redo the 3-in 1-out move of dsld/dsrd to EXT04 VA2-Form
authorLuke Kenneth Casson Leighton <lkcl@lkcl.net>
Tue, 25 Oct 2022 12:17:18 +0000 (13:17 +0100)
committerLuke Kenneth Casson Leighton <lkcl@lkcl.net>
Fri, 2 Jun 2023 18:51:15 +0000 (19:51 +0100)
openpower/isatables/minor_31.csv
openpower/isatables/minor_4.csv
src/openpower/sv/trans/svp64.py
src/openpower/sv/trans/test_pysvp64dis.py
src/openpower/test/bigint/bigint_cases.py

index 1c67cbe7a585b00b1dbcb4fdb8ee632ec7c34a48..e4dd1ce47c1142f76e5531ef30bc572e918f8b79 100644 (file)
@@ -208,11 +208,3 @@ opcode,unit,internal op,in1,in2,in3,out,CR in,CR out,inv A,inv out,cry in,cry ou
 0b1000110110,ALU,OP_NOP,NONE,NONE,NONE,NONE,NONE,NONE,0,0,ZERO,0,NONE,0,0,0,0,0,0,NONE,0,1,tlbsync,X,,,
 0b0000011110,ALU,OP_NOP,NONE,NONE,NONE,NONE,NONE,NONE,0,0,ZERO,0,NONE,0,0,0,0,0,0,NONE,0,1,wait,X,,,
 0b0100111100,LOGICAL,OP_XOR,RS,RB,NONE,RA,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC,0,0,xor,X,,,
-0b0000111001,SHIFT_ROT,OP_DSHL,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsld,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b0100111001,SHIFT_ROT,OP_DSHL,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsld,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b1000111001,SHIFT_ROT,OP_DSHL,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsld,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b1100111001,SHIFT_ROT,OP_DSHL,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsld,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b0010111001,SHIFT_ROT,OP_DSHR,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsrd,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b0110111001,SHIFT_ROT,OP_DSHR,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsrd,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b1010111001,SHIFT_ROT,OP_DSHR,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsrd,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
-0b1110111001,SHIFT_ROT,OP_DSHR,RA,RB,NONE,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsrd,Z23,,1,unofficial until submitted and approved/renumbered by the opf isa wg
index 7d338877a7159ff3b4e96afd77bd20f7ee90ad04..b2426340b1da02f05248bedcce75ee4eb7ed6db7 100644 (file)
@@ -7,3 +7,7 @@ opcode,unit,internal op,in1,in2,in3,out,CR in,CR out,inv A,inv out,cry in,cry ou
 51,ALU,OP_MADDLD,RA,RB,RC,RT,NONE,NONE,0,0,ZERO,0,NONE,0,0,0,0,1,0,NONE,0,0,maddld,VA,,,
 58,ALU,OP_DIVMOD2DU,RA,RB,RC,RT,NONE,NONE,0,0,ZERO,0,NONE,0,0,0,0,1,0,NONE,0,0,divmod2du,VA,,1,unofficial until submitted and approved/renumbered by the opf isa wg
 56,ALU,OP_PCDEC,RA,RB,RC,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,1,0,ONE,0,0,pcdec,VA,,1,unofficial until submitted and approved/renumbered by the opf isa wg
+52,SHIFT_ROT,OP_DSHL,RA,RB,RC,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsld,VA2,,1,unofficial until submitted and approved/renumbered by the opf isa wg
+53,SHIFT_ROT,OP_DSHL,RA,RB,RC,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsld,VA2,,1,unofficial until submitted and approved/renumbered by the opf isa wg
+54,SHIFT_ROT,OP_DSHR,RA,RB,RC,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsrd,VA2,,1,unofficial until submitted and approved/renumbered by the opf isa wg
+55,SHIFT_ROT,OP_DSHR,RA,RB,RC,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,0,0,RC_ONLY,0,0,dsrd,VA2,,1,unofficial until submitted and approved/renumbered by the opf isa wg
index 7587d85625c524fed1941cccceeff92376233ce1..1a7bade87f22162ff3305c943fecea0fb0d77f31 100644 (file)
@@ -587,10 +587,6 @@ def va_form(fields, XO):
 
 
 @_custom_insns(
-    _insn("dsld",  PO=31, XO=0b00111001, Rc=0),
-    _insn("dsld.", PO=31, XO=0b00111001, Rc=1),
-    _insn("dsrd",  PO=31, XO=0b10111001, Rc=0),
-    _insn("dsrd.", PO=31, XO=0b10111001, Rc=1),
     _insn("shadd",  PO=22, XO=0b01101110, Rc=0),
     _insn("shadd.", PO=22, XO=0b01101110, Rc=1),
     _insn("shadduw",  PO=22, XO=0b11101110, Rc=0),
@@ -607,8 +603,32 @@ def Z23(fields, PO, XO, Rc):
         (RT, 6, 10),
         (RA, 11, 15),
         (RB, 16, 20),
-        (sm, 21, 22),
-        (XO, 23, 30),
+        (RC, 21, 25),
+        (XO, 26, 30),
+        (Rc, 31, 31),
+    )
+
+
+@_custom_insns(
+    _insn("dsld",  XO=26, Rc=0), # minor_4=52 (26<<1 | Rc=0)
+    _insn("dsld.", XO=26, Rc=1), # minor_4=53 (26<<1 | Rc=1)
+    _insn("dsrd",  XO=27, Rc=0), # minor_4=54 (27<<1 | Rc=0)
+    _insn("dsrd.", XO=27, Rc=1), # minor_4=55 (27<<1 | Rc=1)
+)
+def dsld_dsrd(fields, XO, Rc):
+    # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
+    # 1.6.21.1 VA2-FORM
+    #    |0   |6   |11   |16   |21  |26  |31|
+    #    | PO | RT |  RA |  RB | RC | XO |Rc|
+    PO = 4
+    (RT, RA, RB, RC) = fields
+    return instruction(
+        (PO, 0, 5),
+        (RT, 6, 10),
+        (RA, 11, 15),
+        (RB, 16, 20),
+        (RC, 21, 25),
+        (XO, 26, 30),
         (Rc, 31, 31),
     )
 
index 173acce01b3fa688582d9645b0300b276ccf00df..d39717e2e290e0b321f111d139dbc2d5febacea4 100644 (file)
@@ -399,14 +399,14 @@ class SVSTATETestCase(unittest.TestCase):
 
     def test_29_dsld_dsrd(self):
         expected = [
-                    "dsld 5,4,5,1",
-                    "dsrd 5,4,5,2",
+                    "dsld 5,4,5,3",
+                    "dsrd 5,4,5,3",
                     "dsld. 5,4,5,3",
-                    "dsrd. 5,4,5,0",
-                    "sv.dsld *5,4,5,1",
-                    "sv.dsrd *5,4,5,2",
-                    "sv.dsld. *5,4,5,3",
-                    "sv.dsrd. *5,4,5,0",
+                    "dsrd. 5,4,5,3",
+                    "sv.dsld *6,4,5,3",
+                    "sv.dsrd *6,4,5,3",
+                    "sv.dsld. *6,4,5,3",
+                    "sv.dsrd. *6,4,5,3",
                         ]
         self._do_tst(expected)
 
index b6d86322d0d05b93eb23b5f26307b6aff22939a0..6a314212cda6fb972bbb11a4bde323131f6c5313 100644 (file)
@@ -34,7 +34,7 @@ class BigIntCases(TestAccumulatorBase):
     # FIXME: test more divmod2du special cases
 
     def case_dsld0(self):
-        prog = Program(list(SVP64Asm(["dsld 3,4,5,0"])), False)
+        prog = Program(list(SVP64Asm(["dsld 3,4,5,3"])), False)
         for sh in _SHIFT_TEST_RANGE:
             with self.subTest(sh=sh):
                 gprs = [0] * 32
@@ -48,7 +48,7 @@ class BigIntCases(TestAccumulatorBase):
                 self.add_case(prog, gprs, expected=e)
 
     def case_dsld1(self):
-        prog = Program(list(SVP64Asm(["dsld 3,4,5,1"])), False)
+        prog = Program(list(SVP64Asm(["dsld 3,3,5,4"])), False)
         for sh in _SHIFT_TEST_RANGE:
             with self.subTest(sh=sh):
                 gprs = [0] * 32
@@ -62,7 +62,7 @@ class BigIntCases(TestAccumulatorBase):
                 self.add_case(prog, gprs, expected=e)
 
     def case_dsld2(self):
-        prog = Program(list(SVP64Asm(["dsld 3,4,5,2"])), False)
+        prog = Program(list(SVP64Asm(["dsld 3,5,3,4"])), False)
         for sh in _SHIFT_TEST_RANGE:
             with self.subTest(sh=sh):
                 gprs = [0] * 32
@@ -75,22 +75,8 @@ class BigIntCases(TestAccumulatorBase):
                 e.intregs[3] = (v >> 64) % 2 ** 64
                 self.add_case(prog, gprs, expected=e)
 
-    def case_dsld3(self):
-        prog = Program(list(SVP64Asm(["dsld 3,4,5,3"])), False)
-        for sh in _SHIFT_TEST_RANGE:
-            with self.subTest(sh=sh):
-                gprs = [0] * 32
-                gprs[3] = 0x123456789ABCDEF
-                gprs[4] = 0xFEDCBA9876543210
-                gprs[5] = sh % 2 ** 64
-                e = ExpectedState(pc=4, int_regs=gprs)
-                v = gprs[4]
-                v <<= sh % 64
-                e.intregs[3] = (v >> 64) % 2 ** 64
-                self.add_case(prog, gprs, expected=e)
-
     def case_dsrd0(self):
-        prog = Program(list(SVP64Asm(["dsrd 3,4,5,0"])), False)
+        prog = Program(list(SVP64Asm(["dsrd 3,4,5,3"])), False)
         for sh in _SHIFT_TEST_RANGE:
             with self.subTest(sh=sh):
                 gprs = [0] * 32
@@ -104,7 +90,7 @@ class BigIntCases(TestAccumulatorBase):
                 self.add_case(prog, gprs, expected=e)
 
     def case_dsrd1(self):
-        prog = Program(list(SVP64Asm(["dsrd 3,4,5,1"])), False)
+        prog = Program(list(SVP64Asm(["dsrd 3,3,5,4"])), False)
         for sh in _SHIFT_TEST_RANGE:
             with self.subTest(sh=sh):
                 gprs = [0] * 32
@@ -118,7 +104,7 @@ class BigIntCases(TestAccumulatorBase):
                 self.add_case(prog, gprs, expected=e)
 
     def case_dsrd2(self):
-        prog = Program(list(SVP64Asm(["dsrd 3,4,5,2"])), False)
+        prog = Program(list(SVP64Asm(["dsrd 3,5,3,4"])), False)
         for sh in _SHIFT_TEST_RANGE:
             with self.subTest(sh=sh):
                 gprs = [0] * 32
@@ -131,20 +117,6 @@ class BigIntCases(TestAccumulatorBase):
                 e.intregs[3] = v % 2 ** 64
                 self.add_case(prog, gprs, expected=e)
 
-    def case_dsrd3(self):
-        prog = Program(list(SVP64Asm(["dsrd 3,4,5,3"])), False)
-        for sh in _SHIFT_TEST_RANGE:
-            with self.subTest(sh=sh):
-                gprs = [0] * 32
-                gprs[3] = 0x123456789ABCDEF
-                gprs[4] = 0xFEDCBA9876543210
-                gprs[5] = sh % 2 ** 64
-                e = ExpectedState(pc=4, int_regs=gprs)
-                v = gprs[4] << 64
-                v >>= sh % 64
-                e.intregs[3] = v % 2 ** 64
-                self.add_case(prog, gprs, expected=e)
-
 
 class SVP64BigIntCases(TestAccumulatorBase):
     def case_sv_bigint_add(self):