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        • 5.50 Uncategorized "Instructions"
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        • 5.1 General-Purpose Instructions
        • 5.10 Intel(R) SSE4.1 Instructions
        • 5.13 Intel(R) Advanced Vector Extensions (Intel(R) AVX)
        • 5.7 Intel(R) SSE3 Instructions
        • 5.8 Supplemental Streaming Simd Extensions 3 (SSSE3) Instructions
        • 5.4 MMX Instructions
          • 5.4.3 MMX Packed Arithmetic Instructions
          • 5.4.6 MMX Shift and Rotate Instructions
          • 5.4.2 MMX Conversion Instructions
          • 5.4.4 MMX Comparison Instructions
          • 5.4.1 MMX Data Transfer Instructions
          • 5.4.5 MMX Logical Instructions
          • 5.4.7 MMX State Management Instructions
        • 5.22 Virtual-Machine Extensions
        • 5.6 Intel(R) SSE2 Instructions
        • 5.21 64-Bit Mode Instructions
        • 5.2 X87 FPU Instructions
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        • 5.17 Intel(R) Transactional Synchronization Extensions (Intel(R) Tsx)
        • 5.14 16-Bit Floating-Point Conversion
        • 5.18 Intel(R) SHA Extensions
        • 5.11 Intel(R) SSE4.2 Instruction Set
        • 5.3 X87 FPU and SIMD State Management Instructions
        • 5.40 Other ISA Extensions
        • 5.25 Intel(R) Software Guard Extensions
        • 5.27 Control Transfer Terminating Instructions
        • 5.23 Safer Mode Extensions
        • 5.30 Enqueue Store Instructions
        • 5.29 User Interrupt Instructions
        • 5.28 Intel(R) AMX Instructions
        • 5.26 Shadow Stack Management Instructions
        • 5.31 Intel(R) Advanced Vector Extensions 10 Version 1 Instructions
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• 5.4 MMX Instructions

5.4.3 MMX Packed Arithmetic Instructions

MMX versions are all unimplemented. A few have SSE versions implemented.

Unimplemented Instructions

Opcode	Mnemonic	Other Information	Semantic Function
NP 0F D5	PMULLW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F D8	PSUBUSB	:PFX :NO-PREFIX :FEAT :MMX
NP 0F D9	PSUBUSW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F DC	PADDUSB	:PFX :NO-PREFIX :FEAT :MMX
NP 0F DD	PADDUSW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F E5	PMULHW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F E8	PSUBSB	:PFX :NO-PREFIX :FEAT :MMX
NP 0F E9	PSUBSW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F EC	PADDSB	:PFX :NO-PREFIX :FEAT :MMX
NP 0F ED	PADDSW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F F5	PMADDWD	:PFX :NO-PREFIX :FEAT :MMX
NP 0F F8	PSUBB	:PFX :NO-PREFIX :FEAT :MMX
NP 0F F9	PSUBW	:PFX :NO-PREFIX :FEAT :MMX
NP 0F FA	PSUBD	:PFX :NO-PREFIX :FEAT :MMX

Implemented Instructions

Opcode	Mnemonic	Other Information	Semantic Function
NP 0F FC	PADDB	:PFX :NO-PREFIX :FEAT :MMX	x86-paddb/paddw/paddd/paddq-mmx
NP 0F FD	PADDW	:PFX :NO-PREFIX :FEAT :MMX	x86-paddb/paddw/paddd/paddq-mmx
NP 0F FE	PADDD	:PFX :NO-PREFIX :FEAT :MMX	x86-paddb/paddw/paddd/paddq-mmx