Arm/decstr1

Write a function that reads an ASCII null-terminated string containing decimal digits, and returns the value of the number. The number is guaranteed to fit within an unsigned 32-bit number.

Sample Input

"1234"

Sample Output

r0=1234 (or 0x4d2)

// A test case to test your function with
.data
Str: .string "1234"

.text
.global _start
_start:
    ldr r0, =Str    
    bl decstr
    b _start        // End of testing code

// Parse a decimal string
decstr:

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arm/decstr1

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Arm/decstr1

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Sample Input

Sample Output

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