def main(ninputs,
noutputs,
input_isbits=True,
output_isbits=True,
has_clock=False):
assert 0 <= ninputs <= 8
assert 0 <= noutputs <= 8
print(m.mantle_target)
if m.mantle_target == 'ice40':
from loam.boards.icestick import IceStick
icestick = IceStick()
if has_clock:
icestick.Clock.on()
for i in range(ninputs):
icestick.J1[i].input().on()
for i in range(noutputs):
icestick.J3[i].output().on()
top = icestick.main()
if ninputs:
top.I = top.J1
if noutputs:
top.O = top.J3
elif m.mantle_target == 'spartan3' or m.mantle_target == 'spartan6':
from loam.boards.papilioone import PapilioOne
from loam.boards.papiliopro import PapilioPro
from loam.shields.megawing import MegaWing
Papilio = PapilioOne if m.mantle_target == 'spartan3' else PapilioPro
megawing = MegaWing(Papilio)
if has_clock:
megawing.Clock.on()
megawing.Switch.on(ninputs)
megawing.LED.on(noutputs)
top = megawing.main()
if ninputs:
top.I = top.SWITCH
if noutputs:
top.O = top.LED
else:
raise ValueError(m.mantle_target)
if ninputs == 1 and input_isbits:
top.I = m.bits([top.I])
if noutputs == 1 and output_isbits:
top.O = m.bits([top.O])
return top
def main(n):
import magma as m
m.set_mantle_target('spartan3')
from loam.boards.papilioone import PapilioOne
from loam.shields.megawing import MegaWing
from mantle import LUTN
megawing = MegaWing(PapilioOne)
megawing.Switch.on(n)
megawing.LED.on(1)
top = megawing.main()
pown = 1 << n
lut = LUTN(pown // 2 * [0, 1], pown)
I = [top.SWITCH[i] for i in range(n)] if n != 1 else [top.SWITCH]
m.wire(lut(*I), top.LED)
m.EndCircuit()
return top
import sys from magma import * from mantle import * from loam.shields.megawing import MegaWing megawing = MegaWing() megawing.Switch.on(2) megawing.LED.on(1) main = megawing.main() A = main.SWITCH[0] B = main.SWITCH[1] O = main.LED[0] xor2 = Xor2() xor2(A, B) wire(xor2.O, O) compile(sys.argv[1], main)
