def get_int_type(val):
if val == 0:
return Uint[1]
elif val > 0:
return Uint[bitw(val)]
else:
return Int[bitw(val)]
def funclut(x: Fixpnumber, *, f, precision=b'x.width', dtype=None):
'''Implement arbitrary 1 input parameter function as Lookup-table for
integers. f is arbitrary function e.g. math.sqrt, precision is a number of
bits the function result will be represented with,
sqrt_lut: x | funclut(f=math.sqrt, precision=4)
'''
din_t = x.dtype
step = 2**(-din_t.fract)
w_din = len(din_t)
def gen_vals_signed():
for i in range(2**w_din):
if i < (1 << (w_din - 1)):
yield f(step * i)
else:
yield f(step * (i - (1 << w_din)))
def gen_vals_unsigned():
for i in range(2**w_din):
yield f(step * i)
def gen_vals():
if din_t.signed:
yield from gen_vals_signed()
else:
yield from gen_vals_unsigned()
if dtype is None:
float_res_list = list(gen_vals())
vmin = min(map(round, float_res_list))
vmax = max(map(round, float_res_list))
if vmin < 0:
dtype = Fixp[bitw(
max(2 * abs(vmin), 2 * (vmax) +
(1 if vmax > 0 else 0))), precision]
else:
dtype = Ufixp[bitw(max(vmax, vmin)), precision]
lut_list = [dtype(v) for v in float_res_list]
else:
lut_list = [dtype(v) for v in gen_vals()]
dout = x >> Uint[w_din] | rom(data=lut_list, dtype=dtype)
return dout
def test_buck_converter():
spice_library = SpiceLibrary(os.path.abspath(os.path.dirname(__file__)))
spice_library['1N4148']
Vin = 20 @ u_V
Vout = 15 @ u_V
Vpulse = 5 @ u_V
ratio = Vout / Vin
clk_freq = 1 @ u_MHz
clk_period = clk_freq.period
sw_freq = 50 @ u_kHz
sw_period = sw_freq.period
sw_period_cnt = int(sw_period / clk_period)
sw_width_cnt = int(sw_period_cnt * (1 - ratio))
w_period = bitw(sw_period_cnt)
def buck_converter(c, ins, outs):
c.include(spice_library['1N4148'])
ins.append(('gate', c.gnd))
outs.append(('output', c.gnd))
Rload = 3 @ u_Ohm
L = 750 @ u_uH
Cout = 0.47 @ u_uF
c.V('input', 'vin', c.gnd, Vin)
c.VCS(name='sw1',
input_plus='gate',
input_minus=c.gnd,
output_minus='vin',
output_plus='sw_out',
model='SW',
initial_state='off')
c.model('SW', 'SW', Ron=1 @ u_mOhm, Roff=100 @ u_MOhm, Vt=1.1 @ u_V)
c.X('D1', '1N4148', c.gnd, 'sw_out')
c.L(1, 'sw_out', 'output', L)
c.R(1, 'output', c.gnd, Rload)
c.C(1, 'output', c.gnd, Cout)
seq = [(sw_period_cnt, sw_width_cnt)] * 1000
din = drv(t=Tuple[Uint[w_period], Uint[w_period]], seq=seq) \
| pulse \
| flatten \
| Float
din = din * int(Vpulse)
dout = din | ngspice(f=buck_converter, init_x=0)
dout | scope
dout | shred
verilate('/pulse')
sim(timeout=4000, check_activity=False)
def test_mapped_directed(sim_cls, din_delay, cfg_delay, dout_delay, branches):
t_ctrl = Uint[bitw(branches - 1)]
ref = [(i, i) for i in range(branches)]
mapping = {}
for i in range(branches):
mapping[i] = (i + 1) if (i + 1) < branches else 0
ctrl = list(range(branches))
seqs = [[(i - 1) if (i - 1) >= 0 else (branches - 1)]
for i in range(branches)]
drvs = [
drv(t=Uint[s[0] + 1], seq=s) | delay_rng(din_delay, din_delay)
for s in seqs
]
directed(drv(t=t_ctrl, seq=ctrl) | delay_rng(cfg_delay, cfg_delay),
*drvs,
f=mux(mapping=mapping, sim_cls=sim_cls),
delays=[delay_rng(dout_delay, dout_delay)],
ref=ref)
sim()
async def qdeal_impl_same_lvl(din: Queue,
*,
num,
lvl=b'din.lvl-1') -> b'Union[(din, ) * num]':
for i in range(num):
async for (data, eot) in din:
d = data if lvl == 0 else (data, eot)
yield (d, trunc(i, Uint[bitw(num - 1)]))
async def test(din: Array[Maybe, 'num']) -> b'Array[Uint[bitw(num-1)], num]':
num = len(din.dtype)
TIndex = Uint[bitw(num - 1)]
data = Array[TIndex, num]()
async with din as d:
cnt = TIndex(0)
for i in range(num):
data[i] = cnt
if d[i].ctrl:
cnt += 1
yield data
def ii_gen(din: Queue[Uint['w_din'], 2], *, frame_size=(25, 25)):
fifo_depth = 2**bitw(frame_size[1])
accum_s = din | dreg_sp | accum_wrap(add_num=frame_size[0] * frame_size[1])
fifo_out = Intf(accum_s.dtype[0])
add_s = ccat(accum_s[0], fifo_out) | add
fifo_in = ccat(add_s, accum_s[1]) | Queue[add_s.dtype, 2]
fifo_out |= fifo_in | decouple | flatten | fifo2(
depth=fifo_depth, preload=frame_size[1], regout=False)
ii_s = fifo_in
return ii_s | dreg_sp
async def qdeal_same_lvl(din: Queue,
*,
num,
lvl=b'din.lvl-1') -> b'(din, ) * num':
i = Uint[bitw(num)](0)
while i != num:
async for (data, eot) in din:
dout = data if lvl == 0 else (data, eot)
yield demux(i,
dout,
use_dflt=False,
mapping={n: n
for n in range(num)})
i += 1
def schedule(block, ctx):
ctx.scope['_rst_cond'] = ir.Variable('_rst_cond', Bool)
block.stmts.insert(
0, ir.AssignValue(ctx.ref('_rst_cond', 'store'), res_false))
block.stmts.append(
ir.AssignValue(ctx.ref('_rst_cond', 'store'), res_true))
Scheduler(ctx).visit(block)
# print('*** Schedule ***')
# print(PPrinter(ctx).visit(block))
state_num = len(block.state)
if state_num > 1:
ctx.scope['_state'] = ir.Variable(
'_state',
val=ir.ResExpr(Uint[bitw(state_num - 1)](0)),
reg=True,
)
stateblock = ir.IfElseBlock(stmts=[])
for i in range(state_num):
v = StateIsolator(ctx, i)
res = v.visit(block)
if isinstance(res, list):
res = ir.HDLBlock(stmts=res)
res.exit_cond = res_false
stateblock.stmts.append(res)
if state_num > 1:
res.in_cond = ir.BinOpExpr((ctx.ref('_state'), ir.ResExpr(i)),
ir.opc.Eq)
if state_num > 1:
modblock = ir.CombBlock(stmts=[stateblock])
else:
modblock = ir.CombBlock(stmts=stateblock.stmts[0].stmts)
modblock = infer_cycle_done(modblock, ctx)
return modblock
async def qdeal_impl(
din: Queue,
*,
num,
lvl=b'din.lvl-1') -> b'Union[(Queue[din.data, din.lvl-1], ) * num]':
i = Uint[bitw(num - 1)](0)
async for (data, eot) in din:
out_eot = eot[:lvl]
d = data if lvl == 0 else (data, out_eot)
yield (d, i)
if all(out_eot):
if i == (num - 1):
i = 0
else:
i += 1
async def test(din, *, chunk_len, num_workers) -> b'din':
counter = Uint[bitw(chunk_len * chunk_len)](0)
chunk_pow = chunk_len * chunk_len
async for arr, last_arr in din:
if counter >= chunk_pow:
counter = 0
if not last_arr:
yield arr, last_arr
counter += 1
if last_arr:
if counter == chunk_pow - 1:
yield arr, last_arr
else:
yield arr, Uint[1](0)
counter += 1
while counter < chunk_pow - 1 and last_arr:
yield [[0] * chunk_len] * num_workers, Uint[1](0)
counter += 1
yield [[0] * chunk_len] * num_workers, Uint[1](1)
async def qdeal(din: Queue,
*,
num,
lvl=b'din.lvl-1') -> b'(Queue[din.data, din.lvl-1], ) * num':
i = Uint[bitw(num)](0)
async for (data, eot) in din:
out_eot = eot[:lvl]
dout = data if lvl == 0 else (data, out_eot)
yield demux(i,
dout,
use_dflt=False,
mapping={n: n
for n in range(num)})
if all(out_eot):
if i == (num - 1):
i = 0
else:
i += 1
async def serialize_plain(din) -> Queue['din[0]']:
i = Uint[bitw(len(din.dtype) - 1)](0)
async with din as val:
for i, last in qrange(len(din.dtype)):
yield val[i], last
def schedule(cfg, ctx):
ctx.scope['_state'] = ir.Variable(
'_state',
val=ir.ResExpr(Uint[1](0)),
reg=True,
)
loops = []
LoopBreaker(ctx, loops).visit(cfg)
v = ReachingNodes()
v.visit(cfg)
reaching_nodes = v.reaching
state_cfg = {0: cfg}
isolated_loops = {}
for l in loops:
isolated_loops[l.value.state_id] = isolate(ctx, l)
state_in_scope = [{} for _ in range(1 + len(loops))]
piggied = set()
i = 0
order = list(state_cfg.keys())
while i < len(order):
state_id = order[i]
cfg = state_cfg[state_id]
# print(f'[{state_id}]: Scoping')
new_states = {}
# print_cfg_ir(cfg)
if loops:
non_local, piggied_cur = discover_piggieback_states(cfg, ctx, state_in_scope[state_id],
state_id, reaching_nodes,
state_cfg)
VarScope(ctx, state_in_scope, state_id, new_states).visit(cfg)
cfg.value.states.append(state_id)
if loops:
for nl in non_local:
state_cfg[nl] = isolated_loops[nl]
order.insert(i + 1, nl)
cfg.value.states.extend(piggied_cur)
piggied.update(piggied_cur)
state_num = len(state_in_scope) - len(new_states)
if new_states:
# print(f'[{state_id}]: Isolating')
state_cfg[state_id] = isolate(ctx, cfg, exits=new_states, state_num=state_num)
# draw_scheduled_cfg(state_cfg[state_id], simple=False)
# print_cfg_ir(state_cfg[state_id])
for si, ns in enumerate(new_states):
new_state_id = state_num + si
# order.insert(i + 1, len(state_cfg))
# print(f'[{len(state_cfg)}]: Isolating')
# state_cfg.append(isolate(ctx, ns))
order.insert(i + 1, new_state_id)
# print(f'[{len(state_cfg)}]: Isolating')
state_cfg[new_state_id] = isolate(ctx, ns)
# draw_scheduled_cfg(state_cfg[new_state_id], simple=False)
i += 1
if i == len(order):
missing = (piggied | state_cfg.keys()) ^ set(range(len(state_in_scope)))
for s in missing:
# TODO: Can this really be done after all stmts have been inlined?
state_cfg[s] = isolated_loops[s]
order.append(s)
for i, s in state_cfg.items():
in_scope = state_in_scope[i]
# draw_scheduled_cfg(s, simple=True)
# draw_scheduled_cfg(s, simple=False)
append_state_epilog(s, ctx)
prepend_state_prolog(s, ctx, in_scope)
ResolveBlocking(ctx).visit(s)
# print_cfg_ir(s)
RebuildStateIR().visit(s)
# print(f'------------- State {i} --------------')
# print_cfg_ir(s)
states = {i: s.value for i, s in state_cfg.items()}
for i, s in states.items():
test = ir.res_false
for j in s.states:
state_test = ir.BinOpExpr((ctx.ref('_state'), ir.ResExpr(j)), ir.opc.Eq)
test = ir.BinOpExpr([test, state_test], ir.opc.Or)
# state_num = len(states)
state_num = len(state_in_scope)
ctx.scope['_state'].val = ir.ResExpr(Uint[bitw(state_num - 1)](0))
ctx.scope['_state'].dtype = Uint[bitw(state_num - 1)]
stateblock = ir.HDLBlock()
for i, s in states.items():
test = ir.res_false
for j in s.states:
state_test = ir.BinOpExpr((ctx.ref('_state'), ir.ResExpr(j)), ir.opc.Eq)
test = ir.BinOpExpr([test, state_test], ir.opc.Or)
stateblock.add_branch(ir.Branch(stmts=s.stmts, test=test))
modblock = ir.Module(stmts=[stateblock])
return modblock
