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Use %XS to facilitate the checking, even if for the AVX512_4VNNIW ones this is kind of an abuse (as 's' there stands for "signed", not "single"). While there also correct the 3rd operand for the AVX512_4VNNIW entries: Only the memory form is allowed (just like for AVX512_4FMAPS, where the correct type is already in use). --- This goes on top of "x86: fold AVX512-VNNI disassembler entries with AVX-VNNI ones", submitted earlier today. --- a/opcodes/i386-dis-evex-prefix.h +++ b/opcodes/i386-dis-evex-prefix.h @@ -234,14 +234,14 @@ { Bad_Opcode }, { "vdpbf16p%XS", { XM, Vex, EXx }, 0 }, { VEX_W_TABLE (VEX_W_0F3852) }, - { "vp4dpwssd", { XM, Vex, EXxmm }, 0 }, + { "vp4dpws%XSd", { XM, Vex, Mxmm }, 0 }, }, /* PREFIX_EVEX_0F3853 */ { { Bad_Opcode }, { Bad_Opcode }, { VEX_W_TABLE (VEX_W_0F3853) }, - { "vp4dpwssds", { XM, Vex, EXxmm }, 0 }, + { "vp4dpws%XSds", { XM, Vex, Mxmm }, 0 }, }, /* PREFIX_EVEX_0F3868 */ { @@ -262,28 +262,28 @@ { Bad_Opcode }, { Bad_Opcode }, { "vfmsub132p%XW", { XM, Vex, EXx, EXxEVexR }, 0 }, - { "v4fmaddps", { XM, Vex, Mxmm }, 0 }, + { "v4fmaddp%XS", { XM, Vex, Mxmm }, 0 }, }, /* PREFIX_EVEX_0F389B */ { { Bad_Opcode }, { Bad_Opcode }, { "vfmsub132s%XW", { XMScalar, VexScalar, EXdq, EXxEVexR }, 0 }, - { "v4fmaddss", { XMScalar, VexScalar, Mxmm }, 0 }, + { "v4fmadds%XS", { XMScalar, VexScalar, Mxmm }, 0 }, }, /* PREFIX_EVEX_0F38AA */ { { Bad_Opcode }, { Bad_Opcode }, { "vfmsub213p%XW", { XM, Vex, EXx, EXxEVexR }, 0 }, - { "v4fnmaddps", { XM, Vex, Mxmm }, 0 }, + { "v4fnmaddp%XS", { XM, Vex, Mxmm }, 0 }, }, /* PREFIX_EVEX_0F38AB */ { { Bad_Opcode }, { Bad_Opcode }, { "vfmsub213s%XW", { XMScalar, VexScalar, EXdq, EXxEVexR }, 0 }, - { "v4fnmaddss", { XMScalar, VexScalar, Mxmm }, 0 }, + { "v4fnmadds%XS", { XMScalar, VexScalar, Mxmm }, 0 }, }, /* PREFIX_EVEX_0F3A08 */ {