69 lines
3 KiB
Python
69 lines
3 KiB
Python
# SPDX-FileCopyrightText: 2021 Jeff Epler, written for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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# pylint: disable=missing-module-docstring,invalid-name,missing-function-docstring,missing-class-docstring
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import pathlib
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import sys
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import unittest
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sys.path.insert(0, str(pathlib.Path(__file__).absolute().parent.parent))
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import adafruit_pioasm # pylint: disable=wrong-import-position
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def nice_opcode(o):
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o = f"{o:016b}"
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return o[:3] + "_" + o[3:8] + "_" + o[8:]
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class TestNop(unittest.TestCase):
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def assertAssemblesTo(self, source, expected):
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actual = adafruit_pioasm.assemble(source)
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expected_bin = [nice_opcode(x) for x in expected]
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actual_bin = [nice_opcode(x) for x in actual]
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self.assertEqual(
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expected_bin,
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actual_bin,
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f"Assembling {source!r}: Expected {expected_bin}, got {actual_bin}",
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)
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def assertAssemblyFails(self, source):
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self.assertRaises(RuntimeError, adafruit_pioasm.assemble, source)
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def testNonsense(self):
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self.assertAssemblyFails("nope")
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def testNop(self):
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self.assertAssemblesTo("nop", [0b101_00000_010_00_010])
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self.assertAssemblesTo(
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"nop\nnop", [0b101_00000_010_00_010, 0b101_00000_010_00_010]
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)
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self.assertAssemblesTo("nop [1]", [0b101_00001_010_00_010])
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self.assertAssemblesTo(".side_set 1\nnop side 1", [0b101_10000_010_00_010])
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self.assertAssemblesTo(".side_set 1\nnop side 1 [1]", [0b101_10001_010_00_010])
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def testJmp(self):
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self.assertAssemblesTo("l:\njmp l", [0b000_00000_000_00000])
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self.assertAssemblesTo("l:\njmp 7", [0b000_00000_000_00111])
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self.assertAssemblesTo("jmp l\nl:", [0b000_00000_000_00001])
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self.assertAssemblesTo("jmp !x, l\nl:", [0b000_00000_001_00001])
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self.assertAssemblesTo("jmp x--, l\nl:", [0b000_00000_010_00001])
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self.assertAssemblesTo("jmp !y, l\nl:", [0b000_00000_011_00001])
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self.assertAssemblesTo("jmp y--, l\nl:", [0b000_00000_100_00001])
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self.assertAssemblesTo("jmp x!=y, l\nl:", [0b000_00000_101_00001])
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self.assertAssemblesTo("jmp pin, l\nl:", [0b000_00000_110_00001])
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self.assertAssemblesTo("jmp !osre, l\nl:", [0b000_00000_111_00001])
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def testWait(self):
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self.assertAssemblesTo("wait 0 gpio 0", [0b001_00000_0_00_00000])
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self.assertAssemblesTo("wait 0 gpio 1", [0b001_00000_0_00_00001])
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self.assertAssemblesTo("wait 1 gpio 2", [0b001_00000_1_00_00010])
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self.assertAssemblesTo("wait 0 pin 0", [0b001_00000_0_01_00000])
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self.assertAssemblesTo("wait 0 pin 1", [0b001_00000_0_01_00001])
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self.assertAssemblesTo("wait 1 pin 2", [0b001_00000_1_01_00010])
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self.assertAssemblesTo("wait 0 irq 0", [0b001_00000_0_10_00000])
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self.assertAssemblesTo("wait 0 irq 0 rel", [0b001_00000_0_10_10000])
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self.assertAssemblesTo("wait 1 irq 0", [0b001_00000_1_10_00000])
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self.assertAssemblesTo("wait 0 irq 1 rel", [0b001_00000_0_10_10001])
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