pkNX/pkNX.Structures/Scripts/AmxOpCode.cs

using System.Diagnostics;

namespace pkNX.Structures
{
    // https://github.com/gameswop/mtasa-resources/blob/d557a72fefef57ac34780a76edf16383d3dff0e8/%5Bgamemodes%5D/%5Bamx%5D/amx-deps/src/amx/amx.c#L143
    public enum AmxOpCode
    {
        NONE,              /* invalid opcode */
        LOAD_PRI,
        LOAD_ALT,
        LOAD_S_PRI,
        LOAD_S_ALT,
        LREF_PRI,
        LREF_ALT,
        LREF_S_PRI,
        LREF_S_ALT,
        LOAD_I,
        LODB_I,
        CONST_PRI,
        CONST_ALT,
        ADDR_PRI,
        ADDR_ALT,
        STOR_PRI,
        STOR_ALT,
        STOR_S_PRI,
        STOR_S_ALT,
        SREF_PRI,
        SREF_ALT,
        SREF_S_PRI,
        SREF_S_ALT,
        STOR_I,
        STRB_I,
        LIDX,
        LIDX_B,
        IDXADDR,
        IDXADDR_B,
        ALIGN_PRI,
        ALIGN_ALT,
        LCTRL,
        SCTRL,
        MOVE_PRI,
        MOVE_ALT,
        XCHG,
        PUSH_PRI,
        PUSH_ALT,
        PICK,
        PUSH_C,
        PUSH,
        PUSH_S,
        POP_PRI,
        POP_ALT,
        STACK,
        HEAP,
        PROC,
        RET,
        RETN,
        CALL,
        CALL_PRI,
        JUMP,
        JREL,    /* obsolete */
        JZER,
        JNZ,
        JEQ,
        JNEQ,
        JLESS,
        JLEQ,
        JGRTR,
        JGEQ,
        JSLESS,
        JSLEQ,
        JSGRTR,
        JSGEQ,
        SHL,
        SHR,
        SSHR,
        SHL_C_PRI,
        SHL_C_ALT,
        SHR_C_PRI,
        SHR_C_ALT,
        SMUL,
        SDIV,
        SDIV_ALT,
        UMUL,
        UDIV,
        UDIV_ALT,
        ADD,
        SUB,
        SUB_ALT,
        AND,
        OR,
        XOR,
        NOT,
        NEG,
        INVERT,
        ADD_C,
        SMUL_C,
        ZERO_PRI,
        ZERO_ALT,
        ZERO,
        ZERO_S,
        SIGN_PRI,
        SIGN_ALT,
        EQ,
        NEQ,
        LESS,
        LEQ,
        GRTR,
        GEQ,
        SLESS,
        SLEQ,
        SGRTR,
        SGEQ,
        EQ_C_PRI,
        EQ_C_ALT,
        INC_PRI,
        INC_ALT,
        INC,
        INC_S,
        INC_I,
        DEC_PRI,
        DEC_ALT,
        DEC,
        DEC_S,
        DEC_I,
        MOVS,
        CMPS,
        FILL,
        HALT,
        BOUNDS,
        SYSREQ_PRI,
        SYSREQ_C,
        FILE,    /* obsolete */
        LINE,    /* obsolete */
        SYMBOL,  /* obsolete */
        SRANGE,  /* obsolete */
        JUMP_PRI,
        SWITCH,
        CASETBL,
        SWAP_PRI,
        SWAP_ALT,
        PUSH_ADR,
        NOP,
        SYSREQ_N,
        SYMTAG,  /* obsolete */
        BREAK,   /* macro instructions */
        PUSH2_C,
        PUSH2,
        PUSH2_S,
        PUSH2_ADR,
        PUSH3_C,
        PUSH3,
        PUSH3_S,
        PUSH3_ADR,
        PUSH4_C,
        PUSH4,
        PUSH4_S,
        PUSH4_ADR,
        PUSH5_C,
        PUSH5,
        PUSH5_S,
        PUSH5_ADR,
        LOAD_BOTH,
        LOAD_S_BOTH,
        CONST,
        CONST_S,   /* overlay instructions */
        ICALL,
        IRETN,
        ISWITCH,
        ICASETBL,   /* packed instructions */
#if !AMX_NO_PACKED_OPC
        LOAD_P_PRI,
        LOAD_P_ALT,
        LOAD_P_S_PRI,
        LOAD_P_S_ALT,
        LREF_P_PRI,
        LREF_P_ALT,
        LREF_P_S_PRI,
        LREF_P_S_ALT,
        LODB_P_I,
        CONST_P_PRI,
        CONST_P_ALT,
        ADDR_P_PRI,
        ADDR_P_ALT,
        STOR_P_PRI,
        STOR_P_ALT,
        STOR_P_S_PRI,
        STOR_P_S_ALT,
        SREF_P_PRI,
        SREF_P_ALT,
        SREF_P_S_PRI,
        SREF_P_S_ALT,
        STRB_P_I,
        LIDX_P_B,
        IDXADDR_P_B,
        ALIGN_P_PRI,
        ALIGN_P_ALT,
        PUSH_P_C,
        PUSH_P,
        PUSH_P_S,
        STACK_P,
        HEAP_P,
        SHL_P_C_PRI,
        SHL_P_C_ALT,
        SHR_P_C_PRI,
        SHR_P_C_ALT,
        ADD_P_C,
        SMUL_P_C,
        ZERO_P,
        ZERO_P_S,
        EQ_P_C_PRI,
        EQ_P_C_ALT,
        INC_P,
        INC_P_S,
        DEC_P,
        DEC_P_S,
        MOVS_P,
        CMPS_P,
        FILL_P,
        HALT_P,
        BOUNDS_P,
        PUSH_P_ADR,
#endif
        /* ----- */
        SYSREQ_D,
        SYSREQ_ND,   /* ----- */
        NUM_OPCODES
    }

    public static class AmxOpCodeExtensions
    {
        public static AmxOpCode Invert(this AmxOpCode spop)
        {
            switch (spop)
            {
                case AmxOpCode.JSLEQ:
                    return AmxOpCode.JSGRTR;
                case AmxOpCode.JSLESS:
                    return AmxOpCode.JSGEQ;
                case AmxOpCode.JSGRTR:
                    return AmxOpCode.JSLEQ;
                case AmxOpCode.JSGEQ:
                    return AmxOpCode.JSLESS;
                case AmxOpCode.JEQ:
                    return AmxOpCode.JNEQ;
                case AmxOpCode.JNEQ:
                    return AmxOpCode.JEQ;
                case AmxOpCode.JNZ:
                    return AmxOpCode.JZER;
                case AmxOpCode.JZER:
                    return AmxOpCode.JNZ;
                case AmxOpCode.SLEQ:
                    return AmxOpCode.SGRTR;
                case AmxOpCode.SLESS:
                    return AmxOpCode.SGEQ;
                case AmxOpCode.SGRTR:
                    return AmxOpCode.SLEQ;
                case AmxOpCode.SGEQ:
                    return AmxOpCode.SLESS;
                case AmxOpCode.EQ:
                    return AmxOpCode.NEQ;
                case AmxOpCode.NEQ:
                    return AmxOpCode.EQ;
                default:
                    Trace.Fail(nameof(spop));
                    return spop;
            }
        }
    }
}