Question

2. Enter the value of each stack slot into the stack frame shown below at the end of the following instruction sequence: (Note: refer to the description of the swi instruction in the instruction set). [2 marks] Ids #$3000 ; initialize SP Idd #$3334 ; initialize D register ldx #$4445 ; initialize X register Idy #$6748 ; initialize Y register tap ; make CCR = A sw Stack Content (in hex) $3000 ? ? SP

          2. Enter the value of each stack slot into the stack frame shown below at the end of the following instruction
sequence: (Note: refer to the description of the swi instruction in the instruction set).
[2 marks]
Ids #$3000 ; initialize SP
Idd #$3334 ; initialize D register
ldx #$4445 ; initialize X register
Idy #$6748 ; initialize Y register
tap ; make CCR = A
sw
Stack Content (in hex)
$3000 ? ? SP

2. Enter the value of each stack slot into the stack frame shown below at the end of the following instruction
sequence: (Note: refer to the description of the swi instruction in the instruction set).
[2 marks]
Ids #3000 ; initialize SP
Idd #3334 ; initialize D register
ldx #4445 ; initialize X register
Idy #6748 ; initialize Y register
tap ; make CCR = A
sw
Stack Content (in hex)
3000 ? ? SP

Added by Soledad J.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert Aarya B

12/19/2023

Step 1

Step 1: Load the immediate value #$3000 into the accumulator using the instruction LDS #$3000. Show more…

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Could you explain the steps please? The answer is already provided. [2 marks] LDS #$3000 Initialize SP Initialize D register Initialize X register Initialize Y register ; make CCR = A Stack Content in hex PPI #$3334 3 3 A4 $ 25 XPI #$4445 YPI #$6748 IDY TAP SWI RTNH RTNL $3000 SP