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the dataStack endsTable SegmentDB DUP (' Year Summ ne?? ‘)Table EndsCODESG segmentStart:mov ax, data; Initialize DS segment Register to dataMOV ds, axmov ax, table; Initialize the ES segment register to tableMOV es, axmov ax, stack; initialize SS segment register to Stackmov ss, axmov sp, 10H; initialize SS-Stack-segment pointer spMOV bx, 0; Use BX to control the row movement of table data, move 16 bytes a

migrated, jump to high address to continue running.!! Initseg is the base address. Go is an offset.!! After the migration, the relative updates the values of some registers.Go:mov Ax,csMOV Ds,axMOV Es,ax! Put stack at 0x9ff00.MOV Ss,axmov sp, #0xFF00! Arbitrary value >>512 ! Load the setup-sectors directly after the bootblock.! Note which ' es ' is already set up. !! The code starting from Load_setup is to read SETUP.S into memory, in a position that follows Bootsect.!! Use 0x13 interrupts to c

type of CPU register for "assembly language" 1. General Register: AX, BX, CX, DX AX: Cumulative register, BX: Base Register, CX: Count register, DX: Data register Ax,bx,cx,dx each of the 16-bit 2bytes registers, where Ax is divided into Ah and al, and BX can be divided into BH and bl,cx and DX is also the same, and A

DW?Name dB 10 DUP (10)MoV ax, SEG ScopeMoV BX, SEG nameNow the value of ax is equal to the value of BX, because name and scope are defined in the same segment. 2 offset attribute OperatorsOffset returns the number of bytes from the base address of the specified identifier segment. Generally,ProgramThe member only pays attention to the offset of the memory variable, but seldom pays attention to the offset

, 0ahD10 dB 'enter anykey to enter the password. $'D11 dB 'enter anykey to enter the password again. $'D12 dB 'error: Two password is not alike! $'D13 dB 'the hdlock had been installed, please remember you password !!! $'D14 dB 'the hdlock had been removed. $'Data endsCode segmentAssume Cs: code, DS: data, ES: DataStart:MoV ax, DataMoV ds, axMoV es, axMoV dx, offset D9MoV ah, 09 hInt 21 hMoV ah, 00 hInt 16 h; Determine whether the hard disk lock program has been installedNext:MoV ax, 0201 h; rea

Getting started with crazy summer vacation Study Notes (5)-a program containing multiple segments Reference: Chapter 6th of Assembly Language 1. Use Data in the code. assume cs:codecode segmentdw 0123h,0456h,0789h,0defhmov ax,0mov bx,0mov ax,4c00Hint 21hcode endsend DW indicates defining the font data and DB indicates defining the byte data. The above code is compiled and connected, and debug is used.-U Cs: 0 is used to view the assembly co

The following code is extracted from the kesion system. It is really good and supports the utf8 format. Copy codeThe Code is as follows: '================================================ ========== 'Function name: URLDecode 'Usage: URL Decoding '================================================ ========== Function URLDecode (ByVal urlcode) Dim start, final, length, char, I, butf8, pass Dim leftstr, rightstr, finalstr Dim b0, b1, bx, blength, position,

1,Assembly instructions: With the corresponding machine code instructions, are compiled into machine instructions, and ultimately by the CPU execution.Pseudo-directive: The compiler executes instructions that the compiler performs related to the compilation work.2,Segment and ends define the beginning of a segment, instructions, data, and stacks are divided into different stacks.End indicates a assembler ending, assume assumes that a section register is associated with a segment defined by Segme

matter, the code is one of the best-used structures I've ever seen for binary rules. For 2-bit errors, the last number is still generated according to the above rules, but at this point it is not possible to determine which one is the error, but the generation is the number is not always 0. Contradiction If a two-bit error occurs, the number generated is 0. BX and by errors 1, if

addressing modeThe operand required by the instruction is stored in a register, or the target operand is deposited in a register. The address of the register (that is, the mnemonic of the register) that is indicated in the instruction is called the registers addressing method.The registers that can be referenced in the directive and their symbolic names are as follows:8-bit registers are: AH, AL, BH, BL, CH, CL, dh and DL, etc.;16-bit registers are: AX, BX