1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
from simple_config import *
def is_io(x, y):
return x == 0 or x == X-1 or y == 0 or y == Y-1
for x in range(X):
for y in range(Y):
# Bel port wires
for z in range(N):
ctx.addWire(name="X%dY%dZ%d_CLK" % (x, y, z), type="BEL_CLK", x=x, y=y)
ctx.addWire(name="X%dY%dZ%d_Q" % (x, y, z), type="BEL_Q", x=x, y=y)
for i in range(K):
ctx.addWire(name="X%dY%dZ%d_I%d" % (x, y, z, i), type="BEL_I", x=x, y=y)
# Local wires
for l in range(Wl):
ctx.addWire(name="X%dY%d_LOCAL%d" % (x, y, l), type="LOCAL", x=x, y=y)
# Create bels
if is_io(x, y):
if x == y:
continue
for z in range(2):
ctx.addBel(name="X%dY%d_IO%d" % (x, y, z), type="GENERIC_IOB", loc=Loc(x, y, z), gb=False)
ctx.addBelInput(bel="X%dY%d_IO%d" % (x, y, z), name="I", wire="X%dY%dZ%d_I0" % (x, y, z))
ctx.addBelInput(bel="X%dY%d_IO%d" % (x, y, z), name="EN", wire="X%dY%dZ%d_I1" % (x, y, z))
ctx.addBelOutput(bel="X%dY%d_IO%d" % (x, y, z), name="O", wire="X%dY%dZ%d_Q" % (x, y, z))
else:
for z in range(N):
ctx.addBel(name="X%dY%d_SLICE%d" % (x, y, z), type="GENERIC_SLICE", loc=Loc(x, y, z), gb=False)
ctx.addBelInput(bel="X%dY%d_SLICE%d" % (x, y, z), name="CLK", wire="X%dY%dZ%d_CLK" % (x, y, z))
for k in range(K):
ctx.addBelInput(bel="X%dY%d_SLICE%d" % (x, y, z), name="I[%d]" % k, wire="X%dY%dZ%d_I%d" % (x, y, z, k))
ctx.addBelOutput(bel="X%dY%d_SLICE%d" % (x, y, z), name="Q", wire="X%dY%dZ%d_Q" % (x, y, z))
for x in range(X):
for y in range(Y):
# Pips driving bel input wires
# Bel input wires are driven by every Si'th local with an offset
def create_input_pips(dst, offset, skip):
for i in range(offset % skip, Wl, skip):
src = "X%dY%d_LOCAL%d" % (x, y, i)
ctx.addPip(name="X%dY%d.%s.%s" % (x, y, src, dst), type="BEL_INPUT",
srcWire=src, dstWire=dst, delay=ctx.getDelayFromNS(0.05), loc=Loc(x, y, 0))
for z in range(N):
create_input_pips("X%dY%dZ%d_CLK" % (x, y, z), 0, Si)
for k in range(K):
create_input_pips("X%dY%dZ%d_I%d" % (x, y, z, k), k % Si, Si)
# Pips from bel outputs to locals
def create_output_pips(dst, offset, skip):
for i in range(offset % skip, N, skip):
src = "X%dY%dZ%d_Q" % (x, y, i)
ctx.addPip(name="X%dY%d.%s.%s" % (x, y, src, dst), type="BEL_OUTPUT",
srcWire=src, dstWire=dst, delay=ctx.getDelayFromNS(0.05), loc=Loc(x, y, 0))
# Pips from neighbour locals to locals
def create_neighbour_pips(dst, nx, ny, offset, skip):
if nx < 0 or nx >= X or ny < 0 or ny >= Y:
return
for i in range(offset % skip, Wl, skip):
src = "X%dY%d_LOCAL%d" % (nx, ny, i)
ctx.addPip(name="X%dY%d.%s.%s" % (x, y, src, dst), type="NEIGHBOUR",
srcWire=src, dstWire=dst, delay=ctx.getDelayFromNS(0.05), loc=Loc(x, y, 0))
for l in range(Wl):
dst = "X%dY%d_LOCAL%d" % (x, y, l)
create_output_pips(dst, l % Sq, Sq)
create_neighbour_pips(dst, x-1, y-1, (l + 1) % Sl, Sl)
create_neighbour_pips(dst, x-1, y, (l + 2) % Sl, Sl)
create_neighbour_pips(dst, x-1, y+1, (l + 2) % Sl, Sl)
create_neighbour_pips(dst, x, y-1, (l + 3) % Sl, Sl)
create_neighbour_pips(dst, x, y+1, (l + 4) % Sl, Sl)
create_neighbour_pips(dst, x+1, y-1, (l + 5) % Sl, Sl)
create_neighbour_pips(dst, x+1, y, (l + 6) % Sl, Sl)
create_neighbour_pips(dst, x+1, y+1, (l + 7) % Sl, Sl)
|
