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C++ emitByte函数代码示例

本文整理汇总了C++中emitByte函数的典型用法代码示例。如果您正苦于以下问题：C++ emitByte函数的具体用法？C++ emitByte怎么用？C++ emitByte使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了emitByte函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: trap

void Assembler::movsd(XMMRegister src, Indirect dest) {
    int rex = 0;
    int src_idx = src.regnum;
    int dest_idx = dest.base.regnum;

    if (src_idx >= 8) {
        rex |= REX_R;
        src_idx -= 8;
    }
    if (dest_idx >= 8) {
        trap();
        rex |= REX_B;
        dest_idx -= 8;
    }

    emitByte(0xf2);
    if (rex)
        emitRex(rex);
    emitByte(0x0f);
    emitByte(0x11);

    bool needssib = (dest_idx == 0b100);
    int mode = getModeFromOffset(dest.offset, dest_idx);
    emitModRM(mode, src_idx, dest_idx);

    if (needssib)
        emitSIB(0b00, 0b100, dest_idx);

    if (mode == 0b01) {
        emitByte(dest.offset);
    } else if (mode == 0b10) {
        emitInt(dest.offset, 4);
    }
}
开发者ID:ChinaQuants，项目名称:pyston，代码行数:34，代码来源:assembler.cpp

示例2: assert

void Assembler::incl(Indirect mem) {
    int src_idx = mem.base.regnum;

    int rex = 0;
    if (src_idx >= 8) {
        rex |= REX_B;
        src_idx -= 8;
    }

    assert(src_idx >= 0 && src_idx < 8);

    bool needssib = (src_idx == 0b100);

    if (rex)
        emitRex(rex);
    emitByte(0xff);

    assert(-0x80 <= mem.offset && mem.offset < 0x80);
    if (mem.offset == 0) {
        emitModRM(0b00, 0, src_idx);
        if (needssib)
            emitSIB(0b00, 0b100, src_idx);
    } else {
        emitModRM(0b01, 0, src_idx);
        if (needssib)
            emitSIB(0b00, 0b100, src_idx);
        emitByte(mem.offset);
    }
}
开发者ID:ChinaQuants，项目名称:pyston，代码行数:29，代码来源:assembler.cpp

示例3: emitMOVZX_EAX_WORD

static void emitMOVZX_EAX_WORD( int off )       // movzx eax,off[ecx]
{
    emitByte( 0x0f );
    emitByte( 0xb7 );
    emitByte( 0x41 );
    emitByte( off );
}
开发者ID:jossk，项目名称:open-watcom-v2，代码行数:7，代码来源:cb.c

示例4: emitByte

void Assembler::decq(Immediate imm) {
    emitByte(0x48);
    emitByte(0xff);
    emitByte(0x0c);
    emitByte(0x25);
    emitInt(imm.val, 4);
}
开发者ID:ChinaQuants，项目名称:pyston，代码行数:7，代码来源:assembler.cpp

示例5: RELEASE_ASSERT

void Assembler::emitArith(Immediate imm, Register r, int opcode) {
    // assert(r != RSP && "This breaks unwinding, please don't use.");

    int64_t amount = imm.val;
    RELEASE_ASSERT((-1L << 31) <= amount && amount < (1L << 31) - 1, "");
    assert(0 <= opcode && opcode < 8);

    int rex = REX_W;

    int reg_idx = r.regnum;
    if (reg_idx >= 8) {
        rex |= REX_B;
        reg_idx -= 8;
    }

    emitRex(rex);
    if (-0x80 <= amount && amount < 0x80) {
        emitByte(0x83);
        emitModRM(0b11, opcode, reg_idx);
        emitByte(amount);
    } else {
        emitByte(0x81);
        emitModRM(0b11, opcode, reg_idx);
        emitInt(amount, 4);
    }
}
开发者ID:rainwoodman，项目名称:pyston，代码行数:26，代码来源:assembler.cpp

示例6: assert

void Assembler::cmp(Indirect mem, Immediate imm) {
    int64_t val = imm.val;
    assert((-1L << 31) <= val && val < (1L << 31) - 1);

    int src_idx = mem.base.regnum;

    int rex = REX_W;
    if (src_idx >= 8) {
        rex |= REX_B;
        src_idx -= 8;
    }

    assert(src_idx >= 0 && src_idx < 8);

    emitRex(rex);
    emitByte(0x81);

    assert(-0x80 <= mem.offset && mem.offset < 0x80);
    if (mem.offset == 0) {
        emitModRM(0b00, 7, src_idx);
    } else {
        emitModRM(0b01, 7, src_idx);
        emitByte(mem.offset);
    }

    emitInt(val, 4);
}
开发者ID:rainwoodman，项目名称:pyston，代码行数:27，代码来源:assembler.cpp

示例7: RELEASE_ASSERT

void Assembler::emitArith(Immediate imm, Register r, int opcode, MovType type) {
    // assert(r != RSP && "This breaks unwinding, please don't use.");

    int64_t amount = imm.val;
    RELEASE_ASSERT(fitsInto<int32_t>(amount), "");
    assert(0 <= opcode && opcode < 8);

    assert(type == MovType::Q || type == MovType::L);
    int rex = type == MovType::Q ? REX_W : 0;

    int reg_idx = r.regnum;
    if (reg_idx >= 8) {
        rex |= REX_B;
        reg_idx -= 8;
    }

    if (rex)
        emitRex(rex);
    if (-0x80 <= amount && amount < 0x80) {
        emitByte(0x83);
        emitModRM(0b11, opcode, reg_idx);
        emitByte(amount);
    } else {
        emitByte(0x81);
        emitModRM(0b11, opcode, reg_idx);
        emitInt(amount, 4);
    }
}
开发者ID:ChinaQuants，项目名称:pyston，代码行数:28，代码来源:assembler.cpp

示例8: emitWord

static void emitWord( unsigned short word )
{
    char        hi,lo;

    hi = word >> 8;
    lo = word & 0xff;

    emitByte( lo );
    emitByte( hi );
}
开发者ID:jossk，项目名称:open-watcom-v2，代码行数:10，代码来源:cb.c

示例9: actionsDir1

void
actionsDir1(opcodeTableEntryType *opcode, int numberOfOperands, valueType **evaluatedOperands)
{
#define	ZERO_PAGE_ADDRESS_BIT		0x00
#define NON_ZERO_PAGE_ADDRESS_BIT	0x08

	if(class==EXPRESSION_OPND && isByteAddress(operand) &&
			isDefined(operand)){
		emitByte(binary | ZERO_PAGE_ADDRESS_BIT);
		emitByte(address);
	} else if (wordCheck(address)) {
开发者ID:Museum-of-Art-and-Digital-Entertainment，项目名称:macross，代码行数:11，代码来源:actions_6502.c

示例10: assert

void Assembler::jmp(JumpDestination dest) {
    assert(dest.type == JumpDestination::FROM_START);
    int offset = dest.offset - (addr - start_addr) - 2;

    if (offset >= -0x80 && offset < 0x80) {
        emitByte(0xeb);
        emitByte(offset);
    } else {
        offset -= 3;
        emitByte(0xe9);
        emitInt(offset, 4);
    }
}
开发者ID:kod3r，项目名称:pyston，代码行数:13，代码来源:assembler.cpp

示例11: emitCode

/*
 * emitCode - generate callback code for a specified argument list
 */
static int emitCode( int argcnt, int bytecnt, char *array,
                     DWORD fn, int is_cdecl )
{
    int         i;
    int         offset;

    emitOffset = 0;
    emitMOV_EBX_const( fn );            // 32-bit callback routine

    /*
     * emit code to push parms from 16-bit stack onto 32-bit stack
     */
    offset = bytecnt + 6;
    if( is_cdecl ) {
        i = argcnt-1;
    } else {
        i = 0;
    }
    while( argcnt > 0 ) {
        if( array[i] == CB_DWORD ) {
            offset -= 4;
            emitMOV_EAX_DWORD( offset );
        } else {
            offset -= 2;
            emitMOVZX_EAX_WORD( offset );
        }
        emitByte( PUSH_EAX );
        if( is_cdecl ) {
            i--;
        } else {
            i++;
        }
        --argcnt;
    }
    emitByte( PUSH_ES );
    emitByte( POP_DS );
    emitByte( PUSH_CS );
    emitCALL_EBX();
    if( is_cdecl ) {
        emitADD_ESP_const( bytecnt );
        emitMOV_DL_const( 0 );
    } else {
        emitMOV_DL_const( bytecnt );
    }
    emitByte( RET );

    return( emitOffset );

} /* emitCode */
开发者ID:jossk，项目名称:open-watcom-v2，代码行数:52，代码来源:cb.c

示例12: process_org

void process_org()
{
    int64_t new_address;

    NextToken();
    new_address = expr();
    if (!rel_out) {
        if (segment==bssseg || segment==tlsseg) {
            bss_address = new_address;
            sections[segment].address = new_address;
        }
        else {
            if (first_org && segment==codeseg) {
               code_address = new_address;
               start_address = new_address;
               sections[0].address = new_address;
               first_org = 0;
            }
            else {
                while(sections[0].address < new_address)
                    emitByte(0x00);
            }
        }
    }
    ScanToEOL();
}
开发者ID:NoSuchProcess，项目名称:Cores，代码行数:26，代码来源:main.c

示例13: assert

void Assembler::jmp(Indirect dest) {
    int reg_idx = dest.base.regnum;

    assert(reg_idx >= 0 && reg_idx < 8 && "not yet implemented");
    emitByte(0xFF);
    if (dest.offset == 0) {
        emitModRM(0b00, 0b100, reg_idx);
    } else if (-0x80 <= dest.offset && dest.offset < 0x80) {
        emitModRM(0b01, 0b100, reg_idx);
        emitByte(dest.offset);
    } else {
        assert((-1L << 31) <= dest.offset && dest.offset < (1L << 31) - 1);
        emitModRM(0b10, 0b100, reg_idx);
        emitInt(dest.offset, 4);
    }
}
开发者ID:jmgc，项目名称:pyston，代码行数:16，代码来源:assembler.cpp

示例14: process_fill

void process_fill()
{
    char sz = 'b';
    int64_t count;
    int64_t val;
    int64_t nn;

    if (*inptr=='.') {
        inptr++;
        if (strchr("bchwBCHW",*inptr)) {
            sz = tolower(*inptr);
            inptr++;
        }
        else
            printf("Illegal fill size.\r\n");
    }
    SkipSpaces();
    NextToken();
    count = expr();
    prevToken();
    need(',');
    NextToken();
    val = expr();
    prevToken();
    for (nn = 0; nn < count; nn++)
        switch(sz) {
        case 'b': emitByte(val); break;
        case 'c': emitChar(val); break;
        case 'h': emitHalf(val); break;
        case 'w': emitWord(val); break;
        }
}
开发者ID:NoSuchProcess，项目名称:Cores，代码行数:32，代码来源:main.c

示例15: trap

void Assembler::movsd(Indirect src, XMMRegister dest) {
    int rex = 0;
    int src_idx = src.base.regnum;
    int dest_idx = dest.regnum;

    if (src_idx >= 8) {
        trap();
        rex |= REX_R;
        src_idx -= 8;
    }
    if (dest_idx >= 8) {
        trap();
        rex |= REX_B;
        dest_idx -= 8;
    }

    emitByte(0xf2);
    if (rex)
        emitRex(rex);
    emitByte(0x0f);
    emitByte(0x10);

    bool needssib = (src_idx == 0b100);

    int mode;
    if (src.offset == 0)
        mode = 0b00;
    else if (-0x80 <= src.offset && src.offset < 0x80)
        mode = 0b01;
    else
        mode = 0b10;

    emitModRM(mode, dest_idx, src_idx);

    if (needssib)
        emitSIB(0b00, 0b100, src_idx);

    if (mode == 0b01) {
        emitByte(src.offset);
    } else if (mode == 0b10) {
        emitInt(src.offset, 4);
    }
}
开发者ID:kod3r，项目名称:pyston，代码行数:43，代码来源:assembler.cpp


注：本文中的emitByte函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。