adafruit-mirror/Adafruit_CircuitPython_PIOASM
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Add .fifo directive

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This commit is contained in:
Jeff Epler 2024-09-05 09:05:47 -05:00
parent a8fa218e45
commit 3da0f6cea2
2 changed files with 31 additions and 0 deletions
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19
adafruit_pioasm.py
View file

@ -33,6 +33,7 @@ MOV_DESTINATIONS = ["pins", "x", "y", None, "exec", "pc", "isr", "osr"]
MOV_SOURCES = ["pins", "x", "y", "null", None, "status", "isr", "osr"]
MOV_OPS = [None, "~", "::", None]
SET_DESTINATIONS = ["pins", "x", "y", None, "pindirs", None, None, None]
FIFO_TYPES = {"txrx": 0, "tx": 0, "rx": 0, "txput": 1, "txget": 1, "putget": 1}
class Program: # pylint: disable=too-few-public-methods
@ -59,6 +60,13 @@ class Program: # pylint: disable=too-few-public-methods
wrap_target = None
offset = -1
pio_version = 0
fifo_type = None
def require_version(required_version, instruction):
if pio_version < required_version:
raise RuntimeError(
f"{instruction} requires .pio_version {required_version}"
)
for i, line in enumerate(text_program.split("\n")):
line = line.strip()
@ -72,6 +80,8 @@ class Program: # pylint: disable=too-few-public-methods
program_name = line.split()[1]
elif line.startswith(".pio_version"):
pio_version = int(line.split()[1], 0)
if not 0 <= pio_version <= 1:
raise RuntimeError(f"Invalid .pio_version {pio_version}")
elif line.startswith(".origin"):
offset = int(line.split()[1], 0)
elif line.startswith(".wrap_target"):
@ -83,6 +93,12 @@ class Program: # pylint: disable=too-few-public-methods
elif line.startswith(".side_set"):
sideset_count = int(line.split()[1], 0)
sideset_enable = "opt" in line
elif line.startswith(".fifo"):
fifo_type = line.split()[1]
required_version = FIFO_TYPES.get(fifo_type)
if required_version is None:
raise RuntimeError(f"Invalid fifo type {fifo_type}")
require_version(required_version, line)
elif line.endswith(":"):
label = line[:-1]
if label in labels:
@ -262,6 +278,9 @@ class Program: # pylint: disable=too-few-public-methods
if wrap_target is not None:
self.pio_kwargs["wrap_target"] = wrap_target
if FIFO_TYPES.get(fifo_type):
self.pio_kwargs["fifo_type"] = fifo_type
self.assembled = array.array("H", assembled)
self.debuginfo = (linemap, text_program) if build_debuginfo else None

12
tests/test_version.py
View file

@ -13,3 +13,15 @@ def test_version() -> None:
assert_pio_kwargs(".pio_version 0", sideset_enable=0)
assert_pio_kwargs(".pio_version 1", pio_version=1, sideset_enable=0)
assert_assembly_fails(".pio_version muffin", errtype=ValueError)
assert_assembly_fails(".pio_version -1")
def test_fifo() -> None:
assert_pio_kwargs(".fifo txrx", sideset_enable=0)
assert_assembly_fails(".fifo txput")
assert_pio_kwargs(
".pio_version 1\n.fifo txput",
pio_version=1,
sideset_enable=0,
fifo_type="txput",
)