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x86-64 Assembly / Registers & Data

Immediate operand

Learn Immediate operand in x86-64 Assembly through a focused explanation, a dedicated construct-specific example, an engineering boundary, and a mastery check.

10 min read • Beginner

Immediate operand is an atomic x86-64 Assembly topic inside Registers & Data. This lesson focuses on how the Immediate operand construct is written, what it changes, and when it is the right tool.

Trace the example line by line. Identify the exact syntax for Immediate operand, the input state before it runs, and the resulting value, control flow, database state, hardware behavior, or runtime effect afterward. Neighboring lessons use different constructs rather than renamed copies of this one.

Topic-specific example

assembly-01-02-immediate-operand.asm
assembly Try It Live 
mov rax, 42
Edge case / engineering note

For Immediate operand, test the boundary that belongs to this exact feature rather than a generic failure case. Check invalid or empty input, NULL/unknown state, numeric limits, transaction or exception behavior, synthesis/runtime constraints, ownership/permission rules, or backtracking/control-flow effects where they apply.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Immediate operand Mastery Check →
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MOV register
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Memory operand