wasm-embedded-spec 0.4.0

Embedded WASM WITX specification
Documentation 
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# Mock expectations for i2c test, see hal/tests/i2c.rs
ops = [
  { kind = "i2c_init", port = 0, baud = 4000000, sda = -1, scl = -1, res = 1 },
  { kind = "i2c_write", handle = 1, addr = 0x0a, data_out = [0xaa, 0xbb, 0xcc], res = 0 },
  { kind = "i2c_read", handle = 1, addr = 0x0a, data_in = [0x11, 0x22, 0x33, 0x44], res = 0 },
  { kind = "i2c_write_read", handle = 1, addr = 0x0a, data_out = [0xaa, 0xbb, 0xcc], data_in = [0x22, 0x33, 0x44, 0x55], res = 0 },
]