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AMD x86-64 Architecture Programmer's Manual, Volume 4, 128-Bit ...

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<strong>AMD</strong><strong>64</strong> Technology 26568—Rev. 3.05—September 2003<br />

RBP, and RSP registers. Replace the placeholder r with<br />

nothing for 16-bit size, “E” for 32-bit size, or “R” for <strong>64</strong>-bit<br />

size.<br />

RAX<br />

<strong>64</strong>-bit version of the EAX register.<br />

RBP<br />

<strong>64</strong>-bit version of the EBP register.<br />

RBX<br />

<strong>64</strong>-bit version of the EBX register.<br />

RCX<br />

<strong>64</strong>-bit version of the ECX register.<br />

RDI<br />

<strong>64</strong>-bit version of the EDI register.<br />

RDX<br />

<strong>64</strong>-bit version of the EDX register.<br />

rFLAGS<br />

16-bit, 32-bit, or <strong>64</strong>-bit flags register. Compare RFLAGS.<br />

RFLAGS<br />

<strong>64</strong>-bit flags register. Compare rFLAGS.<br />

rIP<br />

16-bit, 32-bit, or <strong>64</strong>-bit instruction-pointer register. Compare<br />

RIP.<br />

RIP<br />

<strong>64</strong>-bit instruction-pointer register.<br />

RSI<br />

<strong>64</strong>-bit version of the ESI register.<br />

RSP<br />

<strong>64</strong>-bit version of the ESP register.<br />

SP<br />

Stack pointer register.<br />

SS<br />

Stack segment register.<br />

xxiv Preface

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