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x86-64 Assembly / Bit Operations

ROR

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

10 min read • Beginner

ROR is an atomic x86-64 Assembly topic inside Bit Operations. This lesson focuses on how the ROR construct is written, what it changes, and when it is the right tool.

Trace the example line by line. Identify the exact syntax for ROR, 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-03-09-ror.asm
assembly Try It Live 
mov al, 0b00000011
ror al, 1
Edge case / engineering note

For ROR, 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

ROR Mastery Check →
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