Add second case_all test where rb is randint

diff --git a/src/soc/fu/mul/test/test_pipe_caller.py b/src/soc/fu/mul/test/test_pipe_caller.py
index 3274f012794ffa6af1ee581a316805cdb7004ee6..1f27cefca9e00d41e811320e6112454508d68096 100644 (file)
--- a/src/soc/fu/mul/test/test_pipe_caller.py
+++ b/src/soc/fu/mul/test/test_pipe_caller.py
@@ -199,6 +199,40 @@ class MulTestCase(TestAccumulatorBase):
                     with Program(l, bigendian) as prog:
                         self.add_case(prog, initial_regs)
 
+    def case_all_rb_randint(self):
+        instrs = ["mulli","mulhw",
+                  "mulhw.","mullw",
+                  "mullw.","mullwo",
+                  "mullwo.","mulhwu",
+                  "mulhwu.","mulld",
+                  "mulld.","mulldo",
+                  "mulldo.","mulhd",
+                  "mulhd.","mulhdu",
+                  "mulhdu."]
+
+        test_values = [
+            0x0,
+            0x1,
+            0x2,
+            0xFFFF_FFFF_FFFF_FFFF,
+            0xFFFF_FFFF_FFFF_FFFE,
+            0x7FFF_FFFF_FFFF_FFFF,
+            0x8000_0000_0000_0000,
+            0x1234_5678_0000_0000,
+            0x1234_5678_8000_0000,
+            0x1234_5678_FFFF_FFFF,
+            0x1234_5678_7FFF_FFFF,
+        ]
+
+        for instr in instrs:
+            l = [f"{instr} 3, 1, 2"]
+            for ra in test_values:
+                initial_regs = [0] * 32
+                initial_regs[1] = ra
+                initial_regs[2] = random.randint(0, (1 << 64)-1)
+                # use "with" so as to close the files used
+                with Program(l, bigendian) as prog:
+                    self.add_case(prog, initial_regs)
 
     def case_ilang(self):
         pspec = MulPipeSpec(id_wid=2)