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#!/usr/bin/env python
import sys
if len(sys.argv) == 3:
numfiles = int(sys.argv[1])
tablesz = int(sys.argv[2])
filenum = numfiles+1
else:
filenum = int(sys.argv[1])
numfiles = int(sys.argv[2])
tablesz = int(sys.argv[3])
match = {}
mask = {}
seen = {}
for line in sys.stdin:
(name, mtch, msk) = line.split('(')[1].split(')')[0].split(',')
match[name] = int(mtch,16)
mask[name] = int(msk,16)
redundant = {}
for name in match.iterkeys():
if (mask[name] & (tablesz-1)) == mask[name]:
for i in range(match[name]+1, tablesz):
if (i & mask[name]) == match[name]:
redundant[i] = match[name]
illegal = -1
for i in range(0, tablesz):
used = 0
for name in match.iterkeys():
if match[name] % tablesz == (i & mask[name]):
used = 1
if not used and illegal == -1:
illegal = i
elif not used:
redundant[i] = illegal
if filenum == numfiles:
print '#include "processor.h"'
print 'const insn_func_t processor_t::dispatch_table[%d] = {' % (2*tablesz)
for xl in [32, 64]:
for i in range(0, tablesz):
func = i
if i in redundant:
func = redundant[i]
print ' &processor_t::insn_func_%d_%d,' % (xl, func)
print '};'
if filenum == numfiles+1:
print '#define get_insn_func(insn, sr) \\'
print ' processor_t::dispatch_table[((((sr) & SR_S) ? (sr & SR_S64) : (SR_U64)) ? %d : 0) + ((insn).bits %% %d)]' % (tablesz, tablesz)
print 'static const insn_func_t dispatch_table[%d];' % (2*tablesz)
for i in range(0, tablesz):
if i not in redundant:
print 'reg_t insn_func_32_%d(insn_t insn, reg_t reg);' % i
print 'reg_t insn_func_64_%d(insn_t insn, reg_t reg);' % i
sys.exit(0)
print '#include "insn_header.h"'
for i in range(0, tablesz):
for xl in [32, 64]:
if i % numfiles != filenum or i in redundant:
continue
print 'reg_t processor_t::insn_func_%d_%d(insn_t insn, reg_t pc)' % (xl, i)
print '{'
for name in match.iterkeys():
if match[name] % tablesz == (i & mask[name]):
print ' if((insn.bits & 0x%x) == 0x%x)' % (mask[name] & ~(tablesz-1), \
match[name] & ~(tablesz-1))
print ' {'
print ' int xprlen = %d;' % xl
print ' reg_t npc = sext_xprlen(pc + insn_length(0x%x));' % match[name]
print ' #include "insns/%s.h"' % name
print ' return npc;'
print ' }'
print ' else',
print ' throw trap_illegal_instruction;'
print '}\n'
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