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power-fv/power_fv/insn/const.py

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In-depth refactoring, improved user interface. * A PowerFVSession class provides a REPL interface. Functionality is split into commands (e.g. add checks, build) which can be provided interactively or from a file. See cores/microwatt for an example of its integration. * Instruction specifications are now separated from verification testbenches. An InsnSpec class provides a behavioral model using the same PowerFV interface as a core. This interface is output-only for a core, but bidirectional for the InsnSpec: - fields related to context (e.g. read data) are inputs, - fields related to side-effects (e.g. write strobes) are outputs. The testbench is responsible for driving inputs to the same values as the core, then check outputs for equivalence. This decoupling provides a path towards using PowerFV in simulation. * Instruction encodings are now defined by their fields, not their format (which was problematic e.g. X-form has dozens of variants). Field declarations can be preset to a value, or left undefined. In the latter case, they are implicitly cast to AnyConst (which is useful for arbitrary values like immediates).
2 years ago
from . import WordInsn
import power_fv.insn.field as f
# Branches
class B (WordInsn): _fields = (f.PO(18), f.LI(), f.AA(0), f.LK(0))
class BA (WordInsn): _fields = (f.PO(18), f.LI(), f.AA(1), f.LK(0))
class BL (WordInsn): _fields = (f.PO(18), f.LI(), f.AA(0), f.LK(1))
class BLA (WordInsn): _fields = (f.PO(18), f.LI(), f.AA(1), f.LK(1))
class BC (WordInsn): _fields = (f.PO(16), f.BO(), f.BI(), f.BD(), f.AA(0), f.LK(0))
class BCA (WordInsn): _fields = (f.PO(16), f.BO(), f.BI(), f.BD(), f.AA(1), f.LK(0))
class BCL (WordInsn): _fields = (f.PO(16), f.BO(), f.BI(), f.BD(), f.AA(0), f.LK(1))
class BCLA (WordInsn): _fields = (f.PO(16), f.BO(), f.BI(), f.BD(), f.AA(1), f.LK(1))
class BCLR (WordInsn): _fields = (f.PO(19), f.BO(), f.BI(), f.BH(), f.XO_XL( 16), f.LK(0))
class BCLRL (WordInsn): _fields = (f.PO(19), f.BO(), f.BI(), f.BH(), f.XO_XL( 16), f.LK(1))
class BCCTR (WordInsn): _fields = (f.PO(19), f.BO(), f.BI(), f.BH(), f.XO_XL(528), f.LK(0))
class BCCTRL (WordInsn): _fields = (f.PO(19), f.BO(), f.BI(), f.BH(), f.XO_XL(528), f.LK(1))
class BCTAR (WordInsn): _fields = (f.PO(19), f.BO(), f.BI(), f.BH(), f.XO_XL(560), f.LK(0))
class BCTARL (WordInsn): _fields = (f.PO(19), f.BO(), f.BI(), f.BH(), f.XO_XL(560), f.LK(1))
Add check for System Call instruction.
2 years ago
# System Call
class SC (WordInsn): _fields = (f.PO(17), f.LEV(), f.SC_30(1))
class SCV (WordInsn): _fields = (f.PO(17), f.LEV(), f.SC_30(0), f.SC_31(1))
In-depth refactoring, improved user interface. * A PowerFVSession class provides a REPL interface. Functionality is split into commands (e.g. add checks, build) which can be provided interactively or from a file. See cores/microwatt for an example of its integration. * Instruction specifications are now separated from verification testbenches. An InsnSpec class provides a behavioral model using the same PowerFV interface as a core. This interface is output-only for a core, but bidirectional for the InsnSpec: - fields related to context (e.g. read data) are inputs, - fields related to side-effects (e.g. write strobes) are outputs. The testbench is responsible for driving inputs to the same values as the core, then check outputs for equivalence. This decoupling provides a path towards using PowerFV in simulation. * Instruction encodings are now defined by their fields, not their format (which was problematic e.g. X-form has dozens of variants). Field declarations can be preset to a value, or left undefined. In the latter case, they are implicitly cast to AnyConst (which is useful for arbitrary values like immediates).
2 years ago
# Condition Register
class CRAND (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(257))
class CROR (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(449))
class CRNAND (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(225))
class CRXOR (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(193))
class CRNOR (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL( 33))
class CRANDC (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(129))
class CREQV (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(289))
class CRORC (WordInsn): _fields = (f.PO(19), f.BT(), f.BA(), f.BB(), f.XO_XL(417))
class MCRF (WordInsn): _fields = (f.PO(19), f.BF(), f.BFA(), f.XO_XL( 0))
Add checks for Load/Store instructions.
2 years ago
# Load
class LBZ (WordInsn): _fields = (f.PO(34), f.RT(), f.RA(), f.D())
class LBZX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X( 87))
class LBZU (WordInsn): _fields = (f.PO(35), f.RT(), f.RA(), f.D())
class LBZUX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X(119))
class LHZ (WordInsn): _fields = (f.PO(40), f.RT(), f.RA(), f.D())
class LHZX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X(279))
class LHZU (WordInsn): _fields = (f.PO(41), f.RT(), f.RA(), f.D())
class LHZUX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X(311))
class LHA (WordInsn): _fields = (f.PO(42), f.RT(), f.RA(), f.D())
class LHAX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X(343))
class LHAU (WordInsn): _fields = (f.PO(43), f.RT(), f.RA(), f.D())
class LHAUX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X(375))
class LWZ (WordInsn): _fields = (f.PO(32), f.RT(), f.RA(), f.D())
class LWZX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X( 23))
class LWZU (WordInsn): _fields = (f.PO(33), f.RT(), f.RA(), f.D())
class LWZUX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X( 55))
class LWBRX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO_X(534))
# Store
class STB (WordInsn): _fields = (f.PO(38), f.RS(), f.RA(), f.D())
class STBX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(215))
class STBU (WordInsn): _fields = (f.PO(39), f.RS(), f.RA(), f.D())
class STBUX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(247))
class STH (WordInsn): _fields = (f.PO(44), f.RS(), f.RA(), f.D())
class STHX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(407))
class STHU (WordInsn): _fields = (f.PO(45), f.RS(), f.RA(), f.D())
class STHUX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(439))
class STW (WordInsn): _fields = (f.PO(36), f.RS(), f.RA(), f.D())
class STWX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(151))
class STWU (WordInsn): _fields = (f.PO(37), f.RS(), f.RA(), f.D())
class STWUX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(183))
class STHBRX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(918))
class STWBRX (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(662))
In-depth refactoring, improved user interface. * A PowerFVSession class provides a REPL interface. Functionality is split into commands (e.g. add checks, build) which can be provided interactively or from a file. See cores/microwatt for an example of its integration. * Instruction specifications are now separated from verification testbenches. An InsnSpec class provides a behavioral model using the same PowerFV interface as a core. This interface is output-only for a core, but bidirectional for the InsnSpec: - fields related to context (e.g. read data) are inputs, - fields related to side-effects (e.g. write strobes) are outputs. The testbench is responsible for driving inputs to the same values as the core, then check outputs for equivalence. This decoupling provides a path towards using PowerFV in simulation. * Instruction encodings are now defined by their fields, not their format (which was problematic e.g. X-form has dozens of variants). Field declarations can be preset to a value, or left undefined. In the latter case, they are implicitly cast to AnyConst (which is useful for arbitrary values like immediates).
2 years ago
# Add / Subtract From
class ADDI (WordInsn): _fields = (f.PO(14), f.RT(), f.RA(), f.SI())
class ADDIS (WordInsn): _fields = (f.PO(15), f.RT(), f.RA(), f.SI())
class ADDPCIS (WordInsn): _fields = (f.PO(19), f.RT(), f.d1(), f.d0(), f.XO_DX(2), f.d2())
class ADD (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(266), f.Rc(0))
class ADD_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(266), f.Rc(1))
class ADDO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(266), f.Rc(0))
class ADDO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(266), f.Rc(1))
class ADDIC (WordInsn): _fields = (f.PO(12), f.RT(), f.RA(), f.SI())
class ADDIC_ (WordInsn): _fields = (f.PO(13), f.RT(), f.RA(), f.SI())
class SUBF (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO( 40), f.Rc(0))
class SUBF_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO( 40), f.Rc(1))
class SUBFO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO( 40), f.Rc(0))
class SUBFO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO( 40), f.Rc(1))
class SUBFIC (WordInsn): _fields = (f.PO( 8), f.RT(), f.RA(), f.SI())
class ADDC (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO( 10), f.Rc(0))
class ADDC_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO( 10), f.Rc(1))
class ADDCO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO( 10), f.Rc(0))
class ADDCO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO( 10), f.Rc(1))
class ADDE (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(138), f.Rc(0))
class ADDE_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(138), f.Rc(1))
class ADDEO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(138), f.Rc(0))
class ADDEO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(138), f.Rc(1))
class SUBFC (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO( 8), f.Rc(0))
class SUBFC_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO( 8), f.Rc(1))
class SUBFCO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO( 8), f.Rc(0))
class SUBFCO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO( 8), f.Rc(1))
class SUBFE (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(136), f.Rc(0))
class SUBFE_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(136), f.Rc(1))
class SUBFEO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(136), f.Rc(0))
class SUBFEO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(136), f.Rc(1))
class ADDME (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(234), f.Rc(0))
class ADDME_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(234), f.Rc(1))
class ADDMEO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(234), f.Rc(0))
class ADDMEO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(234), f.Rc(1))
class ADDZE (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(202), f.Rc(0))
class ADDZE_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(202), f.Rc(1))
class ADDZEO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(202), f.Rc(0))
class ADDZEO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(202), f.Rc(1))
class SUBFME (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(232), f.Rc(0))
class SUBFME_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(232), f.Rc(1))
class SUBFMEO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(232), f.Rc(0))
class SUBFMEO_(WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(232), f.Rc(1))
class SUBFZE (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(200), f.Rc(0))
class SUBFZE_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(200), f.Rc(1))
class SUBFZEO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(200), f.Rc(0))
class SUBFZEO_(WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(200), f.Rc(1))
class ADDEX (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.CY(0), f.XO_Z23(170))
class NEG (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(104), f.Rc(0))
class NEG_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(0), f.XO(104), f.Rc(1))
class NEGO (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(104), f.Rc(0))
class NEGO_ (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.OE(1), f.XO(104), f.Rc(1))
# Compare
class CMPI (WordInsn): _fields = (f.PO(11), f.BF(), f.L_D10(), f.RA(), f.SI())
class CMPLI (WordInsn): _fields = (f.PO(10), f.BF(), f.L_D10(), f.RA(), f.UI())
class CMP (WordInsn): _fields = (f.PO(31), f.BF(), f.L_X10(), f.RA(), f.RB(), f.XO_X( 0))
class CMPL (WordInsn): _fields = (f.PO(31), f.BF(), f.L_X10(), f.RA(), f.RB(), f.XO_X( 32))
class CMPRB (WordInsn): _fields = (f.PO(31), f.BF(), f.L_X10(), f.RA(), f.RB(), f.XO_X(192))
class CMPEQB (WordInsn): _fields = (f.PO(31), f.BF(), f.L_X10(), f.RA(), f.RB(), f.XO_X(224))
Add checks for Trap instructions.
2 years ago
# Trap
class TWI (WordInsn): _fields = (f.PO( 3), f.TO(), f.RA(), f.SI())
class TW (WordInsn): _fields = (f.PO(31), f.TO(), f.RA(), f.RB(), f.XO_X(4))
Add checks for logical instructions.
2 years ago
# Logical
class ANDI_ (WordInsn): _fields = (f.PO(28), f.RS(), f.RA(), f.UI())
class ANDIS_ (WordInsn): _fields = (f.PO(29), f.RS(), f.RA(), f.UI())
class ORI (WordInsn): _fields = (f.PO(24), f.RS(), f.RA(), f.UI())
class ORIS (WordInsn): _fields = (f.PO(25), f.RS(), f.RA(), f.UI())
class XORI (WordInsn): _fields = (f.PO(26), f.RS(), f.RA(), f.UI())
class XORIS (WordInsn): _fields = (f.PO(27), f.RS(), f.RA(), f.UI())
class AND (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X( 28), f.Rc(0))
class AND_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X( 28), f.Rc(1))
class XOR (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(316), f.Rc(0))
class XOR_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(316), f.Rc(1))
class NAND (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(476), f.Rc(0))
class NAND_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(476), f.Rc(1))
class OR (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(444), f.Rc(0))
class OR_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(444), f.Rc(1))
class ORC (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(412), f.Rc(0))
class ORC_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(412), f.Rc(1))
class NOR (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(124), f.Rc(0))
class NOR_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(124), f.Rc(1))
class EQV (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(284), f.Rc(0))
class EQV_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(284), f.Rc(1))
class ANDC (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X( 60), f.Rc(0))
class ANDC_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X( 60), f.Rc(1))
class EXTSB (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(954), f.Rc(0))
class EXTSB_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(954), f.Rc(1))
class EXTSH (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(922), f.Rc(0))
class EXTSH_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(922), f.Rc(1))
class CMPB (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(508))
class CNTLZW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X( 26), f.Rc(0))
class CNTLZW_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X( 26), f.Rc(1))
class CNTTZW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(538), f.Rc(0))
class CNTTZW_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(538), f.Rc(1))
class POPCNTB (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(122))
class POPCNTW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(378))
class PRTYW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(154))
Add checks for Rotate/Shift instructions.
2 years ago
# Rotate / Shift
class RLWINM (WordInsn): _fields = (f.PO(21), f.RS(), f.RA(), f.SH(), f.MB(), f.ME(), f.Rc(0))
class RLWINM_ (WordInsn): _fields = (f.PO(21), f.RS(), f.RA(), f.SH(), f.MB(), f.ME(), f.Rc(1))
class RLWNM (WordInsn): _fields = (f.PO(23), f.RS(), f.RA(), f.RB(), f.MB(), f.ME(), f.Rc(0))
class RLWNM_ (WordInsn): _fields = (f.PO(23), f.RS(), f.RA(), f.RB(), f.MB(), f.ME(), f.Rc(1))
class RLWIMI (WordInsn): _fields = (f.PO(20), f.RS(), f.RA(), f.SH(), f.MB(), f.ME(), f.Rc(0))
class RLWIMI_ (WordInsn): _fields = (f.PO(20), f.RS(), f.RA(), f.SH(), f.MB(), f.ME(), f.Rc(1))
class SLW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X( 24), f.Rc(0))
class SLW_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X( 24), f.Rc(1))
class SRW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(536), f.Rc(0))
class SRW_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(536), f.Rc(1))
class SRAWI (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.SH(), f.XO_X(824), f.Rc(0))
class SRAWI_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.SH(), f.XO_X(824), f.Rc(1))
class SRAW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(792), f.Rc(0))
class SRAW_ (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.RB(), f.XO_X(792), f.Rc(1))
Add checks for BCD Assist instructions.
2 years ago
# BCD Assist
class CDTBCD (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(282))
class CBCDTD (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(314))
class ADDG6S (WordInsn): _fields = (f.PO(31), f.RT(), f.RA(), f.RB(), f.XO(74))
Add checks for Byte-Reverse instructions.
2 years ago
# Byte-Reverse
class BRH (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(219))
class BRW (WordInsn): _fields = (f.PO(31), f.RS(), f.RA(), f.XO_X(155))
In-depth refactoring, improved user interface. * A PowerFVSession class provides a REPL interface. Functionality is split into commands (e.g. add checks, build) which can be provided interactively or from a file. See cores/microwatt for an example of its integration. * Instruction specifications are now separated from verification testbenches. An InsnSpec class provides a behavioral model using the same PowerFV interface as a core. This interface is output-only for a core, but bidirectional for the InsnSpec: - fields related to context (e.g. read data) are inputs, - fields related to side-effects (e.g. write strobes) are outputs. The testbench is responsible for driving inputs to the same values as the core, then check outputs for equivalence. This decoupling provides a path towards using PowerFV in simulation. * Instruction encodings are now defined by their fields, not their format (which was problematic e.g. X-form has dozens of variants). Field declarations can be preset to a value, or left undefined. In the latter case, they are implicitly cast to AnyConst (which is useful for arbitrary values like immediates).
2 years ago
# Move To/From System Register
class MTMSR (WordInsn): _fields = (f.PO(31), f.RS(), f.L_X15(), f.XO_X(146))
class MFMSR (WordInsn): _fields = (f.PO(31), f.RT(), f.XO_X( 83))
class MTXER (WordInsn): _fields = (f.PO(31), f.RS(), f.SPR( 1), f.XO_XFX(467))
class MFXER (WordInsn): _fields = (f.PO(31), f.RT(), f.SPR( 1), f.XO_XFX(339))
class MTLR (WordInsn): _fields = (f.PO(31), f.RS(), f.SPR( 8), f.XO_XFX(467))
class MFLR (WordInsn): _fields = (f.PO(31), f.RT(), f.SPR( 8), f.XO_XFX(339))
class MTCTR (WordInsn): _fields = (f.PO(31), f.RS(), f.SPR( 9), f.XO_XFX(467))
class MFCTR (WordInsn): _fields = (f.PO(31), f.RT(), f.SPR( 9), f.XO_XFX(339))
class MTSRR0 (WordInsn): _fields = (f.PO(31), f.RS(), f.SPR( 26), f.XO_XFX(467))
class MFSRR0 (WordInsn): _fields = (f.PO(31), f.RT(), f.SPR( 26), f.XO_XFX(339))
class MTSRR1 (WordInsn): _fields = (f.PO(31), f.RS(), f.SPR( 27), f.XO_XFX(467))
class MFSRR1 (WordInsn): _fields = (f.PO(31), f.RT(), f.SPR( 27), f.XO_XFX(339))
class MTTAR (WordInsn): _fields = (f.PO(31), f.RS(), f.SPR(815), f.XO_XFX(467))
class MFTAR (WordInsn): _fields = (f.PO(31), f.RT(), f.SPR(815), f.XO_XFX(339))