X86-64 Instruction Encoding: Difference between revisions

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→‎Registers: Renamed x87 to ST
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! X.Reg!! 8-bit GP!! 16-bit GP!! 32-bit GP!! 64-bit GP!! 80-bit x87!! 64-bit MMX!! 128-bit XMM!! 256-bit YMM!! 16-bit Segment!! 32-bit Control!! 32-bit Debug
! X.Reg!! 8-bit GP!! 16-bit GP!! 32-bit GP!! 64-bit GP!! 80-bit x87!! 64-bit MMX!! 128-bit XMM!! 256-bit YMM!! 16-bit Segment!! 32-bit Control!! 32-bit Debug
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| b0.000 (0)||AL||AX||EAX||RAX||FPR0||MMX0||XMM0||YMM0||ES||CR0||DR0
| b0.000 (0)||AL||AX||EAX||RAX||ST0||MMX0||XMM0||YMM0||ES||CR0||DR0
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| b0.001 (1)||CL||CX||ECX||RCX||FPR1||MMX1||XMM1||YMM1||CS||CR1||DR1
| b0.001 (1)||CL||CX||ECX||RCX||ST1||MMX1||XMM1||YMM1||CS||CR1||DR1
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| b0.010 (2)||DL||DX||EDX||RDX||FPR2||MMX2||XMM2||YMM2||SS||CR2||DR2
| b0.010 (2)||DL||DX||EDX||RDX||ST2||MMX2||XMM2||YMM2||SS||CR2||DR2
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| b0.011 (3)||BL||BX||EBX||RBX||FPR3||MMX3||XMM3||YMM3||DS||CR3||DR3
| b0.011 (3)||BL||BX||EBX||RBX||ST3||MMX3||XMM3||YMM3||DS||CR3||DR3
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| b0.100 (4)||AH, SPL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||SP||ESP||RSP||FPR4||MMX4||XMM4||YMM4||FS||CR4||DR4
| b0.100 (4)||AH, SPL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||SP||ESP||RSP||ST4||MMX4||XMM4||YMM4||FS||CR4||DR4
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| b0.101 (5)||CH, BPL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||BP||EBP||RBP||FPR5||MMX5||XMM5||YMM5||GS||CR5||DR5
| b0.101 (5)||CH, BPL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||BP||EBP||RBP||ST5||MMX5||XMM5||YMM5||GS||CR5||DR5
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| b0.110 (6)||DH, SIL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||SI||ESI||RSI||FPR6||MMX6||XMM6||YMM6||-||CR6||DR6
| b0.110 (6)||DH, SIL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||SI||ESI||RSI||ST6||MMX6||XMM6||YMM6||-||CR6||DR6
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| b0.111 (7)||BH, DIL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||DI||EDI||RDI||FPR7||MMX7||XMM7||YMM7||-||CR7||DR7
| b0.111 (7)||BH, DIL<span style="vertical-align: super">[[#Table1Note1|1]]</span>||DI||EDI||RDI||ST7||MMX7||XMM7||YMM7||-||CR7||DR7
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| b1.000 (8)||R8L||R8W||R8D||R8||-||MMX0||XMM8||YMM8||ES||CR8||DR8
| b1.000 (8)||R8L||R8W||R8D||R8||-||MMX0||XMM8||YMM8||ES||CR8||DR8
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