def p_signal_decl(p):
''' signal_decl : WIRE VECTOR IDENTIFIER ';'
| WIRE IDENTIFIER ';'
'''
if len(p)==5:
p[0]=cc.signal(name=p[3],vector=p[2])
else:
p[0]=cc.signal(name=p[2],vector=None)
def p_signal_decl(p):
''' signal_decl : WIRE VECTOR IDENTIFIER ';'
| WIRE IDENTIFIER ';'
'''
if len(p) == 5:
p[0] = cc.signal(name=p[3], vector=p[2])
else:
p[0] = cc.signal(name=p[2], vector=None)
def p_port_decl(p):
'''port_decl : INPUT IDENTIFIER ';'
| INPUT VECTOR IDENTIFIER ';'
| OUTPUT IDENTIFIER ';'
| OUTPUT VECTOR IDENTIFIER ';'
| INOUT IDENTIFIER ';'
| INOUT VECTOR IDENTIFIER ';'
'''
if len(p)==5:
tmp=cc.signal(s_type=p[1],name=p[3],vector=p[2])
p[0]=tmp.signal_2_port()
else:
tmp=cc.signal(s_type=p[1],name=p[2],vector=None)
p[0]=tmp.signal_2_port()
def p_port_decl(p):
'''port_decl : INPUT IDENTIFIER ';'
| INPUT VECTOR IDENTIFIER ';'
| OUTPUT IDENTIFIER ';'
| OUTPUT VECTOR IDENTIFIER ';'
| INOUT IDENTIFIER ';'
| INOUT VECTOR IDENTIFIER ';'
'''
if len(p) == 5:
tmp = cc.signal(s_type=p[1], name=p[3], vector=p[2])
p[0] = tmp.signal_2_port()
else:
tmp = cc.signal(s_type=p[1], name=p[2], vector=None)
p[0] = tmp.signal_2_port()
def p_signal_element(p):
'''signal_element : IDENTIFIER BIT
| IDENTIFIER VECTOR
| IDENTIFIER
'''
if len(p)==3:
p[0]=cc.signal(name=p[1],vector=p[2])
else:
# 匹配，使得连在一起的 ID-VEC：ID[\d+]等够将ID VEC分开
linked_id_vec = re.match("(.+)(\[\d+\])$",p[1])
if linked_id_vec is not None:
iden = linked_id_vec.groups()[0]
vec = linked_id_vec.groups()[1]
p[0] = cc.signal( name = iden ,vector = vec)
else:
p[0]=cc.signal(name=p[1])
def p_signal_element(p):
'''signal_element : IDENTIFIER BIT
| IDENTIFIER VECTOR
| IDENTIFIER
'''
if len(p) == 3:
p[0] = cc.signal(name=p[1], vector=p[2])
else:
# 匹配，使得连在一起的 ID-VEC：ID[\d+]等够将ID VEC分开
linked_id_vec = re.match("(.+)(\[\d+\])$", p[1])
if linked_id_vec is not None:
iden = linked_id_vec.groups()[0]
vec = linked_id_vec.groups()[1]
p[0] = cc.signal(name=iden, vector=vec)
else:
p[0] = cc.signal(name=p[1])
def p_assign_stm(p):
''' assign_stm : ASSIGN signal_element '=' signal_element ';'
| ASSIGN signal_element '=' BIN_NUMBER ';'
'''
if isinstance(p[4],cc.signal):
p[0]=cc.assign("assign",p[2],p[4])
else:
p[0]=cc.assign("assign",p[2],cc.signal(name=p[4]))
def p_assign_stm(p):
''' assign_stm : ASSIGN signal_element '=' signal_element ';'
| ASSIGN signal_element '=' BIN_NUMBER ';'
'''
if isinstance(p[4], cc.signal):
p[0] = cc.assign("assign", p[2], p[4])
else:
p[0] = cc.assign("assign", p[2], cc.signal(name=p[4]))