM, which bit position in the 8-bit attribute byte controls character blinking on the screen?
The mechanism through which a non-default segment register is explicitly specified in an assembly memory operand (e.g., 'MOV AX, [ES:BX]') is known as a:
In 8088 CPU architecture, the Stack Pointer (SP) register is implicitly paired by default with which segment register?