def memassign(self, ea, sz, val):
self.mem.memassign(ea, sz, val)
- def prep_namespace(self):
- for name in ['SI', 'UI', 'D', 'BD']:
- signal = getattr(self.decoder, name)
- val = yield signal
- self.namespace[name] = SelectableInt(val, bits=signal.width)
+ def prep_namespace(self, formname, op_fields):
+ # TODO: get field names from form in decoder*1* (not decoder2)
+ # decoder2 is hand-created, and decoder1.sigform is auto-generated
+ # from spec
+ # then "yield" fields only from op_fields rather than hard-coded
+ # list, here.
+ fields = self.decoder.sigforms[formname]
+ for name in fields._fields:
+ if name not in ["RA", "RB", "RT"]:
+ sig = getattr(fields, name)
+ val = yield sig
+ self.namespace[name] = SelectableInt(val, sig.width)
def call(self, name):
- yield from self.prep_namespace()
+ # TODO, asmregs is from the spec, e.g. add RT,RA,RB
+ # see http://bugs.libre-riscv.org/show_bug.cgi?id=282
+ fn, read_regs, uninit_regs, write_regs, op_fields, form, asmregs \
+ = self.instrs[name]
+ yield from self.prep_namespace(form, op_fields)
- function, read_regs, uninit_regs, write_regs = self.instrs[name]
input_names = create_args(read_regs | uninit_regs)
print(input_names)
print('reading reg %d' % regnum)
inputs.append(self.gpr(regnum))
print(inputs)
- results = function(self, *inputs)
+ results = fn(self, *inputs)
print(results)
if write_regs:
for name, output in zip(output_names, results):
regnum = yield getattr(self.decoder, name)
print('writing reg %d' % regnum)
- if isinstance(output, int):
- output = SelectableInt(output, 64)
+ if output.bits > 64:
+ output = SelectableInt(output.value, 64)
self.gpr[regnum] = output