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Update Python gas to yasm converter to remove some poor conversions

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This commit is contained in:
(no author) 2010-02-24 20:41:02 +00:00
parent fbd28cb458
commit 88f3536359
1 changed files with 46 additions and 65 deletions
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111
build.vc9/g2y.py
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@ -4,7 +4,7 @@ from __future__ import print_function
import string, re, os, sys, shutil
debug = False
dot_labels = False
dot_labels = True
is_linux = False
# translate 64 bit registers to 8 bit form
@ -31,16 +31,6 @@ r_x = r'(?:x?mm\d|x?mm1[0-5])|(?:mmx\d|mmx1[0-5])|(?:st\([0-7]\))'
p_rg = r'(?:\s*%(' + r_b + r_w + r_d + r_q + '|' + r_x + r'))'
# regular expression for dis(r1, r2, mul) forms
p_di = r'(?:\s*([-+]?[0-9\+\-]*)(?=\())?' # numeric displacement
p_mu = r'(?:\s*,\s*([1248]))?\s*(?=\))' # multiplier (1, 2, 4, 8)
p_t1 = p_di + r'\s*\(' + p_rg + r'(?:\s*\)|\s*,' + p_rg + p_mu + r'\s*\))'
# regular expression for immediate (numeric, not symbolic)
p_im = r'\s+\`?\$\'?([\+\-]?[0-9]+|0x[a-zA-Z0-9]+)'
# regular expressions for labels
p_l1 = r'([a-zA-Z$_][a-zA-Z0-9\$_]*|\.[0-9]+)'
@ -51,6 +41,16 @@ p_la = p_lr + r'(:)'
p_ri = p_lr + r'\(\%rip\)'
p_jt = r'\s+\.long\s+' + p_lr + r'\-' + p_lr
# regular expression for dis(r1, r2, mul) forms
p_di = r'(?:(?:\s*([-+]?[0-9\+\-]*)(?=\())?' + '|' + p_lr + ')' # numeric displacement
p_mu = r'(?:\s*,\s*([1248]))?\s*(?=\))' # multiplier (1, 2, 4, 8)
p_t1 = p_di + r'\s*\(' + p_rg + r'(?:\s*\)|\s*,' + p_rg + p_mu + r'\s*\))'
# regular expression for immediate (numeric, not symbolic)
p_im = r'\s+\`?\$\'?([\+\-]?[0-9]+|0x[a-zA-Z0-9]+)'
# regular expression for instructions
p_in = r'\s*([a-zA-Z][a-zA-Z0-9]*)'
@ -85,11 +85,19 @@ r_mrz = re.compile(r'([A-Z$_][A-Z0-9$_]*)\s*$')
r_mrf = re.compile(r'([A-Z$_][A-Z0-9$_]*)\s*\(' + r1 + r2 +
r2 + r2 + r2 + r2 + r2 + r2 + r2 + r2 + r'\)')
def lab_ref(v, labels, macros, mac_name):
if mac_name and v in macros[mac_name][3] :
return '%%{0}'.format(macros[mac_name][3][v])
elif dot_labels :
return '.{0}'.format(labels.index(v))
else :
return 'L_{0}'.format(re.sub('\$', '%', v))
def pass_one(code) :
labels = []
for l in code :
m = m_la.search(l)
if m :
if m and m.group(1):
labels += [m.group(1)]
return labels
@ -128,20 +136,25 @@ def pass_two(code, labels) :
return mac_dict
def proc_m(m, i, j) :
def proc_m(m, i, j, labels, macros, mac_name) :
v = list(m.groups())
n = len(v)
if n <= i :
return ([], '')
ss = (v[i] if not v[i] or v[i][0] in '+-' else '+' + v[i]) + ']'
if n > i + 3 and i + 3 < j and v[i + 3] :
ss = ('' if not v[i + 3] else '*' + v[i + 3]) + ss
if n > i + 2 and i + 2 < j and v[i + 2] :
ss = '+' + v[i + 2] + ss
if n > i + 1 and i + 1 < j and v[i + 1] :
ss = v[i + 1] + ss
return (v[ 0 : i ] + v[ j : ], '[' + ss)
if v[i + 3] == 'rip' and v[i + 1] and v[i + 1] in labels:
ss = 'rel ' + lab_ref(v[i + 1], labels, macros, mac_name) + ']'
return (v[ 0 : i] + v[ j + 2 : ], '[' + ss)
else:
ss = (v[i] if not v[i] or v[i][0] in '+-' else '+' + v[i]) + ']'
i += 2
j += 2
if n > i + 3 and i + 3 < j and v[i + 3] :
ss = ('' if not v[i + 3] else '*' + v[i + 3]) + ss
if n > i + 2 and i + 2 < j and v[i + 2] :
ss = '+' + v[i + 2] + ss
if n > i + 1 and i + 1 < j and v[i + 1] :
ss = v[i + 1] + ss
return (v[ 0 : i - 2] + v[ j : ], '[' + ss)
def pass_three(code, labels, macros, level) :
@ -152,7 +165,7 @@ def pass_three(code, labels, macros, level) :
# labels
m = m_la.search(l)
lp = '\n'
if m :
if m and m.group(1):
l = l[ l.find(':') + 1 : -1 ]
if mac_name :
if m.group(1) in macros[mac_name][3] :
@ -215,7 +228,7 @@ def pass_three(code, labels, macros, level) :
if m :
if debug :
print(l, end = '')
v, s = proc_m(m, 2, 6)
v, s = proc_m(m, 2, 6, labels, macros, mac_name)
lo += [lp + '\t{0[0]:7s} {1}, {0[1]}'.format(v, s)]
continue
@ -224,7 +237,7 @@ def pass_three(code, labels, macros, level) :
if m :
if debug :
print(l, end = '')
v, s = proc_m(m, 1, 5)
v, s = proc_m(m, 1, 5, labels, macros, mac_name)
lo += [lp + '\t{0[0]:7s} {0[1]}, {1}'.format(v, s)]
continue
@ -233,7 +246,7 @@ def pass_three(code, labels, macros, level) :
if m :
if debug :
print(l, end = '')
v, s = proc_m(m, 1, 5)
v, s = proc_m(m, 1, 5, labels, macros, mac_name)
lo += [lp + '\t{0[0]:7s} {1}'.format(v, s)]
continue
@ -242,7 +255,7 @@ def pass_three(code, labels, macros, level) :
if m :
if debug :
print(l, end = '')
v, s = proc_m(m, 2, 6)
v, s = proc_m(m, 2, 6, labels, macros, mac_name)
lo += [lp + '\t{0[0]:7s} {1}, {0[1]}'.format(v, s)]
continue
@ -298,24 +311,8 @@ def pass_three(code, labels, macros, level) :
if v[1] in labels :
if debug :
print(l, end = '')
if mac_name and v[0] in macros[mac_name][3] :
ii = macros[mac_name][3][v[0]]
st1 = '%%{0}'.format(ii)
elif dot_labels :
ii = labels.index(v[0])
st1 = '.{0}'.format(ii)
else :
lab = re.sub('\$', '%', v[0])
st1 = 'L_{0}'.format(lab)
if mac_name and v[1] in macros[mac_name][3] :
ii = macros[mac_name][3][v[1]]
st2 = '%%{1}'.format(ii)
elif dot_labels :
ii = labels.index(v[1])
st2 = '.{1}'.format(ii)
else :
lab = re.sub('\$', '%', v[1])
st2 = 'L_{0}'.format(lab)
st1 = lab_ref(v[0], labels, macros, mac_name)
st2 = lab_ref(v[1], labels, macros, mac_name)
lo += [lp + '\tdd ' + st1 + ' - ' + st2]
continue
@ -326,16 +323,8 @@ def pass_three(code, labels, macros, level) :
if v[1] in labels :
if debug :
print(l, end = '')
if mac_name and v[1] in macros[mac_name][3] :
ii = macros[mac_name][3][v[1]]
lo += [lp + '\t{0[0]:7s} %%{1}[rip]'.format(v, ii)]
continue
if dot_labels :
ii = labels.index(v[1])
lo += [lp + '\t{0[0]:7s} .{1}[rip]'.format(v, ii)]
else :
lab = re.sub('\$', '%', v[1])
lo += [lp + '\t{0[0]:7s} L_{1}[rip]'.format(v, lab)]
ss = lab_ref(v[1], labels, macros, mac_name)
lo += [lp + '\t{0[0]:7s} {1}[rip]'.format(v, ss)]
continue
# jump label
@ -345,16 +334,8 @@ def pass_three(code, labels, macros, level) :
if v[1] and v[1] in labels :
if debug :
print(l, end = '')
if mac_name and v[1] in macros[mac_name][3] :
ii = macros[mac_name][3][v[1]]
lo += [lp + '\t{0[0]:7s} %%{1}'.format(v, ii)]
continue
if dot_labels :
ii = labels.index(v[1])
lo += [lp + '\t{0[0]:7s} .{1}'.format(v, ii)]
else :
lab = re.sub('\$', '%', v[1])
lo += [lp + '\t{0[0]:7s} L_{1}'.format(v, lab)]
ss = lab_ref(v[1], labels, macros, mac_name)
lo += [lp + '\t{0[0]:7s} {1}'.format(v, ss)]
continue
m = re.search(r'\s*\.byte\s+((?:0x|0X)[0-9a-fA-F]+|[0-9]+)\s*', l)