Consider the following AVR Assembly Language Code which is passed through an ass

Question

Consider the following AVR Assembly Language Code which is passed through an assembler.

.include "m324Adef.inc"
    jmp RESET
    jmp HANDLER_1

.dseg
var1: .BYTE 2
var2: .BYTE 6


.cseg
const: .DB 0xAA, 0xCC, 0xDD

reset:
    ldi ZL, low(var1)
    ldi ZH, high(var1)
    ldi r17, 0xBB
    st Z, r17
    ldi ZL, low(const<<1)
    ldi ZH, high(const<<1)
    lpm
    jmp mainloop
.dseg
var3: .BYTE 4
.cseg
.org 0x15
mainloop:
    ldi r20, 0xF0
    ...

Determine the segments and values of each of the following symbols. (Enter the segment as either "cseg" or "dseg" - without the quotes. Enter the values as decimal integers.).

Explanation / Answer

Symbol segnent value

var1 dseg 0xFF

var3 dseg 0xFF

reset cseg 2 (0x02)

const cseg 0 (0x00)

Mainloop cseg 10 (0x0A)

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.