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169 lines
7.4 KiB
169 lines
7.4 KiB
import numpy as np |
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from kyupy.wave_sim import WaveSim, WaveSimCuda, wave_eval_cpu, TMIN, TMAX |
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from kyupy.logic_sim import LogicSim |
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from kyupy import verilog, sdf, logic, bench |
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from kyupy.logic import mvarray |
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from kyupy.sim import SimPrim |
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def test_nand_delays(): |
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op = (SimPrim.NAND4, 4, 0, 1, 2, 3) |
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#op = (0b0111, 4, 0, 1) |
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c = np.full((5*16, 1), TMAX) # 5 waveforms of capacity 16 |
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vat = np.zeros((5, 3), dtype='int') |
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for i in range(5): vat[i] = i*16, 16, 0 # 1:1 mapping |
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# SDF specifies IOPATH delays with respect to output polarity |
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# SDF pulse rejection value is determined by IOPATH causing last transition and polarity of last transition |
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line_times = np.zeros((5, 2, 2)) |
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line_times[0, 0, 0] = 0.1 # A -> Z rise delay |
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line_times[0, 0, 1] = 0.2 # A -> Z fall delay |
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line_times[0, 1, 0] = 0.1 # A -> Z negative pulse limit (terminate in rising Z) |
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line_times[0, 1, 1] = 0.2 # A -> Z positive pulse limit |
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line_times[1, :, 0] = 0.3 # as above for B -> Z |
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line_times[1, :, 1] = 0.4 |
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line_times[2, :, 0] = 0.5 # as above for C -> Z |
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line_times[2, :, 1] = 0.6 |
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line_times[3, :, 0] = 0.7 # as above for D -> Z |
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line_times[3, :, 1] = 0.8 |
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sdata = np.asarray([1, -1, 0, 0], dtype='float32') |
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def wave_assert(inputs, output): |
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for i, a in zip(inputs, c.reshape(-1,16)): a[:len(i)] = i |
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wave_eval_cpu(op, c, vat, 0, line_times, sdata) |
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for i, v in enumerate(output): np.testing.assert_allclose(c.reshape(-1,16)[4,i], v) |
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wave_assert([[TMAX,TMAX],[TMAX,TMAX],[TMIN,TMAX],[TMIN,TMAX]], [TMIN,TMAX]) # NAND(0,0,1,1) => 1 |
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wave_assert([[TMIN,TMAX],[TMAX,TMAX],[TMIN,TMAX],[TMIN,TMAX]], [TMIN,TMAX]) # NAND(1,0,1,1) => 1 |
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wave_assert([[TMIN,TMAX],[TMIN,TMAX],[TMIN,TMAX],[TMIN,TMAX]], [TMAX]) # NAND(1,1,1,1) => 0 |
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# Keep inputs C=1 and D=1. |
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wave_assert([[1,TMAX],[2,TMAX]], [TMIN,2.4,TMAX]) # _/⎺⎺⎺ NAND __/⎺⎺ => ⎺⎺⎺\___ (B->Z fall delay) |
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wave_assert([[TMIN,TMAX],[TMIN,2,TMAX]], [2.3,TMAX]) # ⎺⎺⎺⎺⎺ NAND ⎺⎺\__ => ___/⎺⎺⎺ (B->Z rise delay) |
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wave_assert([[TMIN,TMAX],[TMIN,2,2.35,TMAX]], [2.3,2.75,TMAX]) # ⎺⎺⎺⎺⎺ NAND ⎺\_/⎺ => __/⎺⎺\_ (pos pulse, .35@B -> .45@Z) |
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wave_assert([[TMIN,TMAX],[TMIN,2,2.25,TMAX]], [TMAX]) # ⎺⎺⎺⎺⎺ NAND ⎺\_/⎺ => _______ (pos pulse, .25@B -> .35@Z, filtered) |
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wave_assert([[TMIN,TMAX],[2,2.45,TMAX]], [TMIN,2.4,2.75,TMAX]) # ⎺⎺⎺⎺⎺ NAND _/⎺\_ => ⎺⎺\_/⎺⎺ (neg pulse, .45@B -> .35@Z) |
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wave_assert([[TMIN,TMAX],[2,2.35,TMAX]], [TMIN,TMAX]) # ⎺⎺⎺⎺⎺ NAND _/⎺\_ => ⎺⎺⎺⎺⎺⎺⎺ (neg pulse, .35@B -> .25@Z, filtered) |
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def test_tiny_circuit(): |
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c = bench.parse('input(x, y) output(a, o, n) a=and(x,y) o=or(x,y) n=not(x)') |
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lt = np.zeros((len(c.lines), 2, 2)) |
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lt[:,0,:] = 1.0 # unit delay for all lines |
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wsim = WaveSim(c, lt) |
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assert len(wsim.s) == 5 |
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# values for x |
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wsim.s[0,0,:3] = 0, 0.1, 0 |
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wsim.s[0,1,:3] = 0, 0.2, 1 |
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wsim.s[0,2,:3] = 1, 0.3, 0 |
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wsim.s[0,3,:3] = 1, 0.4, 1 |
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# values for y |
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wsim.s[1,0,:3] = 1, 0.5, 0 |
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wsim.s[1,1,:3] = 1, 0.6, 0 |
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wsim.s[1,2,:3] = 1, 0.7, 0 |
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wsim.s[1,3,:3] = 0, 0.8, 1 |
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wsim.s_to_c() |
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x_c_loc = wsim.vat[wsim.ppi_offset+0, 0] # check x waveforms |
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np.testing.assert_allclose(wsim.c[x_c_loc:x_c_loc+3, 0], [TMAX, TMAX, TMAX]) |
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np.testing.assert_allclose(wsim.c[x_c_loc:x_c_loc+3, 1], [0.2, TMAX, TMAX]) |
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np.testing.assert_allclose(wsim.c[x_c_loc:x_c_loc+3, 2], [TMIN, 0.3, TMAX]) |
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np.testing.assert_allclose(wsim.c[x_c_loc:x_c_loc+3, 3], [TMIN, TMAX, TMAX]) |
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y_c_loc = wsim.vat[wsim.ppi_offset+1, 0] # check y waveforms |
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np.testing.assert_allclose(wsim.c[y_c_loc:y_c_loc+3, 0], [TMIN, 0.5, TMAX]) |
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np.testing.assert_allclose(wsim.c[y_c_loc:y_c_loc+3, 1], [TMIN, 0.6, TMAX]) |
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np.testing.assert_allclose(wsim.c[y_c_loc:y_c_loc+3, 2], [TMIN, 0.7, TMAX]) |
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np.testing.assert_allclose(wsim.c[y_c_loc:y_c_loc+3, 3], [0.8, TMAX, TMAX]) |
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wsim.c_prop() |
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a_c_loc = wsim.vat[wsim.ppo_offset+2, 0] # check a waveforms |
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np.testing.assert_allclose(wsim.c[a_c_loc:a_c_loc+3, 0], [TMAX, TMAX, TMAX]) |
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np.testing.assert_allclose(wsim.c[a_c_loc:a_c_loc+3, 1], [1.2, 1.6, TMAX]) |
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np.testing.assert_allclose(wsim.c[a_c_loc:a_c_loc+3, 2], [TMIN, 1.3, TMAX]) |
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np.testing.assert_allclose(wsim.c[a_c_loc:a_c_loc+3, 3], [1.8, TMAX, TMAX]) |
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o_c_loc = wsim.vat[wsim.ppo_offset+3, 0] # check o waveforms |
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np.testing.assert_allclose(wsim.c[o_c_loc:o_c_loc+3, 0], [TMIN, 1.5, TMAX]) |
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np.testing.assert_allclose(wsim.c[o_c_loc:o_c_loc+3, 1], [TMIN, TMAX, TMAX]) |
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np.testing.assert_allclose(wsim.c[o_c_loc:o_c_loc+3, 2], [TMIN, 1.7, TMAX]) |
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np.testing.assert_allclose(wsim.c[o_c_loc:o_c_loc+3, 3], [TMIN, TMAX, TMAX]) |
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n_c_loc = wsim.vat[wsim.ppo_offset+4, 0] # check n waveforms |
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np.testing.assert_allclose(wsim.c[n_c_loc:n_c_loc+3, 0], [TMIN, TMAX, TMAX]) |
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np.testing.assert_allclose(wsim.c[n_c_loc:n_c_loc+3, 1], [TMIN, 1.2, TMAX]) |
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np.testing.assert_allclose(wsim.c[n_c_loc:n_c_loc+3, 2], [1.3, TMAX, TMAX]) |
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np.testing.assert_allclose(wsim.c[n_c_loc:n_c_loc+3, 3], [TMAX, TMAX, TMAX]) |
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wsim.c_to_s() |
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# check a captures |
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np.testing.assert_allclose(wsim.s[2, 0, 3:7], [0, TMAX, TMIN, 0]) |
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np.testing.assert_allclose(wsim.s[2, 1, 3:7], [0, 1.2, 1.6, 0]) |
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np.testing.assert_allclose(wsim.s[2, 2, 3:7], [1, 1.3, 1.3, 0]) |
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np.testing.assert_allclose(wsim.s[2, 3, 3:7], [0, 1.8, 1.8, 1]) |
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# check o captures |
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np.testing.assert_allclose(wsim.s[3, 0, 3:7], [1, 1.5, 1.5, 0]) |
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np.testing.assert_allclose(wsim.s[3, 1, 3:7], [1, TMAX, TMIN, 1]) |
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np.testing.assert_allclose(wsim.s[3, 2, 3:7], [1, 1.7, 1.7, 0]) |
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np.testing.assert_allclose(wsim.s[3, 3, 3:7], [1, TMAX, TMIN, 1]) |
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# check o captures |
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np.testing.assert_allclose(wsim.s[4, 0, 3:7], [1, TMAX, TMIN, 1]) |
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np.testing.assert_allclose(wsim.s[4, 1, 3:7], [1, 1.2, 1.2, 0]) |
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np.testing.assert_allclose(wsim.s[4, 2, 3:7], [0, 1.3, 1.3, 1]) |
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np.testing.assert_allclose(wsim.s[4, 3, 3:7], [0, TMAX, TMIN, 0]) |
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def compare_to_logic_sim(wsim: WaveSim): |
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choices = np.asarray([logic.ZERO, logic.ONE, logic.RISE, logic.FALL], dtype=np.uint8) |
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rng = np.random.default_rng(10) |
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tests = rng.choice(choices, (wsim.s_len, wsim.sims)) |
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wsim.s[:, :, 0] = (tests & 2) >> 1 |
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wsim.s[:, :, 3] = (tests & 2) >> 1 |
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wsim.s[:, :, 1] = 0.0 |
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wsim.s[:, :, 2] = tests & 1 |
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wsim.s[:, :, 6] = tests & 1 |
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wsim.s_to_c() |
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wsim.c_prop() |
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wsim.c_to_s() |
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resp = np.array(wsim.s[:, :, 6], dtype=np.uint8) | (np.array(wsim.s[:, :, 3], dtype=np.uint8)<<1) |
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resp |= ((resp ^ (resp >> 1)) & 1) << 2 # transitions |
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resp[wsim.pi_s_locs] = logic.UNASSIGNED |
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lsim = LogicSim(wsim.circuit, tests.shape[-1]) |
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lsim.s[0] = logic.mv_to_bp(tests) |
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lsim.s_to_c() |
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lsim.c_prop() |
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lsim.c_to_s() |
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exp = logic.bp_to_mv(lsim.s[1]) |
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resp[resp == logic.PPULSE] = logic.ZERO |
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resp[resp == logic.NPULSE] = logic.ONE |
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exp[exp == logic.PPULSE] = logic.ZERO |
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exp[exp == logic.NPULSE] = logic.ONE |
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np.testing.assert_allclose(resp, exp) |
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def test_b14(b14_circuit, b14_timing): |
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compare_to_logic_sim(WaveSim(b14_circuit, b14_timing, 8)) |
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def test_b14_strip_forks(b14_circuit, b14_timing): |
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compare_to_logic_sim(WaveSim(b14_circuit, b14_timing, 8, strip_forks=True)) |
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def test_b14_cuda(b14_circuit, b14_timing): |
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compare_to_logic_sim(WaveSimCuda(b14_circuit, b14_timing, 8, strip_forks=True))
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