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        @ We do not bother testing simple cases, e.g. immediates where

        @ registers belong, trailing junk at end of line.

        .text

x:

        @ pc not allowed

        bfc     pc,#0,#1

        bfi     pc,r0,#0,#1

        movw    pc,#0

        movt    pc,#0

        @ bitfield range limits

        bfc     r0,#0,#0

        bfc     r0,#32,#0

        bfc     r0,#0,#33

        bfc     r0,#33,#1

        bfc     r0,#32,#1

        bfc     r0,#28,#10

        bfi     r0,r1,#0,#0

        bfi     r0,r1,#32,#0

        bfi     r0,r1,#0,#33

        bfi     r0,r1,#33,#1

        bfi     r0,r1,#32,#1

        bfi     r0,r1,#28,#10

        sbfx    r0,r1,#0,#0

        sbfx    r0,r1,#32,#0

        sbfx    r0,r1,#0,#33

        sbfx    r0,r1,#33,#1

        sbfx    r0,r1,#32,#1

        sbfx    r0,r1,#28,#10

        ubfx    r0,r1,#0,#0

        ubfx    r0,r1,#32,#0

        ubfx    r0,r1,#0,#33

        ubfx    r0,r1,#33,#1

        ubfx    r0,r1,#32,#1

        ubfx    r0,r1,#28,#10

        @ bfi accepts only #0 in Rm position

        bfi     r0,#1,#2,#3

        @ mov16 range limits

        movt    r0,#65537

        movw    r0,#65537

        movt    r0,#-1

        movw    r0,#-1

        @ ldsttv4 Rd == Rn (warning)

        ldrht   r0,[r0]

        ldrsbt  r0,[r0]

        ldrsht  r0,[r0]

        strht   r0,[r0]

        @ Bug reported by user.  GAS used to issue an error message

        @ "r15 not allowed here" for these two instructions because

        @ it thought that the "r2" operand was a PC-relative branch

        @ to a label called "r2".

        ldrex   r0, r2

        strex   r1, r0, r2