src/openpower/test/div/long_div_cases.py

   1 from openpower.simulator.program import Program
   2 from openpower.endian import bigendian
   3
   4 from openpower.test.common import TestAccumulatorBase
   5
   6
   7 class DivTestLong(TestAccumulatorBase):
   8     def case_all(self):
   9         instrs = []
  10         for width in ("w", "d"):
  11             for sign in ("", "u"):
  12                 for ov in ("", "o"):
  13                     for cnd in ("", "."):
  14                         instrs += ["div" + width + sign + ov + cnd,
  15                                    "div" + width + "e" + sign + ov + cnd]
  16             for sign in ("s", "u"):
  17                 instrs += ["mod" + sign + width]
  18         test_values = [
  19             0x0,
  20             0x1,
  21             0x2,
  22             0xFFFF_FFFF_FFFF_FFFF,
  23             0xFFFF_FFFF_FFFF_FFFE,
  24             0x7FFF_FFFF_FFFF_FFFF,
  25             0x8000_0000_0000_0000,
  26             0x1234_5678_0000_0000,
  27             0x1234_5678_8000_0000,
  28             0x1234_5678_FFFF_FFFF,
  29             0x1234_5678_7FFF_FFFF,
  30         ]
  31         for instr in instrs:
  32             l = [f"{instr} 3, 1, 2"]
  33             for ra in test_values:
  34                 for rb in test_values:
  35                     initial_regs = [0] * 32
  36                     initial_regs[1] = ra
  37                     initial_regs[2] = rb
  38                     # use "with" so as to close the files used
  39                     with Program(l, bigendian) as prog:
  40                         self.add_case(prog, initial_regs)
  41