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https://github.com/micropython/micropython.git
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268acb714d
This commit adds support for writing inline assembler functions when targeting a RV32IMC processor. Given that this takes up a bit of rodata space due to its large instruction decoding table and its extensive error messages, it is enabled by default only on offline targets such as mpy-cross and the qemu port. Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
50 lines
562 B
Python
50 lines
562 B
Python
# test constants in assembler
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@micropython.asm_rv32
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def c1():
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li(a0, 0xFFFFFFFF)
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li(a1, 0xF0000000)
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sub(a0, a0, a1)
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print(hex(c1()))
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@micropython.asm_rv32
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def c2():
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lui(a0, 0x12345)
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li(a1, 0x678)
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add(a0, a0, a1)
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print(hex(c2()))
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@micropython.asm_rv32
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def c3() -> uint:
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lui(a0, 0)
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addi(a0, a0, 0x7FF)
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print(hex(c3()))
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@micropython.asm_rv32
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def c4() -> uint:
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lui(a0, 0)
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addi(a0, a0, -1)
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print(hex(c4()))
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@micropython.asm_rv32
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def c5():
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c_lui(a0, 1)
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c_li(a1, 1)
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c_add(a0, a1)
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print(hex(c5()))
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