Jeff Epler
5429dc1f59
Closes: #30 (though I don't know what octal syntax is accepted by official pioasm, we will accept python-style 0o567 not C-style 0567)
161 lines
6.3 KiB
Python
161 lines
6.3 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 AssembleChecks(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, match=None, errtype=RuntimeError):
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if match:
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self.assertRaisesRegex(errtype, match, adafruit_pioasm.assemble, source)
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else:
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self.assertRaises(errtype, adafruit_pioasm.assemble, source)
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def assertPioKwargs(self, source, **kw):
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program = adafruit_pioasm.Program(source)
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self.assertEqual(kw, program.pio_kwargs)
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class TestNop(AssembleChecks):
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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("nop [31]", [0b101_11111_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 [15]", [0b101_11111_010_00_010])
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def testSidesetOpt(self):
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self.assertAssemblesTo(".side_set 1 opt\nnop side 1", [0b101_11000_010_00_010])
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self.assertAssemblesTo(".side_set 1 opt\nnop side 0", [0b101_10000_010_00_010])
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self.assertAssemblesTo(
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".side_set 1 opt\nnop side 0 [1]", [0b101_10001_010_00_010]
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)
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self.assertAssemblesTo(".side_set 1 opt\nnop [1]", [0b101_00001_010_00_010])
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self.assertAssemblesTo(".side_set 1 opt\nnop [7]", [0b101_00111_010_00_010])
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self.assertAssemblesTo(
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".side_set 1 opt\nnop side 1 [1]", [0b101_11001_010_00_010]
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)
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self.assertAssemblesTo(
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".side_set 1 opt\nnop side 0 [7]", [0b101_10111_010_00_010]
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)
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def testSet(self):
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# non happy path
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self.assertAssemblyFails(
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"set isr, 1", match="Invalid set destination 'isr'", errtype=ValueError
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)
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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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# non happy path
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self.assertAssemblyFails(
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"jmp x--., l\nl:", match="Invalid jmp condition 'x--.'", errtype=ValueError
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)
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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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def testLimits(self):
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self.assertAssemblyFails(".side_set 1\nnop side 2")
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self.assertAssemblyFails(".side_set 1\nnop side 2 [1]")
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self.assertAssemblyFails("nop [32]")
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self.assertAssemblyFails(".side_set 1\nnop side 0 [16]")
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self.assertAssemblyFails(".side_set 1 opt\nnop side 0 [8]")
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def testCls(self):
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self.assertPioKwargs("", sideset_enable=False)
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self.assertPioKwargs(".side_set 1", sideset_pin_count=1, sideset_enable=False)
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self.assertPioKwargs(
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".side_set 3 opt", sideset_pin_count=3, sideset_enable=True
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)
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class TestMov(AssembleChecks):
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def testMovNonHappy(self):
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# non happy path
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self.assertAssemblyFails(
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"mov x, blah", match="Invalid mov source 'blah'", errtype=ValueError
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)
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def testMovInvert(self):
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# test moving and inverting
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self.assertAssemblesTo("mov x, ~ x", [0b101_00000_001_01_001])
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self.assertAssemblesTo("mov x, ~x", [0b101_00000_001_01_001])
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self.assertAssemblesTo("mov x, !x", [0b101_00000_001_01_001])
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def testMovReverse(self):
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# test moving and reversing bits
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self.assertAssemblesTo("mov x, :: x", [0b101_00000_001_10_001])
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self.assertAssemblesTo("mov x, ::x", [0b101_00000_001_10_001])
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class TestWrap(AssembleChecks):
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def testWrap(self):
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self.assertAssemblyFails(".wrap")
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self.assertPioKwargs(
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"nop\n.wrap_target\nnop\nnop\n.wrap",
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sideset_enable=False,
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wrap=2,
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wrap_target=1,
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)
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class TestRadix(AssembleChecks):
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def testOctal(self):
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self.assertAssemblesTo(".side_set 0o1\nset x, 0o11", [0b111_00000_001_01001])
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def testBinary(self):
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self.assertAssemblesTo(
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".side_set 0b101\nnop side 0b10001", [0b101_10001_010_00_010]
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)
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def testHex(self):
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self.assertAssemblesTo(".side_set 0x0\nnop [0x10]", [0b101_10000_010_00_010])
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