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tools/mpy_ld.py: Optimise entry trampoline for x86/x64. #19309

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tools/mpy_ld.py: Optimise entry trampoline for x86/x64. #19309

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7 changes: 6 additions & 1 deletion tools/mpy_ld.py
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Original file line number Diff line number Diff line change
Expand Up @@ -142,7 +142,12 @@ def fit_signed(bits, value):


def asm_jump_x86(entry):
return struct.pack("<BI", 0xE9, entry)
if fit_signed(7, entry):
return struct.pack("Bb", 0xEB, entry)
elif fit_signed(31, entry):
return struct.pack("<Bi", 0xE9, entry)
else:
raise LinkError("large jumps on x86/x64 are not supported")


def asm_jump_thumb(entry):
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