x86assembler.h

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            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_SUB, dst);
            m_formatter.immediate32(imm);
        }
    }
    
    void subl_im(int imm, int offset, RegisterID base)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_SUB, base, offset);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_SUB, base, offset);
            m_formatter.immediate32(imm);
        }
    }

#if PLATFORM(X86_64)
    void subq_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_SUB_EvGv, src, dst);
    }

    void subq_ir(int imm, RegisterID dst)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp64(OP_GROUP1_EvIb, GROUP1_OP_SUB, dst);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp64(OP_GROUP1_EvIz, GROUP1_OP_SUB, dst);
            m_formatter.immediate32(imm);
        }
    }
#else
    void subl_im(int imm, void* addr)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_SUB, addr);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_SUB, addr);
            m_formatter.immediate32(imm);
        }
    }
#endif

    void xorl_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_XOR_EvGv, src, dst);
    }

    void xorl_ir(int imm, RegisterID dst)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_XOR, dst);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_XOR, dst);
            m_formatter.immediate32(imm);
        }
    }

#if PLATFORM(X86_64)
    void xorq_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_XOR_EvGv, src, dst);
    }

    void xorq_ir(int imm, RegisterID dst)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp64(OP_GROUP1_EvIb, GROUP1_OP_XOR, dst);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp64(OP_GROUP1_EvIz, GROUP1_OP_XOR, dst);
            m_formatter.immediate32(imm);
        }
    }
#endif

    void sarl_i8r(int imm, RegisterID dst)
    {
        if (imm == 1)
            m_formatter.oneByteOp(OP_GROUP2_Ev1, GROUP2_OP_SAR, dst);
        else {
            m_formatter.oneByteOp(OP_GROUP2_EvIb, GROUP2_OP_SAR, dst);
            m_formatter.immediate8(imm);
        }
    }

    void sarl_CLr(RegisterID dst)
    {
        m_formatter.oneByteOp(OP_GROUP2_EvCL, GROUP2_OP_SAR, dst);
    }

    void shll_i8r(int imm, RegisterID dst)
    {
        if (imm == 1)
            m_formatter.oneByteOp(OP_GROUP2_Ev1, GROUP2_OP_SHL, dst);
        else {
            m_formatter.oneByteOp(OP_GROUP2_EvIb, GROUP2_OP_SHL, dst);
            m_formatter.immediate8(imm);
        }
    }

    void shll_CLr(RegisterID dst)
    {
        m_formatter.oneByteOp(OP_GROUP2_EvCL, GROUP2_OP_SHL, dst);
    }

#if PLATFORM(X86_64)
    void sarq_CLr(RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_GROUP2_EvCL, GROUP2_OP_SAR, dst);
    }

    void sarq_i8r(int imm, RegisterID dst)
    {
        if (imm == 1)
            m_formatter.oneByteOp64(OP_GROUP2_Ev1, GROUP2_OP_SAR, dst);
        else {
            m_formatter.oneByteOp64(OP_GROUP2_EvIb, GROUP2_OP_SAR, dst);
            m_formatter.immediate8(imm);
        }
    }
#endif

    void imull_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.twoByteOp(OP2_IMUL_GvEv, dst, src);
    }
    
    void imull_i32r(RegisterID src, int32_t value, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_IMUL_GvEvIz, dst, src);
        m_formatter.immediate32(value);
    }

    void idivl_r(RegisterID dst)
    {
        m_formatter.oneByteOp(OP_GROUP3_Ev, GROUP3_OP_IDIV, dst);
    }

    // Comparisons:

    void cmpl_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_CMP_EvGv, src, dst);
    }

    void cmpl_rm(RegisterID src, int offset, RegisterID base)
    {
        m_formatter.oneByteOp(OP_CMP_EvGv, src, base, offset);
    }

    void cmpl_mr(int offset, RegisterID base, RegisterID src)
    {
        m_formatter.oneByteOp(OP_CMP_GvEv, src, base, offset);
    }

    void cmpl_ir(int imm, RegisterID dst)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_CMP, dst);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_CMP, dst);
            m_formatter.immediate32(imm);
        }
    }

    void cmpl_ir_force32(int imm, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_CMP, dst);
        m_formatter.immediate32(imm);
    }

    void cmpl_im(int imm, int offset, RegisterID base)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_CMP, base, offset);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_CMP, base, offset);
            m_formatter.immediate32(imm);
        }
    }

    void cmpl_im(int imm, int offset, RegisterID base, RegisterID index, int scale)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_CMP, base, index, scale, offset);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_CMP, base, index, scale, offset);
            m_formatter.immediate32(imm);
        }
    }

    void cmpl_im_force32(int imm, int offset, RegisterID base)
    {
        m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_CMP, base, offset);
        m_formatter.immediate32(imm);
    }

#if PLATFORM(X86_64)
    void cmpq_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_CMP_EvGv, src, dst);
    }

    void cmpq_rm(RegisterID src, int offset, RegisterID base)
    {
        m_formatter.oneByteOp64(OP_CMP_EvGv, src, base, offset);
    }

    void cmpq_mr(int offset, RegisterID base, RegisterID src)
    {
        m_formatter.oneByteOp64(OP_CMP_GvEv, src, base, offset);
    }

    void cmpq_ir(int imm, RegisterID dst)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp64(OP_GROUP1_EvIb, GROUP1_OP_CMP, dst);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp64(OP_GROUP1_EvIz, GROUP1_OP_CMP, dst);
            m_formatter.immediate32(imm);
        }
    }

    void cmpq_im(int imm, int offset, RegisterID base)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp64(OP_GROUP1_EvIb, GROUP1_OP_CMP, base, offset);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp64(OP_GROUP1_EvIz, GROUP1_OP_CMP, base, offset);
            m_formatter.immediate32(imm);
        }
    }

    void cmpq_im(int imm, int offset, RegisterID base, RegisterID index, int scale)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp64(OP_GROUP1_EvIb, GROUP1_OP_CMP, base, index, scale, offset);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp64(OP_GROUP1_EvIz, GROUP1_OP_CMP, base, index, scale, offset);
            m_formatter.immediate32(imm);
        }
    }
#else
    void cmpl_rm(RegisterID reg, void* addr)
    {
        m_formatter.oneByteOp(OP_CMP_EvGv, reg, addr);
    }

    void cmpl_im(int imm, void* addr)
    {
        if (CAN_SIGN_EXTEND_8_32(imm)) {
            m_formatter.oneByteOp(OP_GROUP1_EvIb, GROUP1_OP_CMP, addr);
            m_formatter.immediate8(imm);
        } else {
            m_formatter.oneByteOp(OP_GROUP1_EvIz, GROUP1_OP_CMP, addr);
            m_formatter.immediate32(imm);
        }
    }
#endif

    void cmpw_rm(RegisterID src, int offset, RegisterID base, RegisterID index, int scale)
    {
        m_formatter.prefix(PRE_OPERAND_SIZE);
        m_formatter.oneByteOp(OP_CMP_EvGv, src, base, index, scale, offset);
    }

    void testl_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_TEST_EvGv, src, dst);
    }
    
    void testl_i32r(int imm, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_GROUP3_EvIz, GROUP3_OP_TEST, dst);
        m_formatter.immediate32(imm);
    }

    void testl_i32m(int imm, int offset, RegisterID base)
    {
        m_formatter.oneByteOp(OP_GROUP3_EvIz, GROUP3_OP_TEST, base, offset);
        m_formatter.immediate32(imm);
    }

    void testl_i32m(int imm, int offset, RegisterID base, RegisterID index, int scale)
    {
        m_formatter.oneByteOp(OP_GROUP3_EvIz, GROUP3_OP_TEST, base, index, scale, offset);
        m_formatter.immediate32(imm);
    }

#if PLATFORM(X86_64)
    void testq_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_TEST_EvGv, src, dst);
    }

    void testq_i32r(int imm, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_GROUP3_EvIz, GROUP3_OP_TEST, dst);
        m_formatter.immediate32(imm);
    }

    void testq_i32m(int imm, int offset, RegisterID base)
    {
        m_formatter.oneByteOp64(OP_GROUP3_EvIz, GROUP3_OP_TEST, base, offset);
        m_formatter.immediate32(imm);
    }

    void testq_i32m(int imm, int offset, RegisterID base, RegisterID index, int scale)
    {
        m_formatter.oneByteOp64(OP_GROUP3_EvIz, GROUP3_OP_TEST, base, index, scale, offset);
        m_formatter.immediate32(imm);
    }
#endif 

    void testb_i8r(int imm, RegisterID dst)
    {
        m_formatter.oneByteOp8(OP_GROUP3_EbIb, GROUP3_OP_TEST, dst);
        m_formatter.immediate8(imm);
    }

    void setCC_r(Condition cond, RegisterID dst)
    {
        m_formatter.twoByteOp8(setccOpcode(cond), (GroupOpcodeID)0, dst);
    }

    void sete_r(RegisterID dst)
    {
        m_formatter.twoByteOp8(setccOpcode(ConditionE), (GroupOpcodeID)0, dst);
    }

    void setz_r(RegisterID dst)
    {
        sete_r(dst);
    }

    void setne_r(RegisterID dst)
    {
        m_formatter.twoByteOp8(setccOpcode(ConditionNE), (GroupOpcodeID)0, dst);
    }

    void setnz_r(RegisterID dst)
    {
        setne_r(dst);
    }

    // Various move ops:

    void cdq()
    {
        m_formatter.oneByteOp(OP_CDQ);
    }

    void xchgl_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_XCHG_EvGv, src, dst);
    }

#if PLATFORM(X86_64)
    void xchgq_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_XCHG_EvGv, src, dst);
    }
#endif

    void movl_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_MOV_EvGv, src, dst);
    }
    
    void movl_rm(RegisterID src, int offset, RegisterID base)
    {
        m_formatter.oneByteOp(OP_MOV_EvGv, src, base, offset);
    }

    void movl_rm_disp32(RegisterID src, int offset, RegisterID base)
    {
        m_formatter.oneByteOp_disp32(OP_MOV_EvGv, src, base, offset);
    }

    void movl_rm(RegisterID src, int offset, RegisterID base, RegisterID index, int scale)
    {
        m_formatter.oneByteOp(OP_MOV_EvGv, src, base, index, scale, offset);
    }
    
    void movl_mEAX(void* addr)
    {
        m_formatter.oneByteOp(OP_MOV_EAXOv);
#if PLATFORM(X86_64)
        m_formatter.immediate64(reinterpret_cast<int64_t>(addr));
#else
        m_formatter.immediate32(reinterpret_cast<int>(addr));
#endif
    }

    void movl_mr(int offset, RegisterID base, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_MOV_GvEv, dst, base, offset);
    }

    void movl_mr_disp32(int offset, RegisterID base, RegisterID dst)
    {
        m_formatter.oneByteOp_disp32(OP_MOV_GvEv, dst, base, offset);
    }

    void movl_mr(int offset, RegisterID base, RegisterID index, int scale, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_MOV_GvEv, dst, base, index, scale, offset);
    }

    void movl_i32r(int imm, RegisterID dst)
    {
        m_formatter.oneByteOp(OP_MOV_EAXIv, dst);
        m_formatter.immediate32(imm);
    }

    void movl_i32m(int imm, int offset, RegisterID base)
    {
        m_formatter.oneByteOp(OP_GROUP11_EvIz, GROUP11_MOV, base, offset);
        m_formatter.immediate32(imm);
    }

    void movl_EAXm(void* addr)
    {
        m_formatter.oneByteOp(OP_MOV_OvEAX);
#if PLATFORM(X86_64)
        m_formatter.immediate64(reinterpret_cast<int64_t>(addr));
#else
        m_formatter.immediate32(reinterpret_cast<int>(addr));
#endif
    }

#if PLATFORM(X86_64)
    void movq_rr(RegisterID src, RegisterID dst)
    {
        m_formatter.oneByteOp64(OP_MOV_EvGv, src, dst);
    }

    void movq_rm(RegisterID src, int offset, RegisterID base)