WebMar 28, 2009 · mov byte ptr[bx],20 ;源操作数立即寻址,寄存器间接寻址 mov dl,39 ;源操作数立即数寻址,目的操作数寄存器寻址 inc bx ;寄存器寻址 ... mov word ptr[bx+si+2],2846 ;源操作数立即寻址,目的操作数相对基址加变址寻址 WebCMP BYTE PTR [SI+2],0 JZ validate_malformed ; NUL path (just d:) validate_loop: LODSB validate_loop1: IF KANJI invoke TESTKANJ JZ NOTKANJ6 INC SI JMP validate_loop ... INC BYTE PTR [NoSetDir] ; if we find a dir, don't change to it MOV WORD PTR [Creating],0E500h CALL GetPath POP CX MOV [Attrib],CL find_check: ...
设DS=8225H,DI=3942H,指令INC BYTE PTR[DI]操作数的物理地址 …
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指令 MOV BYTE PTR 〔 BX+SI 〕, 0 中目的操作数的寻址方式是 ( )
Web3 试指出下列传送类指令的寻址方式1.mov ax,100[bx][di]2.mov var[bx],ax3.mov [bp],si4.mov byte ptr[bx+si],1005.push bx; 4 计算机原理与接口技术2到题写出以下指令中内存操作数的 … WebApr 8, 2024 · Then add word ptr [freq_array + eax * 2], 1. In 32-bit code you can take advantage of its more powerful addressing modes (compared to 16-bit). Also note that your code would be unsafe if freq_array spans a 64k boundary; add si, ax could wrap without doing carry-out into the high bits of ESI. – Peter Cordes. Web• An instruction can be coded with 1 to 6 bytes • Byte 1 contains three kinds of information: – Opcode field (6 bits) specifies the operation such as add, subtract, or move – Register Direction Bit (D bit) • Tells the register operand in REG field in byte 2 is source or destination operand – 1:Data flow to the REG field from R/M how do i renew microsoft 365