mov r10, 0
mov r11, code
mov r12, data
mov r2, data
mov r0, r2
mov r3, 0
add r0, 255
bump r10
send r10, 0x1000
send r10, 0x200a
jmp checkCode

code:
; This does not support loop nesting
dw "++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>."
dw 0

checkCode:
mov r1, [r11]
cmp r1, '>'
je right
cmp r1, '<'
je left
cmp r1, '+'
je plus
cmp r1, '-'
je subt
cmp r1, '.'
je out
cmp r1, ','
je input
cmp r1, '['
je while
cmp r1, ']'
je check
cmp r1, 0
jz hltt
add r11, 1
jmp checkCode


right:
cmp r0, r12
jne .skip
sub r12, 256
.skip:
add r12, 1
add r11, 1
mov r1, [r11]
cmp r1, '>'
je right
jmp checkCode

left:
cmp r12, r2
jne .skip
add r12, 256
.skip:
sub r12, 1
add r11, 1
mov r1, [r11]
cmp r1, '<'
je left
jmp checkCode

plus:
mov r1, [r12]
add r1, 1
mov [r12], r1
add r11, 1
mov r1, [r11]
cmp r1, '+'
je plus
jmp checkCode

subt:
mov r1, [r12]
sub r1, 1
mov [r12], r1
add r11, 1
mov r1, [r11]
cmp r1, '-'
je subt
jmp checkCode

out:
mov r1, [r12]
add r1, r3
send r10, r1
add r11, 1
mov r1, [r11]
cmp r1, '.'
je out
jmp checkCode

input:
wait r10
js input
bump r10
.loop:
recv r1, r10
jnc .loop
sub r1, r3
mov [r12], r1
add r11, 1
mov r1, [r11]
cmp r1, ','
je input
jmp checkCode

while:
mov r1, [r12]
cmp r1, 0
je .loop
add r11, 1
push r11
jmp checkCode
.loop:
add r11, 1
mov r1, [r11]
.back:
cmp r1, ']'
jne .loop
add r11, 1
jmp checkCode

check:
mov r1, [r12]
cmp r1, 0
je .check
mov r11, [sp]
jmp checkCode
.check:
pop r1
add r11, 1
jmp checkCode

hltt:
hlt
jmp hltt

data:
dw 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
dw 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
dw 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
dw 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
; 256 address space

Here is the assembly file to download:

https://github.com/HuntaBadday/r216-Brainfuck-interpreter