Inc byte ptr si+3 有效地址: 物理地址 。
Web(2)mov [bp+5],ax(3)inc byte ptr [si+3](4)mov dl,es:[bx+di](5)mov bx,[bx+si+2]答:(1)指令mov al,[bx+5]中内存操作数的所在地址=(ds)*10h+(bx)+5;(2)指令mov [bp+5],ax中内存操作数 … WebDetroit Map. Detroit is the largest city in the state of Michigan and the seat of Wayne County. Detroit is a major port city on the Detroit River, in the Midwestern United States. It …
Inc byte ptr si+3 有效地址: 物理地址 。
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WebJan 30, 2010 · 将DS:BX指向的内存地址中的16位数读到AX里面。. MOV是数值传送指令,AX是目的操作数,WORD PTR表示后面的储存单元是字类型, [BX]表示用BX的值来寻址,默认段地址是DS的值。. BMCRNET 2008-03-13. MOV AX WORD PTR [BX] ;将指向 [BX]地址的内容送如AX,以字为单位. Web(2)mov [bp+5],ax(3)inc byte ptr [si+3](4)mov dl,es:[bx+di](5)mov bx,[bx+si+2]答:(1)指令mov al,[bx+5]中内存操作数的所在地址=(ds)*10h+(bx)+5;(2)指令mov [bp+5],ax中内存操作数的所在地址=(ss)*10h+(bp)+5和(ss)*10h+(bp)+6;(3)指令inc byte ptr[si+3]中内存操作数的所在地址=(ds)+(si)+3;(4)指令mov dl,es:[bx+di]中 ...
Web设DS=8225H,DI=3942H,指令INC BYTE PTR [DI] 操作数的物理地址是=(DS)×16+有效地址=82250+3942H=85B92H. INC BYTE PTR [DI]这个指令的含义:将该物理地址单元中的操作 … WebOct 11, 2003 · 15FF:0209 26FE05 INC Byte Ptr ES:[DI] 15FF:020C E2F3 LOOP 0201 15FF:020E 1E PUSH DS 15FF:020F 07 POP ES 15FF:0210 B91E00 MOV CX,001E 15FF:0213 BFED41 MOV DI,41ED 15FF:0216 BB0001 MOV BX,0100 ... 0298 movzx cx,byte ptr [si+2] 029C movzx bx,byte ptr [si+1] 02A0 mov di,cx 02A2 shl di,6 ...
WebJan 2, 2015 · 应改为:mov ax,bx moval,bl (2)moval,sl 错,si 寄存器不能分为高8 位使用,即没有sl寄存器。应改为:mov ax,si (3)inc [bx] 错,未指定操作数的类型。应改为:inc byte ptr [bx] (4)mov 5,al 错,目的操作 数使用了立即数,在指令中一般不允许。 WebNov 27, 2014 · - Để xác định rõ hoạt động của bộ nhớ, ta phải dùng thêm toán tử PTR như sau :. Hoạt động 8 bit : BYTE PTR [1000h] là tham khảo 1 byte bộ nhớ có địa. chỉ 1000h. Hoạt động 16 bit : WORD PTR [1000h] là tham khảo đến 2 …
WebDec 15, 2024 · byte ptr-> it simply means that you want to fetch a byte from the address. if it said word ptr or dword ptr, you would get a word or dword from the address in source …
Web解答一. 举报. 设DS=8225H,DI=3942H,指令INC BYTE PTR [DI] 操作数的物理地址是=(DS)×16+有效地址=82250+3942H=85B92H. INC BYTE PTR [DI]这个指令的含义:将该 … high beam h1WebApr 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. high beam h7WebApr 23, 2006 · 几个简单问题。. 鄙人实在不懂汇编 ---2-CSDN社区. 急急急!. !. !. 几个简单问题。. 鄙人实在不懂汇编 ---2. 寄存器及存储单元的内容,若该指令影响标志位(CF、OF、SF和ZF)则指出其值。. 寄存器及存储单元的内容,若该指令影响标志位(CF、OF、SF和ZF)则指出 ... how far is london from edinburgh scotlandWeb(2)mov [bp+5],ax(3)inc byte ptr [si+3](4)mov dl,es:[bx+di](5)mov bx,[bx+si+2]答:(1)指令mov al,[bx+5]中内存操作数的所在地址=(ds)*10h+(bx)+5;(2)指令mov [bp+5],ax中内存操作数的所在地址=(ss)*10h+(bp)+5和(ss)*10h+(bp)+6;(3)指令inc byte ptr[si+3]中内存操作数的所在地址=(ds)+(si)+3;(4)指令mov dl,es:[bx+di]中 ... how far is london from pittsburghWebint 21h ;do read bytes cmp byte ptr [si+18h],40h ;check relocation jb ChkFinF ;exit if not ok cmp word ptr [si+3ch],400h ;check NE offset ... inc word ptr [si+1ch] ;inc segment count mov ax,word ptr [si+1ch] ;ax=segment count dec ax ;ax=ax-1 mov cl,8 ;Assume Segs<255 mul cl ;multiply to get bytes high beam hair spray blackWeb把地址si+5处的字节变量加1。 byte ptr 表示变量是字节变量。如果不指定,编译器就不知道变量的类型。 当然,也有word ptr, dword ptr等等。 how far is london kentucky from lubbock txWebADD AX, 00FF ( AX = 010F H) ADC SI, AX (SI = 0111H) INC BYTE PTR [0100]; Byte ptr indicate the size of memory data addressed by the memory pointer (the value refers to is 10H so it becomes 11H) SUB DL, BL (DL = 40 BL =20 so result = 20H) SBB DL, [0200] (DL = 40H, [0200] refers to 30H so result is 0FH ); SBB – Subtract Byte with Borrow DEC BYTE … how far is london from the ocean