test add-disp

addd r0, 2(r2)

where
r2 holds frame pointer at &STACK
2  is the offset of a local variable no. 2  LV2
LV2 initially 8
r0 initially 1

.org 0
ld ONE r0		0 0 0 21
ld FP r2		1 0 2 20
addd r0, 2(r2)		2 7 7 0 2 2
trap print		3 7 8 1
trap stop		4 7 8 0

.data 20
FP 22			20 22
ONE 1			21 1
STACK 0			22 0
LV1 0			23 0
LV2 8			24 8
