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Diffstat (limited to 'docs/reference/asm_thumb2_mov.rst')
| -rw-r--r-- | docs/reference/asm_thumb2_mov.rst | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/docs/reference/asm_thumb2_mov.rst b/docs/reference/asm_thumb2_mov.rst deleted file mode 100644 index 900bf957b..000000000 --- a/docs/reference/asm_thumb2_mov.rst +++ /dev/null @@ -1,27 +0,0 @@ -Register move instructions -========================== - -Document conventions --------------------- - -Notation: ``Rd, Rn`` denote ARM registers R0-R15. ``immN`` denotes an immediate -value having a width of N bits. These instructions affect the condition flags. - -Register moves --------------- - -Where immediate values are used, these are zero-extended to 32 bits. Thus -``mov(R0, 0xff)`` will set R0 to 255. - -* mov(Rd, imm8) ``Rd = imm8`` -* mov(Rd, Rn) ``Rd = Rn`` -* movw(Rd, imm16) ``Rd = imm16`` -* movt(Rd, imm16) ``Rd = (Rd & 0xffff) | (imm16 << 16)`` - -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, imm32) ``Rd = imm32`` - -movwt is a pseudo-instruction: the MicroPython assembler emits a ``movw`` followed -by a ``movt`` to move a 32-bit value into Rd. |