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Yehowshua Immanuel 2025-02-12 23:54:15 -05:00
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hs/Decode/Opcodes.hs Normal file
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE NumericUnderscores #-}
module Decode.Opcodes(Opcode(..)) where
import Clash.Prelude
import Data.Functor.Contravariant (Op)
type FUNCT7 = Unsigned 7
type RS2 = Unsigned 5
type RS1 = Unsigned 5
type FUNCT3 = Unsigned 3
type RD = Unsigned 5
type OPCODE = Unsigned 7
type IMM12 = Unsigned 12
type IMM13 = Unsigned 13
type IMM20 = Unsigned 20
type IMM21 = Unsigned 21
data RTypeFields = RTypeFields OPCODE RD FUNCT3 RS1 RS2 FUNCT7
data ITypeFields = ITypeFields OPCODE RD FUNCT3 RS1 IMM12
data STypeFields = STypeFields OPCODE FUNCT3 RS1 RS2 IMM12
data BTypeFields = BTypeFields OPCODE FUNCT3 RS1 RS2 IMM13
data UTypeFields = UTypeFields OPCODE RD IMM20
data JTypeFields = JTypeFields OPCODE RD IMM21
data Opcode
= ADD RTypeFields
| SUB RTypeFields
| XOR RTypeFields
| OR RTypeFields
| AND RTypeFields
| SLL RTypeFields
| SRL RTypeFields
| SRA RTypeFields
| SLT RTypeFields
| SLTU RTypeFields
| ADDRI ITypeFields
| XORI ITypeFields
| ORI ITypeFields
| ANDI ITypeFields
| SLLI ITypeFields
| SRLI ITypeFields
| SRAI ITypeFields
| SLTI ITypeFields
| SLTIU ITypeFields
| LB ITypeFields
| LH ITypeFields
| LW ITypeFields
| LBU ITypeFields
| LHU ITypeFields