d7481e71ba
* Initial plan * Fix max_decode_depth to properly control decoder hierarchy and port generation Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com> * Fix test that relied on old depth behavior Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com> * Update documentation for max_decode_depth parameter Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com> * fix format * Add variable_depth RDL file and smoke tests for max_decode_depth parameter Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com> * Add variable depth tests for APB3 and AXI4-Lite CPUIFs Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com> * fix * fix * bump --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com>
69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
from collections import deque
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from systemrdl.node import AddressableNode
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from systemrdl.walker import WalkerAction
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from .body import StructBody
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from .design_state import DesignState
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from .identifier_filter import kw_filter as kwf
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from .listener import BusDecoderListener
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class StructGenerator(BusDecoderListener):
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def __init__(
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self,
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ds: DesignState,
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) -> None:
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super().__init__(ds)
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self._stack: list[StructBody] = [StructBody("cpuif_sel_t", True, False)]
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self._struct_defs: list[StructBody] = []
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self._created_struct_stack: deque[bool] = deque() # Track if we created a struct for each node
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def enter_AddressableComponent(self, node: AddressableNode) -> WalkerAction | None:
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action = super().enter_AddressableComponent(node)
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skip = action == WalkerAction.SkipDescendants
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# Only create nested struct if we're not skipping and node has addressable children
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has_addressable_children = any(isinstance(child, AddressableNode) for child in node.children())
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if has_addressable_children and not skip:
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# Push new body onto stack
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body = StructBody(f"cpuif_sel_{node.inst_name}_t", True, False)
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self._stack.append(body)
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self._created_struct_stack.append(True)
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else:
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self._created_struct_stack.append(False)
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return action
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def exit_AddressableComponent(self, node: AddressableNode) -> None:
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type = "logic"
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# Pop the created_struct flag
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created_struct = self._created_struct_stack.pop()
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# Only pop struct body if we created one
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if created_struct:
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body = self._stack.pop()
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if body:
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self._struct_defs.append(body)
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type = body.name
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name = kwf(node.inst_name)
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if node.array_dimensions:
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for dim in node.array_dimensions:
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name = f"{name}[{dim}]"
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self._stack[-1] += f"{type} {name};"
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super().exit_AddressableComponent(node)
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def __str__(self) -> str:
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if "logic cpuif_err;" not in self._stack[-1].lines:
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self._stack[-1] += "logic cpuif_err;"
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bodies = [str(body) for body in self._struct_defs]
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bodies.append(str(self._stack[-1]))
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return "\n".join(bodies)
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