Arm/chrcpy

Write a function that will copy one character from a string to a second string. Your function will be passed four parameters: The first two parameters specify the source string and character position. The third and fourth parameters specify the destination string and character position. Copy the character. (Don't consider null-termination, overflows, etc.)

int chrcpy (char *src, int src_pos, char *dst, int dst_pos);

Expected solution length: Around 5 lines.

Sample Input

chrcpy("hello", 1, "bye", 1)

Sample Output

"bye" -> "bee"

.data
Src: .string "hello"
.align 2   // Insert padding so it's easier to read.
Dst: .string "bye"

.text
.global _start
_start:
    ldr r0, =Src
    ldr r1, =1
    ldr r2, =Dst
    ldr r3, =1
    bl chrcpy
    1: b 1b    // Done

// Copy a character from one string to another
chrcpy:

Write your solution here

Upload a source file...

arm/chrcpy

arm/swapPrevious

Nextarm/load_align

Arm/chrcpy

From ASMBits

Sample Input

Sample Output

Write your solution here

Or upload a file

Solution