SHR command in assembly 8086

由 KR Irvine 著作 · 被引用 109 次 — The SHR (shift right) instruction performs a logical right shift on the destination operand. The highest bit position is filled with a zero. CF. 0 mov dl,80.

2008年2月15日 — Logical Shift 所用的指令為SHR(向右位移) 與SHL(向左位移)，位移的最後一個bit 會存於carry flag 中。 Arithmetic Shift 所用的指令為SAL 與SAR，專門用 ...

The SAR and SHR instructions can be used to perform signed or unsigned division, respectively, of the destination operand by powers of 2. For example, using the ...

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shr right shifts (unsigned divides) a byte, word, or long value for a count specified by an immediate value and stores the quotient in that byte, word, or long ...

2019年2月23日 — SHR command in assembly 8086 ... Now the only thing confusing me is the SHR command. I know that it will shift the value of AX 3 times but how ...

2014年6月29日 — Simply put, Shift Right. The second operand defines the amount of bits to be shifted right. So : CL = 42(in hex) = 0100 0010 (binary).

2019年12月13日 — Description · The shr or sar instruction is used to shift the bits of the operand destination to the right, by the number of bits specified in ...

今天繼續練習指令。 SHR是SHift Right往右移的意思，到底移幾位呢，這時有了之前的練習經驗，例如REP（重覆）幾次，我們會用CX，所以這個計數暫存器對於要反覆做幾次動作， ...