What is the proper octal representation of the encoding of the operand register in intel 8086?...

8086 memory to accumulator encoding: why do mov al, [absolute] and mov ah, [absolute] have different...

Why encode RISCV PseudoInstruction LI to four instructions instead of two?...

What is iii, rr and mmm?...

Writing an assembler: clean and efficient way to handle x64 REX and VEX encoding?...

Why does operand 1 in a modr/m byte change depending on the decoding mode...

How to Calculate Jump Target Address and Branch Target Address?...

How to get NASM to encode `push` with a sign-extended 16-bit immediate?...

ModR/M Historical Notation /0.../7...

Why LI becomes LBU opcode after MIPS assembler...

Encoding "MOV EAX, moffs32" on x86-64...

In shift left instruction, why is rt used as source register instead of rs?...

What's the difference between the '-' and '.' in the decode of RISCV instruction...

x86_64 primary opcode byte categorization...

RISCV resolving opcode...

How to tell the length of an x86 instruction?...

How to encode an instruction when we just know the hex for opcode...

Why does RISC-V 'J-immediate' encode imm[11] in inst[20]?...

How is data width determined for load/store instructions in Rocket Core?...

Why does the opcode for MOV from a segment register not have its low bit set? It's not 8-bit ope...

Different encoding for arm64 "add x1, sp, x2, lsl #1" than with xzr...

Is "strb w0, [x2, w3, uxtw]" the same as "strb w0, [x2, w3, uxtw #0]"?...

Why the risc-v instruction "addi sp,sp,-32" is converted to binary code "11 01"?...

Opcode differences between MOV r/m32, imm32 and MOV r32, imm32...

How encode a relative short jmp in x86...

Understanding JMP Codes in Assembly...

NASM produces unexpected extra operand size prefix...

How does RISC-V variable length of instruction work in detail?...

x86 XOR opcode differences...

ARMv7E-M VCVT.F32.U32 encoding...