def _gen_generic_getter(self):
''' for xed's internal usage (printing) we need to be able to
get an operand based on its index.
generating here a switch/case over the operand index to call the
correct getter function '''
inst = 'd'
fname = 'xed3_get_generic_operand'
ret_arg = 'ret_arg'
fo = codegen.function_object_t(fname,
return_type='void',
static=False,
inline=False,
dll_export=True)
fo.add_arg('const xed_decoded_inst_t* %s' % inst)
fo.add_arg('xed_operand_enum_t operand')
fo.add_arg('void* %s' % ret_arg)
switch_gen = codegen.c_switch_generator_t('operand', fo)
op_names = sorted(self.operand_fields.keys())
for op in op_names:
switch_key = "XED_OPERAND_%s" % op
ctype = self.get_ctype(op)
func_getter = "%s(d)" % get_op_getter_fn(op)
code = "*((%s*)%s)=%s;" % (ctype, ret_arg, func_getter)
switch_gen.add_case(switch_key, [code])
switch_gen.add_default(['xed_assert(0);'])
switch_gen.finish()
return fo
def _gen_generic_setter(self):
''' generating a switch/case over the operand index to call the
correct setter function '''
inst = 'd'
fname = 'xed3_set_generic_operand'
in_value = 'val'
fo = codegen.function_object_t(fname,
return_type='void',
static=False,
inline=False,
dll_export=True)
fo.add_arg('xed_decoded_inst_t* %s' % inst)
fo.add_arg('xed_operand_enum_t operand')
fo.add_arg('xed_uint32_t %s' % in_value)
switch_gen = codegen.c_switch_generator_t('operand', fo)
op_names = sorted(self.operand_fields.keys())
for op in op_names:
switch_key = "XED_OPERAND_%s" % op
ctype = self.get_ctype(op)
func_setter = get_op_setter_fn(op)
code = "%s(%s,(%s)%s);" % (func_setter, inst, ctype, in_value)
switch_gen.add_case(switch_key, [code])
switch_gen.add_default(['xed_assert(0);'])
switch_gen.finish()
return fo
def _emit_function(fe, isa_sets, name):
fo = codegen.function_object_t('xed_classify_{}'.format(name))
fo.add_arg('const xed_decoded_inst_t* d')
fo.add_code_eol(
' const xed_isa_set_enum_t isa_set = xed_decoded_inst_get_isa_set(d)'
)
# FIXME: 2017-07-14 optimization: could use a static array for faster checking, smaller code
switch = codegen.c_switch_generator_t('isa_set', fo)
for c in isa_sets:
switch.add_case('XED_ISA_SET_{}'.format(c.upper()), [], do_break=False)
if len(isa_sets) > 0:
switch.add('return 1;')
switch.add_default(['return 0;'], do_break=False)
switch.finish()
fo.emit_file_emitter(fe)