.ORIG x3000 LEA R1, HELLO AGAIN LDR R2, R1, #0 BRz NEXT ADD R1, R1, #1 BR AGAIN
ID: 3691580 • Letter: #
Question
.ORIG x3000
LEA R1, HELLO
AGAIN LDR R2, R1, #0
BRz NEXT
ADD R1, R1, #1
BR AGAIN
NEXT LEA R0, PROMPT
TRAP x22 ; PUTS
LD R3, NEGENTER
AGAIN2 TRAP x20 ; GETC
TRAP x21 ; OUT
ADD R2, R0, R3
BRz CONT
STR R0, R1, #0
ADD R1, R1, #1
BR AGAIN2
CONT ADD R2, R2, #0
STR R2, R2, #0
LEA R0, HELLO
TRAP x22 ; PUTS
TRAP x25 ; HALT
NEGENTER .FILL xFFF6 ; -x0A
PROMPT .STRINGZ “Please enter your name: “
HELLO.STRINGZ “Hello, “
.BLKW #25
.END
1.) “Hello, World” Write, an assembler program that take a store String that contains “Hello, World”
Explanation / Answer
The fallowing Assembly code will help you to Store String like "“Hello, World”
section .text
global_start ;must be declared for linker (ld)
_start: ;tells linker entry point
mov edx,len ;message length
mov ecx,msg ;message to write
mov ebx,1 ;file descriptor (stdout)
mov eax,4 ;system call number (sys_write)
int 0x80 ;call kernel
mov eax,1 ;system call number (sys_exit)
int 0x80 ;call kernel
section .data
msg db 'Hello, world!', 0xa ;our dear string
len equ $ - msg ;length of our dear string
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