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reggen-ng: add support for floating instances and nochild flag

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Change-Id: I790149587b622f95f575964cd29caab4a0cff6d4
This commit is contained in:
Aidan MacDonald 2025-01-27 01:00:41 +00:00 • committed by Solomon Peachy
parent bcee6318f0
commit 89a9b5cf39
1 changed files with 33 additions and 7 deletions
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40
utils/reggen-ng/reggen-ng.py
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@ -73,11 +73,14 @@ class Node:
return node return node
class Instance: class Instance:
def __init__(self, name, addr, stride=None, count=None): def __init__(self, name, addr=None, stride=None, count=None,
floating=False, nochild=False):
self.name = name self.name = name
self.address = addr self.address = addr
self.stride = stride self.stride = stride
self.count = count self.count = count
self.floating = floating
self.nochild = nochild
def gen(self): def gen(self):
node = E("instance", E("name", self.name)) node = E("instance", E("name", self.name))
@ -88,9 +91,15 @@ class Instance:
E("count", self.count), E("count", self.count),
E("base", self.address), E("base", self.address),
E("stride", self.stride))) E("stride", self.stride)))
else: elif self.address is not None:
node.append(E("address", self.address)) node.append(E("address", self.address))
if self.floating:
node.append(E("floating", "1"))
if self.nochild:
node.append(E("nochild", "1"))
return node return node
class Field: class Field:
@ -262,19 +271,36 @@ class Parser:
def parse_instance(self, default_name): def parse_instance(self, default_name):
words = self.parse_wordline(False)[0] words = self.parse_wordline(False)[0]
is_floating = False
is_nochild = False
if len(words) == 1: while len(words) > 0:
if words[0] == 'floating':
is_floating = True
elif words[0] == 'nochild':
is_nochild = True
else:
break
words = words[1:]
if is_floating:
if len(words) != 0:
self.err('malformed instance statement')
return Instance(default_name, floating=True)
elif len(words) == 1:
# instance ADDR # instance ADDR
return Instance(default_name, words[0]) return Instance(default_name, words[0], nochild=is_nochild)
elif len(words) == 2: elif len(words) == 2:
# instance NAME ADDR # instance NAME ADDR
return Instance(words[0], words[1]) return Instance(words[0], words[1], nochild=is_nochild)
elif len(words) == 3: elif len(words) == 3:
# instance ADDR STRIDE COUNT # instance ADDR STRIDE COUNT
return Instance(default_name, words[0], words[1], words[2]) return Instance(default_name, words[0], words[1], words[2],
nochild=is_nochild)
elif len(words) == 4: elif len(words) == 4:
# instance NAME ADDR STRIDE COUNT # instance NAME ADDR STRIDE COUNT
return Instance(words[0], words[1], words[2], words[3]) return Instance(words[0], words[1], words[2], words[3],
nochild=is_nochild)
else: else:
self.err('malformed instance statement') self.err('malformed instance statement')