1 # IEEE Floating Point Adder (Single Precision)
2 # Copyright (C) Jonathan P Dawson 2013
5 from nmigen
import Signal
6 from ieee754
.fpcommon
.fpbase
import Overflow
, FPNumBaseRecord
7 from ieee754
.fpcommon
.getop
import FPPipeContext
11 def __init__(self
, pspec
, e_extra
=False):
12 width
= pspec
['width']
13 self
.z
= FPNumBaseRecord(width
, False, e_extra
)
14 self
.out_do_z
= Signal(reset_less
=True)
15 self
.oz
= Signal(width
, reset_less
=True)
17 self
.ctx
= FPPipeContext(pspec
)
18 self
.muxid
= self
.ctx
.muxid
28 return [self
.z
.eq(i
.z
), self
.out_do_z
.eq(i
.out_do_z
), self
.oz
.eq(i
.oz
),
29 self
.of
.eq(i
.of
), self
.ctx
.eq(i
.ctx
)]