THUMB fails to assemble instructions LDRH and LDRHT

[fdx1601]

Hi, I stumbled into this ...

THUMB assembler fails to assemble these lines:

        LDRH    R0,CONFIG       ; should load 0x5678 into R0
        LDRHT   R1,CONFIG       ; should load 0x1234 into R1

        MOV     PC,LR

        NOP

Gives these errors:

Pass 1...
Error: Unknown operands combo for 'LDRH' at src/foo.asm:11.

and

Pass 1...
Error: Unknown instruction 'LDRHT' at src/foo.asm:12

Assembling with gnu-as it gives the following object code:

   0:	f8bf 0008 	ldrh.w	r0, [pc, #8]	; c <CONFIG>
   4:	f8bf 1004 	ldrh.w	r1, [pc, #4]	; c <CONFIG>
   8:	46f7      	mov	pc, lr
   a:	bf00      	nop

0000000c <CONFIG>:
   c:	12345678 	.word	0x12345678
  10:	00000000 	.word	0x00000000

Regards.

[fdx1601]

Just complementing the ARM Architecture Reference Manual
Thumb-2 Supplement documentation where it says in section 1.5.1:

New T variants of LDR and STR
The ARM LDRH, LDRSB, LDRSH and STRH instructions now have T variants.