d87b4461ae
Also added more descriptive errors for invalid source/destination values. Fixes https://github.com/adafruit/Adafruit_CircuitPython_PIOASM/issues/44
71 lines
1.8 KiB
Python
71 lines
1.8 KiB
Python
# SPDX-FileCopyrightText: KB Sriram
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#
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# SPDX-License-Identifier: MIT
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"""
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Tests out
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"""
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import pytest
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from pytest_helpers import assert_assembles_to, assert_assembly_fails
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@pytest.mark.parametrize(
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"destination,expected",
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[
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("pins", 0b000),
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("x", 0b001),
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("y", 0b010),
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("null", 0b011),
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("pindirs", 0b100),
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("pc", 0b101),
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("isr", 0b110),
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("exec", 0b111),
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],
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)
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def test_out_destinations(destination: str, expected: int) -> None:
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# delay dst bitcount
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encoding = 0b011_00000_000_10001
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# add in the expected destination
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encoding |= expected << 5
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assert_assembles_to(f"out {destination}, 17", [encoding])
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@pytest.mark.parametrize("delay", [0, 1, 9, 17, 31])
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def test_out_delay(delay: int) -> None:
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# delay dst bitcount
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encoding = 0b011_00000_000_10001
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# add in the expected delay
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encoding |= delay << 8
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assert_assembles_to(f"out pins, 17 [{delay}]", [encoding])
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@pytest.mark.parametrize("bitcount", [1, 9, 17, 32])
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def test_out_bitcount(bitcount: int) -> None:
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# delay dst bitcount
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encoding = 0b011_00000_000_00000
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# add in the expected bitcount. Note that
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# 32 should be encoded as 0, which we do by
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# masking the bitcount with 0x1f
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encoding |= bitcount & 0x1F
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assert_assembles_to(f"out pins, {bitcount}", [encoding])
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def test_out_delay_with_sideset() -> None:
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source = [
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".side_set 2",
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"out pins 17 side 2 [5]",
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]
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assert_assembles_to("\n".join(source), [0b011_10_101_000_10001])
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def test_out_bad_destination():
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assert_assembly_fails(
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"out bad, 17", match="Invalid out destination 'bad'", errtype=ValueError
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)
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def test_out_bad_bitcount():
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assert_assembly_fails(
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"out pins, 0", match="Count out of range", errtype=RuntimeError
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)
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