The Syscall for read and write are described as:

Register $-$ Parameter

SYS$\_$readX$8$SYS$-$read $(63)$X$0$Input location, STDIN $(0)$X$1$Address to Store CharactersX$2$Number of Characters to readReturnsNumber of characters read in X$0$

$$

SYS$\_$writeX$8$SYS$-$write $(64)$X$0$Input location, STDOUT $(0)$X$1$Address of CharactersX$2$Number of Characters to writeReturnsNumber of characters written in X$0$

$$

The following data definition and code is run:

$//$ data definition

inChars: $.$fill $11,1,0$x$0$

prompt:$$

$.$asciz "Enter a message up to $10$ characters long!

$"$

promptSize $=.-$prompt

$//$ Code

MOV X$0,$ #$0$

LDR X$1,=$prompt

MOV X$2,$ promptSize

MOV X$8,$ #$64$

SVC $0$

MOV X$0,$ #$0$

LDR X$1,=$inChars

MOV X$2,$ #$11$

MOV X$8,$ #$63$

SVC $0$

MOV X$3,$ X$0$

MOV X$0,$ #$0$

LDR X$1,=$inChars

MOV X$2,$ X$3$

MOV X$8,$ #$64$

SVC $0$

MOV X$0,$ #$0$

LDR X$1,=$prompt

MOV X$2,$ #promptSize

MOV X$8,$ #$64$

SVC $0$

$$

$$

When this code is run the user types$$

Test

What is printed $?$