Shr edx cl
CL is the low byte of ECX. Your second version looks right if you remove the nonsensical mov cl, ecx. Since numB is 32 bits, you have to use it with 32-bit registers. (Or maybe sub cl, byte ptr numB to only load the low byte, since SHR masks the shift count anyway.) – Peter Cordes Nov 22, 2016 at 22:28 Add a comment 1 Answer Sorted by: 1 WebThis guide describes the basics of 32-bit x86 assembly language programming, covering a small but useful subset of the available instructions and assembler directives. There are several different assembly languages for generating x86 machine code. The one we will use in CS216 is the Microsoft Macro Assembler (MASM) assembler.
Shr edx cl
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WebDec 7, 2024 · The subsequent shr edx,cl instruction shifts the value in register EDX (which contains argument value a) right by the number of bits specified in register CL. This result is then saved to the memory location pointed to by register R9, which contains a pointer to the memory location specified by a_shr. Webshr EDX , CL add EBP 4 cmp R11D, EBP cmovbe EBP , xor R15D , R15D and EDX , f mov [ RSI + 10 ], EBP jz 138e3c 0x138d5c mov EAX , EBP shr EAX 3 movzx EAX , [ R10 + RAX * 1 ] mov ECX , EBP and CL, 7 shr EAX and EAX , 1 xor ECX cmp EBP , R11D setl CL add ECX , ...
WebOct 26, 2015 · $ LL3@HUF_readDT:; 1034 : rankVal[consumed][w] = rankVal[0][w] >> consumed; 00221 41 8b 11 mov edx, DWORD PTR [r9] 00224 8b c8 mov ecx, eax 00226 ff c0 inc eax 00228 d3 ea shr edx, cl 0022a 4d 8d 40 44 lea r8, QWORD PTR [r8 + 68] 0022e 41 89 50 bc mov DWORD PTR [r8-68], edx 00232 41 3b c3 cmp eax, r11d 00235 76 ea jbe … WebMay 16, 2024 · This arithmetic shift operation confuses me. Understand that it's taking the value of eax in hex then shifting it to the right by 6 and the same for the next operation by …
WebedX is the education movement for restless learners. We’ve brought together over 40 million learners, the majority of top-ranked universities in the world, and industry-leading … Webmov eax, [esp+4] test eax, eax, jnz positive ret ; Return immediately when input is 0 positive: mov ecx, eax shl ecx or eax, ecx bsr ecx, eax ; Get highest bit for later adjustment xor edx, …
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WebDemonstrating your knowledge is a critical part of learning. edX courses and programs provide a space to practice with quizzes, open response assessments, virtual … chick fil a spokane wa menuWebMay 17, 2024 · 1. sar eax, 6 ... sar eax, 0x1f. This arithmetic shift operation confuses me. Understand that it's taking the value of eax in hex then shifting it to the right by 6 and the same for the next operation by 0x1f. See what the end result is, but still looking to better understand what's happening with these Shift Operations. chick fil a spokespersonWebNov 2, 2008 · Offline MapleStory Client Emulator. Contribute to Elem8100/MapleStory-GM-Client development by creating an account on GitHub. Skip to contentToggle navigation Sign up Product Actions Automate any workflow Packages Host and manage packages Security Find and fix vulnerabilities Codespaces gorefiend\u0027s grasp macrogorefiend\u0027s cloak wow tbcWebMay 27, 2024 · add edx,1 add edx,1 shl edx, cl add edx,1 add edx,1. sub rax, 1 jnz .loop. perf counters from an otherwise-idle i7-6700k, using ocperf.py. Without the SHL, the loop of course runs at the expected 4c per iter. The SHL slows it down by 1.229 cycles, not 2. Haswell goes from 4c to 5.296c, so the slowdown is higher (~1.30 instead of ~1.23). gorefiend\\u0027s armor tbcWebSHETH VIDYA MANDIR . PRE_PRIMARY. 09-08-22 Muharram Holiday; 11-08-22 Rakshabandhan Holiday; 15-08-22 Independence Day gorefiend\\u0027s cloak tbcWebApr 12, 2009 · And if, for some reason, you don't find some instructions useful then you always have the option of not using them. I know how compelling it feels to use ALL of the CPU without wasting bits of it, but if you can find the inner strength then you will find it is possible to write code that does not use EVERY instruction that the CPU is capable of. gorefield t shirt