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x64 instruction encoding and the ModRM byte...


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Why does `add cx, 1234` in NASM 16 bit mode produce <unknown> with objdump?...


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How do I produce output in NASM matching `81 /0 iw` for `ADD r/m16, imm16` on x86 Assembly?...


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How to interpret x86 opcode map?...


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What do these x86 Assembly instruction codes mean?...


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Why does B 25 or BEQ 25 in ARM assembly language mean "go to PC + 8 + 100"...


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How to design a virtual cpu / instruction set: distinguish LDA $02 from LDA B...


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How to look up what form of an instruction is used, by opcode or disassembly?...


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How register is encoded in an ARM64 mov instruction?...


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How to perform the most basic gate-level operations in a computer?...


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How many bits are required to store MARIE's instruction set?...


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Properly comparing Arm machine code to assembly...


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Different representations for dot in binary...


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Explain what this assembly language program does in plain English...


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How can ARM's MOV instruction work with a large number as the second operand?...


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Do I need to recompile for another processor arc?...


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What does func means in R-Format instruction set?...


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Looking at x86 machine code, how do I determine the starting location of the next instruction?...


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Need help figuring out a segmentation fault in ARM...


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What is the "X" part of the encoding of the r8-15 registers?...


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Simple instruction encode...


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How does compiling C++ code produce machine code?...


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Matching the intel codes to disassembly output...


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How many bytes does it take to encode the assembly-code line "xorq, %rdx, %rdx"?...


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How can I see the 0s and 1s / machine code from a executable file / object file?...


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How can I tell what architecture a microprocessor is from the assembled code?...


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RISC-V: Immediate Encoding Variants...


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x86 Assembly , stack push instruction...


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