For the fa one its easier just to do this...
Code:
ldr r0, text
ldr r1, slot
ldrh r3, word
ldrh r5, done
ldrh r4, item
ldrh r2, [r0]
cmp r2, r3
bxne lr
strh r5, [r0]
strh r4, [r1]
bx lr

text:
.long 0x22AF136 
slot:
.long 0x21D88FE
word:
.ascii "fa"
done:
.ascii "ok"
item:
.short 0x14FD
Same goes for the other one, well sorta :\