Exercise 1: Translating Intel Syntax Into AT&T Syntax — Possible Solution
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GIVEN (INTEL SYNTAX)
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MOV RAX, RCX
SUB RAX, 10

APPLYING THIS CHAPTER'S OWN TRANSLATION RULES
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Per the chapter's own table:
- Operand order reverses (source first in AT&T, not destination first)
- Registers get a % prefix
- Immediates get a $ prefix
- The mnemonic gets a size suffix — here, q for quadword (64-bit),
  matching RAX/RCX's own 64-bit width

TRANSLATING MOV RAX, RCX
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Intel: destination RAX, source RCX
AT&T:  source first, so %rcx comes first, then %rax
Result: movq %rcx, %rax

TRANSLATING SUB RAX, 10
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Intel: destination RAX, source (immediate) 10
AT&T:  source first, so $10 comes first, then %rax; immediate gets
       the $ prefix, register gets the % prefix
Result: subq $10, %rax

FULL AT&T TRANSLATION
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movq %rcx, %rax
subq $10, %rax

WHY THIS WORKS AS AN ANSWER
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It correctly reverses the operand order for both instructions (a
common point of error), correctly applies the % and $ prefixes to
registers and immediates respectively, and correctly appends the q
suffix matching the 64-bit register width used throughout — all per
the chapter's own stated conversion rules.