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movsb example
rep movsb instruction in 8086
scasb instruction in 8086
rep instruction in 8086
string instructions examples in assembly language
repne instruction in 8086
string instruction in 8086
repne scasb instruction
String Instructions. ? The registers(DI,SI) are automatically incremented or decremented depending on the value of the direction flag: ? DF="0", increment SI, DI.
The string instructions operate on strings of bytes. Operations include storing strings in memory, loading strings from memory, comparing strings, and scanning
Each string instruction may require a source operand, a destination operand or both. For 32-bit segments, string instructions use ESI and EDI registers to point to
String Instructions. All string op mnemonics default to long. Move Data from String to String (movs). movs{bwl} movs{bwl} m[8|16|32], reg[16|32]. Operation.
ICS 312 String Instructions. Textbook Reading (Jones): Chapter 17. String - a byte or word array. Operations that can be performed with string instructions:.
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The String Instructions. Module 11. CS 272. Sam Houston State University Dr. Tim McGuire. String Instructions. A string is simply an array of bytes or words; Here
String Instructions. The string instructions facilitate operations on sequences of bytes or words. None of them take an explicit operand; instead, they all work implicitly on the source and/or destination strings.
For character strings, use the CMPS instruction in the following manner: The direction flag must be cleared before comparing the strings. Use the CMPSB instruction to compare the strings on a byte by byte basis. You must load the ECX register with the length of the smaller string. Use the REPE prefix.
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