From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 14 May 2021 19:29:35 +0000 (+0100)
Subject: add first FP load test, still a lot TODO
X-Git-Tag: 0.0.3~42
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=38d5245a4dc56d76bae7c045ec8b68bf253eb036;p=openpower-isa.git

add first FP load test, still a lot TODO
---

diff --git a/src/openpower/decoder/isa/test_caller.py b/src/openpower/decoder/isa/test_caller.py
index 710fc6c0..efb6275f 100644
--- a/src/openpower/decoder/isa/test_caller.py
+++ b/src/openpower/decoder/isa/test_caller.py
@@ -17,7 +17,8 @@ class Register:
         self.num = num
 
 def run_tst(generator, initial_regs, initial_sprs=None, svstate=0, mmu=False,
-                                     initial_cr=0,mem=None):
+                                     initial_cr=0, mem=None,
+                                     initial_fprs=None):
     if initial_sprs is None:
         initial_sprs = {}
     m = Module()
@@ -35,13 +36,13 @@ def run_tst(generator, initial_regs, initial_sprs=None, svstate=0, mmu=False,
                     initial_insns=gen, respect_pc=True,
                     initial_svstate=svstate,
                     initial_mem=mem,
+                    fpregfile=initial_fprs,
                     disassembly=insncode,
                     bigendian=0,
                     mmu=mmu)
     comb += pdecode2.dec.raw_opcode_in.eq(instruction)
     sim = Simulator(m)
 
-
     def process():
 
         yield pdecode2.dec.bigendian.eq(0)  # little / big?
diff --git a/src/openpower/decoder/isa/test_caller_fp.py b/src/openpower/decoder/isa/test_caller_fp.py
new file mode 100644
index 00000000..7468cc51
--- /dev/null
+++ b/src/openpower/decoder/isa/test_caller_fp.py
@@ -0,0 +1,52 @@
+from nmigen import Module, Signal
+from nmigen.back.pysim import Simulator, Delay, Settle
+from nmutil.formaltest import FHDLTestCase
+import unittest
+from openpower.decoder.isa.caller import ISACaller
+from openpower.decoder.power_decoder import (create_pdecode)
+from openpower.decoder.power_decoder2 import (PowerDecode2)
+from openpower.simulator.program import Program
+from openpower.decoder.isa.caller import ISACaller, SVP64State
+from openpower.decoder.selectable_int import SelectableInt
+from openpower.decoder.orderedset import OrderedSet
+from openpower.decoder.isa.all import ISA
+from openpower.decoder.isa.test_caller import Register, run_tst
+from copy import deepcopy
+
+
+class DecoderTestCase(FHDLTestCase):
+
+    def _check_regs(self, sim, expected_int, expected_fpr):
+        for i in range(32):
+            self.assertEqual(sim.gpr(i), SelectableInt(expected[i], 64))
+        for i in range(32):
+            self.assertEqual(sim.fpr(i), SelectableInt(expected_fpr[i], 64))
+
+    def test_fpload(self):
+        """>>> lst = ["lfsx 1, 0, 0x0008",
+                     ]
+        """
+        lst = ["lfsx 1, 0, 0x0008",
+                     ]
+        initial_mem = {0x0000: (0x4040266666666666, 8),
+                       0x0008: (0xabcdef0187654321, 8),
+                       0x0020: (0x1828384822324252, 8),
+                        }
+
+        with Program(lst, bigendian=False) as program:
+            sim = self.run_tst_program(program, initial_mem=initial_mem)
+            print(sim.fpr(1))
+            self.assertEqual(sim.fpr(1), SelectableInt(0x4040266666666666, 64))
+
+    def run_tst_program(self, prog, initial_regs=None,
+                              initial_mem=None):
+        if initial_regs is None:
+            initial_regs = [0] * 32
+        simulator = run_tst(prog, initial_regs, mem=initial_mem)
+        simulator.gpr.dump()
+        simulator.fpr.dump()
+        return simulator
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/src/openpower/decoder/isa/test_caller_svp64.py b/src/openpower/decoder/isa/test_caller_svp64.py
index 3e240de1..a8e94c33 100644
--- a/src/openpower/decoder/isa/test_caller_svp64.py
+++ b/src/openpower/decoder/isa/test_caller_svp64.py
@@ -15,6 +15,7 @@ from openpower.sv.trans.svp64 import SVP64Asm
 from openpower.consts import SVP64CROffs
 from copy import deepcopy
 
+
 class DecoderTestCase(FHDLTestCase):
 
     def _check_regs(self, sim, expected):
diff --git a/src/openpower/decoder/power_enums.py b/src/openpower/decoder/power_enums.py
index da259953..f7e8ce1c 100644
--- a/src/openpower/decoder/power_enums.py
+++ b/src/openpower/decoder/power_enums.py
@@ -219,11 +219,16 @@ _insns = [
     "divdeuo", "divdo", "divdu", "divduo", "divw", "divwe", "divweo",
     "divweu", "divweuo", "divwo", "divwu", "divwuo", "eqv", "extsb",
     "extsh", "extsw", "extswsli", "hrfid", "icbi", "icbt", "isel", "isync",
-    "lbarx", "lbz", "lbzu", "lbzux", "lbzx", "ld", "ldarx", "ldbrx",
-    "ldu", "ldux", "ldx", "lha", "lharx", "lhau", "lhaux", "lhax",
-    "lhbrx", "lhz", "lhzu", "lhzux", "lhzx", "lwa", "lwarx", "lwaux",
-    "lwax", "lwbrx", "lwz", "lwzcix", "lwzu", "lwzux", "lwzx", "mcrf", "mcrxr",
-    "mcrxrx", "mfcr/mfocrf", "mfmsr", "mfspr", "modsd", "modsw", "modud",
+    "lbarx", "lbz", "lbzu", "lbzux", "lbzx", # load byte
+    "ld", "ldarx", "ldbrx", "ldu", "ldux", "ldx", # load double
+    "lfs", "lfsx", "lfsu", "lfsux", # FP load single
+    "lfd", "lfdx", "lfdu", "lfdux", "lfiwzx", "lfiwax", # FP load double
+    "lha", "lharx", "lhau", "lhaux", "lhax", # load half
+    "lhbrx", "lhz", "lhzu", "lhzux", "lhzx", # more load half
+    "lwa", "lwarx", "lwaux", "lwax", "lwbrx",  # load word
+    "lwz", "lwzcix", "lwzu", "lwzux", "lwzx",  # more load word
+    "mcrf", "mcrxr", "mcrxrx", "mfcr/mfocrf",
+    "mfmsr", "mfspr", "modsd", "modsw", "modud",
     "moduw", "mtcrf/mtocrf", "mtmsr", "mtmsrd", "mtspr", "mulhd", "mulhdu",
     "mulhw", "mulhwu", "mulld", "mulldo", "mulli", "mullw", "mullwo",
     "nand", "neg", "nego", "nop", "nor", "or", "orc", "ori", "oris",