mirror of
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>
116 lines
1.6 KiB
Python
116 lines
1.6 KiB
Python
@micropython.asm_rv32
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def f1():
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li(a0, 0)
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la(a1, END)
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c_jr(a1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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label(END)
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print(f1())
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@micropython.asm_rv32
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def f2():
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addi(sp, sp, -4)
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c_swsp(ra, 0)
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li(ra, 0)
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li(a0, 0)
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c_jal(END)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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label(END)
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bne(ra, zero, SUCCESS)
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c_addi(a0, 2)
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label(SUCCESS)
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c_lwsp(ra, 0)
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addi(sp, sp, 4)
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print(f2())
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@micropython.asm_rv32
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def f3():
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li(a0, 0)
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c_j(END)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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label(END)
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print(f3())
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@micropython.asm_rv32
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def f4():
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addi(sp, sp, -4)
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c_swsp(ra, 0)
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li(ra, 0)
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li(a0, 0)
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la(a1, END)
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c_jalr(a1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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label(END)
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bne(ra, zero, SUCCESS)
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c_addi(a0, 2)
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label(SUCCESS)
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c_lwsp(ra, 0)
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addi(sp, sp, 4)
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print(f4())
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@micropython.asm_rv32
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def f5():
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li(a0, 0)
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li(a1, 0)
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jal(a1, END)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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label(END)
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bne(a1, zero, SUCCESS)
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c_addi(a0, 2)
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label(SUCCESS)
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print(f5())
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@micropython.asm_rv32
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def f6():
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li(a0, 0)
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la(a1, JUMP)
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li(a2, 0)
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jalr(a2, a1, 10)
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label(JUMP)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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c_addi(a0, 1)
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bne(a2, zero, SUCCESS)
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c_addi(a0, 2)
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label(SUCCESS)
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print(f6())
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