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movsb example
rep movsb instruction in 8086
movs instruction in arm
movsd xmm0
movs instruction in 8086
movsd assembly
rep movsd
x86 rep
Le jeu d'instructions du x86 a subi de nombreux changements au cours du temps. La plupart . un octet/mot d'une chaine vers une autre, Mnemoniques : MOVS, MOVSB, MOVSW SALC, Set AL from Carry Flag, Copie la valeur 0xFF dans le registre AL si CF .. en ) Reference NASM sur le jeu d'instruction x86 [archive].
x86 Assembly Language Reference Manual > Chapter 3 Instruction Set cmpsq valid only under -xarch=amd64. cmpsb. CMPSB. compare byte string. cmpsl.
6 Jan 2015 At the assembly-code level, two forms of this instruction are allowed: the and DI registers (based on the D flag, set CLD to increase the registers). Please note that ERMSB produces best results for REP MOVSB, not REP
Move String[edit] The movsb instruction copies one byte from the memory location specified in esi to the location specified in edi . If the direction flag is cleared, then esi and edi are incremented after the operation. Otherwise, if the direction flag is set, then the pointers are decremented.
MOVS/MOVSB/MOVSW/MOVSD: Move Data from String to String (x86 Instruction Set Reference)
28 Nov 2015 .text:00401596 lea edi, [ebp+var_118] ; destination .text:0040159C mov esi, offset unk_43F0C9 ; source (47 bytes at memory location
coder32 edition of X86 Opcode and Instruction Reference. Data from String to String. MOVSB, m8, m8 .. D6, 02+, U, SALC, AL .c, Set AL If Carry. SETALC
Each instruction works on one element and then automatically adjusts SI and/or DI; if the The MOVSB and MOVSW instructions have the following forms: ES:DI, then increments (or decrements, if the Direction flag is set) both SI and DI.
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors . CMPSB, Compare bytes in memory, 0xA6. CMPSW, Compare
Intel x86 assembly has two instructins for this: cld ("clear direction flag") and std ("set direction After the rep cmpsb, the zero flag is set if the result is equal.
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