Revision as of 00:03, 18 July 2012 view source osdev>Virtlink m →‎Registers: Table nr fix ← Older edit		Revision as of 00:03, 18 July 2012 view source osdev>Virtlink m →‎Operand-size and address-size override prefix: Table nr fix Newer edit →
Line 125: \| rowspan="6" \| Long 64-bit mode\|\|ignored\|\|no\|\|no\|\|0\|\|32-bit\|\|64-bit \|- \| ignored\|\|no\|\|yes\|\|0\|\|32-bit<span style="vertical-align: super">[[#~~Table1Note1~~Table2Note1\|1]]</span>\|\|32-bit \|- \| ignored\|\|yes\|\|no\|\|0\|\|16-bit\|\|64-bit Line 131: \| ignored\|\|yes\|\|yes\|\|0\|\|16-bit\|\|32-bit \|- \| ignored\|\|ignored\|\|no\|\|1\|\|64-bit<span style="vertical-align: super">[[#~~Table1Note1~~Table2Note1\|1]]</span>\|\|64-bit \|- \| ignored\|\|ignored\|\|yes\|\|1\|\|64-bit\|\|32-bit \|} <small id="~~Table1Note1~~Table2Note1">1: Certain instructions default to (or are fixed at) 64-bit operands and do not need the REX prefix for this, see [[#Usage\|this table]].</small> ==== NASM ====

X86-64 Instruction Encoding: Difference between revisions