File size: 3,793 Bytes
784ee2c | 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 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | #!/usr/bin/env python3
import sys
import unittest
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parent))
import detect
class DetectTest(unittest.TestCase):
def test_scan_yosys_json_single_clock(self):
yosys_json = {
"modules": {
"\\sram_256x32": {
"cells": {
"\\$mem_0": {
"type": "$mem_v2",
"parameters": {
"SIZE": "00000000000000000000000100000000", # 256
"WIDTH": "00000000000000000000000000100000", # 32
"RD_PORTS": 1,
"WR_PORTS": 1,
},
"connections": {
"RD_CLK": [10],
"WR_CLK": [10],
"RD_EN": [11],
"WR_EN": [12, 13, 14, 15], # 4 mask lanes
"RD_ADDR": [16, 17, 18, 19, 20, 21, 22, 23],
"WR_ADDR": [16, 17, 18, 19, 20, 21, 22, 23],
"RD_DATA": list(range(24, 56)),
"WR_DATA": list(range(56, 88)),
},
}
}
}
}
}
mems = detect.scan_yosys_json(yosys_json)
self.assertEqual(len(mems), 1)
m = mems[0]
self.assertEqual(
(m.name, m.rows, m.bits, m.addr_w), ("sram_256x32", 256, 32, 8)
)
self.assertEqual((m.read_ports, m.write_ports, m.mask_lanes), (1, 1, 4))
self.assertIn("single-clock", m.reason)
def test_scan_yosys_json_multi_clock(self):
yosys_json = {
"modules": {
"\\async_ram_512x16": {
"cells": {
"\\$mem_0": {
"type": "$mem_v2",
"parameters": {
"SIZE": 512,
"WIDTH": 16,
"RD_PORTS": 1,
"WR_PORTS": 1,
},
"connections": {
"RD_CLK": [100],
"WR_CLK": [200], # Different clock net ID
"RD_EN": [101],
"WR_EN": [201],
"RD_ADDR": list(range(102, 111)),
"WR_ADDR": list(range(202, 211)),
"RD_DATA": list(range(111, 127)),
"WR_DATA": list(range(211, 227)),
},
}
}
}
}
}
mems = detect.scan_yosys_json(yosys_json)
self.assertEqual(len(mems), 1)
m = mems[0]
self.assertEqual(
(m.name, m.rows, m.bits, m.addr_w), ("async_ram_512x16", 512, 16, 9)
)
self.assertIn("multi-clock", m.reason)
def test_scan_yosys_json_empty_or_non_memory(self):
yosys_json = {
"modules": {
"\\counter": {
"cells": {
"\\$add_0": {
"type": "$add",
"parameters": {"A_WIDTH": 8, "B_WIDTH": 8},
"connections": {},
}
}
}
}
}
self.assertEqual(detect.scan_yosys_json(yosys_json), [])
if __name__ == "__main__":
unittest.main()
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