I am trying to execute simple multiplication in Assembly. However, I do not see the registers change when the MUL function is called. mov bx, 5 mov cx, 10 mul cx

The original (i)mul instructions are from 16-bit x86 which had come long before the 32-bit x86 instruction set appeared, so they couldn't store the result to the eax/edx since there was no E …

Oct 11, 2018 · But looking at the machine code it appears that mult is a valid R-type instruction (opcode 0) whereas mul has a nonzero opcode (0x1c) and so shouldn't be an R-type, even …

Apr 2, 2023 · The x86 mul instruction always multiplies the accumulator register (EAX, AX, or AL) by whichever operand you provide in the instruction: The dword-sized mul ecx will multiply …

I've read a few tutorials and examples, but I cannot wrap my head around how the MUL instruction works. I've used ADD and SUB without problems. So apparently this instruction …

Apr 1, 2020 · I built a matrices calculator and I want to make one mul method for multiplication by scalar And another one for multiplication by other matrix. I have an if- else block but I prefer it …

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Jan 13, 2015 · I would like to know if there is a way to perform any multiplication or division without use of MUL or DIV instruction because they require a lot of CPU cycles. Can I exploit …

Dec 7, 2013 · The parameters for HLSL's mul( x, y) indicated here: say that if x is a vector, it is treated as a row vector. if y is a vector, it is treated as a column vector. Does this then follow …