#288
Issues/zyantific/zydis/#288

UDBGRD, UDBGWR Undocumented Instructions

Openghostopened 4y ago

Intel processors only

UDBGRD

0F 0E Hidden operands only Reads from: rAX, rCX Writes to: rDX, rBX

UDBGWR

0F 0F Hidden operands only Reads from: rAX, rCX, (rDX, rBX) / (rDX:rBX) Writes to: rDX, rBX

Implemented through a new decoder mode

Paper: https://raw.githubusercontent.com/chip-red-pill/udbgInstr/main/paper/undocumented_x86_insts_for_uarch_control.pdf

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