tests/call-save.data

-- asm
mov r6, 0x0001
mov r7, 0x0020
mov r8, 0x0300
mov r9, 0x4000
call 2
mov r0, 0
or r0, r6
or r0, r7
or r0, r8
or r0, r9
exit
-- result
0x4321
-- no register offset
call instruction