1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
#!/usr/bin/env python3
##
## Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, see <http://www.gnu.org/licenses/>.
##
import sys
import re
import string
import hex_common
##
## Generate data for printing each instruction (format string + operands)
##
def regprinter(m):
str = m.group(1)
str += ":".join(["%d"]*len(m.group(2)))
str += m.group(3)
if ('S' in m.group(1)) and (len(m.group(2)) == 1):
str += "/%s"
elif ('C' in m.group(1)) and (len(m.group(2)) == 1):
str += "/%s"
return str
def spacify(s):
# Regular expression that matches any operator that contains '=' character:
opswithequal_re = '[-+^&|!<>=]?='
# Regular expression that matches any assignment operator.
assignment_re = '[-+^&|]?='
# Out of the operators that contain the = sign, if the operator is also an
# assignment, spaces will be added around it, unless it's enclosed within
# parentheses, or spaces are already present.
equals = re.compile(opswithequal_re)
assign = re.compile(assignment_re)
slen = len(s)
paren_count = {}
i = 0
pc = 0
while i < slen:
c = s[i]
if c == '(':
pc += 1
elif c == ')':
pc -= 1
paren_count[i] = pc
i += 1
# Iterate over all operators that contain the equal sign. If any
# match is also an assignment operator, add spaces around it if
# the parenthesis count is 0.
pos = 0
out = []
for m in equals.finditer(s):
ms = m.start()
me = m.end()
# t is the string that matched opswithequal_re.
t = m.string[ms:me]
out += s[pos:ms]
pos = me
if paren_count[ms] == 0:
# Check if the entire string t is an assignment.
am = assign.match(t)
if am and len(am.group(0)) == me-ms:
# Don't add spaces if they are already there.
if ms > 0 and s[ms-1] != ' ':
out.append(' ')
out += t
if me < slen and s[me] != ' ':
out.append(' ')
continue
# If this is not an assignment, just append it to the output
# string.
out += t
# Append the remaining part of the string.
out += s[pos:len(s)]
return ''.join(out)
def main():
hex_common.read_semantics_file(sys.argv[1])
hex_common.read_attribs_file(sys.argv[2])
immext_casere = re.compile(r'IMMEXT\(([A-Za-z])')
with open(sys.argv[3], 'w') as f:
for tag in hex_common.tags:
if not hex_common.behdict[tag]: continue
extendable_upper_imm = False
extendable_lower_imm = False
m = immext_casere.search(hex_common.semdict[tag])
if m:
if m.group(1).isupper():
extendable_upper_imm = True
else:
extendable_lower_imm = True
beh = hex_common.behdict[tag]
beh = hex_common.regre.sub(regprinter,beh)
beh = hex_common.absimmre.sub(r"#%s0x%x",beh)
beh = hex_common.relimmre.sub(r"PC+%s%d",beh)
beh = spacify(beh)
# Print out a literal "%s" at the end, used to match empty string
# so C won't complain at us
if ("A_VECX" in hex_common.attribdict[tag]):
macname = "DEF_VECX_PRINTINFO"
else: macname = "DEF_PRINTINFO"
f.write('%s(%s,"%s%%s"' % (macname,tag,beh))
regs_or_imms = \
hex_common.reg_or_immre.findall(hex_common.behdict[tag])
ri = 0
seenregs = {}
for allregs,a,b,c,d,allimm,immlett,bits,immshift in regs_or_imms:
if a:
#register
if b in seenregs:
regno = seenregs[b]
else:
regno = ri
if len(b) == 1:
f.write(', insn->regno[%d]' % regno)
if 'S' in a:
f.write(', sreg2str(insn->regno[%d])' % regno)
elif 'C' in a:
f.write(', creg2str(insn->regno[%d])' % regno)
elif len(b) == 2:
f.write(', insn->regno[%d] + 1, insn->regno[%d]' % \
(regno,regno))
else:
print("Put some stuff to handle quads here")
if b not in seenregs:
seenregs[b] = ri
ri += 1
else:
#immediate
if (immlett.isupper()):
if extendable_upper_imm:
if immlett in 'rR':
f.write(',insn->extension_valid?"##":""')
else:
f.write(',insn->extension_valid?"#":""')
else:
f.write(',""')
ii = 1
else:
if extendable_lower_imm:
if immlett in 'rR':
f.write(',insn->extension_valid?"##":""')
else:
f.write(',insn->extension_valid?"#":""')
else:
f.write(',""')
ii = 0
f.write(', insn->immed[%d]' % ii)
# append empty string so there is at least one more arg
f.write(',"")\n')
if __name__ == "__main__":
main()
|
