py/inlinethumb: Remove 30-bit restriction on movwt instruction.

movwt can now move a full 32-bit constant into a register.

1 files changed, 3 insertions, 4 deletions

diff --git a/docs/reference/asm_thumb2_mov.rst b/docs/reference/asm_thumb2_mov.rst
index e42460881..900bf957b 100644
--- a/docs/reference/asm_thumb2_mov.rst
+++ b/docs/reference/asm_thumb2_mov.rst
@@ -21,8 +21,7 @@ Where immediate values are used, these are zero-extended to 32 bits. Thus
 movt writes an immediate value to the top halfword of the destination register.
 It does not affect the contents of the bottom halfword.
 
-* movwt(Rd, imm30) ``Rd = imm30``
+* movwt(Rd, imm32) ``Rd = imm32``
 
-movwt is a pseudo-instruction: the MicroPython assembler emits a ``movw`` and a ``movt``
-to move a zero extended 30 bit value into Rd. Where the full 32 bits are required a
-workround is to use the movw and movt operations.
+movwt is a pseudo-instruction: the MicroPython assembler emits a ``movw`` followed
+by a ``movt`` to move a 32-bit value into Rd.