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AMD-K6 Datasheet(PDF) 90 Page - Advanced Micro Devices |
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AMD-K6 Datasheet(HTML) 90 Page - Advanced Micro Devices |
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90 / 346 page ![]() 72 Software Environment Chapter 3 AMD-K6® Processor Data Sheet 20695H/0—March 1998 Preliminary Information FUCOMP DDh 11-101-xxx short float FUCOMPP DAh E9h short float FXAM D9h E5h short float FXCH D9h 11-001-xxx short float FXTRACT D9h F4h vector FYL2X D9h F1h short float FYL2XP1 D9h F9h short float FWAIT 9Bh vector Table 12. MMX™ Instructions Instruction Mnemonic Prefix Byte(s) First Byte ModR/M Byte Decode Type RISC86® Opcodes Note EMMS 0Fh 77h vector MOVD mmreg, mreg32 0Fh 6Eh 11-xxx-xxx short store, mload * MOVD mmreg, mem32 0Fh 6Eh mm-xxx-xxx short mload MOVD mreg32, mmreg 0Fh 7Eh 11-xxx-xxx short mstore, load * MOVD mem32, mmreg 0Fh 7Eh mm-xxx-xxx short mstore MOVQ mmreg1, mmreg2 0Fh 6Fh 11-xxx-xxx short meu MOVQ mmreg, mem64 0Fh 6Fh mm-xxx-xxx short mload MOVQ mmreg1, mmreg2 0Fh 7Fh 11-xxx-xxx short meu MOVQ mem64, mmreg 0Fh 7Fh mm-xxx-xxx short mstore PACKSSDW mmreg1, mmreg2 0Fh 6Bh 11-xxx-xxx short meu PACKSSDW mmreg, mem64 0Fh 6Bh mm-xxx-xxx short mload, meu PACKSSWB mmreg1, mmreg2 0Fh 63h 11-xxx-xxx short meu PACKSSWB mmreg, mem64 0Fh 64h mm-xxx-xxx short mload, meu PACKUSWB mmreg1, mmreg2 0Fh 67h 11-xxx-xxx short meu PACKUSWB mmreg, mem64 0Fh 67h mm-xxx-xxx short mload, meu PADDB mmreg1, mmreg2 0Fh FCh 11-xxx-xxx short meu PADDB mmreg, mem64 0Fh FCh mm-xxx-xxx short mload, meu Note: * Bits 2, 1, and 0 of the modR/M byte select the integer register. Table 11. Floating-Point Instructions (continued) Instruction Mnemonic First Byte Second Byte ModR/M Byte Decode Type RISC86® Opcodes Note Note: * The last three bits of the modR/M byte select the stack entry ST(i). |
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