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>
162 lines
1.8 KiB
Python
162 lines
1.8 KiB
Python
# test branch instructions
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@micropython.asm_rv32
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def tbeq(a0):
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mv(a1, a0)
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li(a0, 10)
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li(a2, 1)
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beq(a1, a2, end)
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li(a0, 20)
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li(a2, 2)
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beq(a1, a2, end)
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li(a0, 30)
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li(a2, 3)
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beq(a1, a2, end)
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li(a0, 0)
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label(end)
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print(tbeq(0))
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print(tbeq(1))
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print(tbeq(2))
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print(tbeq(3))
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@micropython.asm_rv32
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def tbne(a0):
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mv(a1, a0)
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li(a0, 10)
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li(a2, 1)
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bne(a1, a2, end)
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li(a0, 20)
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li(a2, 2)
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bne(a1, a2, end)
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li(a0, 30)
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li(a2, 3)
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bne(a1, a2, end)
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li(a0, 0)
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label(end)
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print(tbne(0))
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print(tbne(1))
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print(tbne(2))
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print(tbne(3))
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@micropython.asm_rv32
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def tbgeu(a0):
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mv(a1, a0)
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li(a0, 1)
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li(a2, 2)
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bgeu(a1, a2, end)
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li(a0, 0)
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label(end)
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print(tbgeu(0))
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print(tbgeu(1))
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print(tbgeu(2))
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print(tbgeu(3))
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@micropython.asm_rv32
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def tbltu(a0):
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mv(a1, a0)
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li(a0, 1)
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li(a2, 2)
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bltu(a1, a2, end)
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li(a0, 0)
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label(end)
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print(tbltu(0))
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print(tbltu(1))
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print(tbltu(2))
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print(tbltu(3))
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@micropython.asm_rv32
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def tbge(a0):
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mv(a1, a0)
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li(a0, 1)
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li(a2, -2)
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bge(a1, a2, end)
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li(a0, 0)
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label(end)
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print(tbge(-3))
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print(tbge(-2))
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print(tbge(-1))
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print(tbge(0))
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@micropython.asm_rv32
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def tblt(a0):
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mv(a1, a0)
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li(a0, 1)
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li(a2, -2)
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blt(a1, a2, end)
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li(a0, 0)
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label(end)
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print(tblt(-3))
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print(tblt(-2))
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print(tblt(-1))
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print(tblt(0))
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@micropython.asm_rv32
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def tcbeqz(a0):
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mv(a1, a0)
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li(a0, 1)
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c_beqz(a1, end)
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li(a0, 0)
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label(end)
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print(tcbeqz(0))
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print(tcbeqz(1))
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print(tcbeqz(2))
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print(tcbeqz(3))
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@micropython.asm_rv32
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def tcbnez(a0):
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mv(a1, a0)
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li(a0, 1)
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c_bnez(a1, end)
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li(a0, 0)
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label(end)
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print(tcbnez(0))
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print(tcbnez(1))
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print(tcbnez(2))
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print(tcbnez(3))
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