InstructionUtilities.h

//
// Created by 廖治平 on 5/22/21.
//

#ifndef SYSYBACKEND_INSTRUCTIONUTILITIES_H
#define SYSYBACKEND_INSTRUCTIONUTILITIES_H

#include <string>
#include "InstructionOperands.h"

namespace Instruction::Utilities {
    /*
    * Immediate number abbr
    * */
    bool isTooLong(int32_t val);

    class ASMFormatter {
        std::string ins, opr;
        bool isLabel;

        static bool usingTab;
    public:
        ASMFormatter(const std::string &ins, const std::string &opr) : ins(ins), opr(opr), isLabel(false) { }

        ASMFormatter(const std::string &ins) : ins(ins), isLabel(true) { }

        std::string toASM() const;
    };

    namespace Abbr {
        typedef Operands::ImmediateNumber<8> imm8;
        typedef Operands::ImmediateNumber<12> imm12;
        typedef Operands::ImmediateNumber<16> imm16;
        typedef Operands::ImmediateNumber<32> imm32;
        typedef Operands::ImmediateNumber<5> imm5;
        typedef Operands::ImmediateNumber<0> offset;
        typedef Operands::ImmediateNumber<-8> offset8;

        /*
         * Register instances
         * */
        static const Operands::Register r0(R0), r1(R1), r2(R2), r3(R3),
                r4(R4), r5(R5), r6(R6), r7(R7),
                r8(R8), r9(R9), r10(R10), r11(R11),
                r12(R12), r13(R13), r14(R14), r15(R15),
                pc(PC), lr(LR), fp(FP), ip(IP),
                sp(SP);

        static const Operands::Register numToReg[] = {
                r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15
        };
    }
}

#endif //SYSYBACKEND_INSTRUCTIONUTILITIES_H