bslathi19/PeakRDL-BusDecoder
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apb4 if working?

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This commit is contained in:
Arnav Sacheti
2025-10-20 22:09:25 -07:00
parent f956232a62
commit 395f584f52
9 changed files with 106 additions and 57 deletions
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22
src/peakrdl_busdecoder/cpuif/fanin_gen.py
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@@ -4,9 +4,10 @@ from typing import TYPE_CHECKING
from systemrdl.node import AddressableNode
from systemrdl.walker import WalkerAction
from ..body import Body, CombinationalBody, ForLoopBody
from ..body import Body, CombinationalBody, ForLoopBody, IfBody
from ..design_state import DesignState
from ..listener import BusDecoderListener
from ..utils import get_indexed_path
if TYPE_CHECKING:
from .base_cpuif import BaseCpuif
@@ -18,7 +19,10 @@ class FaninGenerator(BusDecoderListener):
self._cpuif = cpuif
self._stack: deque[Body] = deque()
self._stack.append(CombinationalBody())
cb = CombinationalBody()
cb += cpuif.fanin()
cb += cpuif.readback()
self._stack.append(cb)
def enter_AddressableComponent(self, node: AddressableNode) -> WalkerAction | None:
action = super().enter_AddressableComponent(node)
@@ -32,7 +36,19 @@ class FaninGenerator(BusDecoderListener):
)
self._stack.append(fb)
self._stack[-1] += self._cpuif.fanin(node)
if action == WalkerAction.Continue:
ifb = IfBody()
with ifb.cm(
f"cpuif_rd_sel.{get_indexed_path(self._cpuif.exp.ds.top_node, node)} || cpuif_wr_sel.{get_indexed_path(self._cpuif.exp.ds.top_node, node)}"
) as b:
b += self._cpuif.fanin(node)
self._stack[-1] += ifb
ifb = IfBody()
with ifb.cm(f"cpuif_rd_sel.{get_indexed_path(self._cpuif.exp.ds.top_node, node)}") as b:
b += self._cpuif.readback(node)
self._stack[-1] += ifb
return action
def exit_AddressableComponent(self, node: AddressableNode) -> None: