Attempting to decode: f2 f3 64 67 3e 66 2e 36 65 26 f3 0f 2c 0f iclass CVTTSS2SI category CONVERT ISA-extension SSE ISA-set SSE instruction-length 14 operand-width 32 effective-operand-width 32 effective-address-width 32 stack-address-width 64 iform-enum-name CVTTSS2SI_GPR32d_MEMss iform-enum-name-dispatch (zero based) 0 iclass-max-iform-dispatch 4 Nominal opcode position 12 Nominal opcode 0x2c Operands # TYPE DETAILS VIS RW OC2 BITS BYTES NELEM ELEMSZ ELEMTYPE REGCLASS # ==== ======= === == === ==== ===== ===== ====== ======== ======== 0 REG0 REG0=ECX EXPLICIT W D 32 4 1 32 INT GPR 1 MEM0 (see below) EXPLICIT R SS 32 4 1 32 SINGLE INVALID Memory Operands 0 read SEG= GS BASE= EDI/GPR ASZ0=32 MemopBytes = 4 ATTRIBUTES: MXCSR SIMD_SCALAR F3 PREFIX 67 PREFIX MANDATORY 66 PREFIX EXCEPTION TYPE: SSE_TYPE_3 SSE SCALAR Number of legacy prefixes: 11 ISA SET: [SSE] 0 CPUID GROUP NAME: [SSE] 0 CPUID RECORD NAME: [SSE] {Leaf 0x00000001, subleaf 0x00000000, EDX[25:25]} = 1