nx_pm4_asm.nx

nx_pm4_asm.nx -- sovereign AMD PM4 (GCN/CDNA/RDNA) COMMAND-SUBMISSION encoder = the AMD R1 rung of the "S-class exceed for ANY DEVICE" ladder (the AMD analog of NVIDIA's GPFIFO entry). Second vendor backend. PM4 Type-3 packet header (documented AMD PM4 spec, cross-referenced vs tinygrad ops_amd.py which submits `self.pm4.PACKET3(cmd, len(vals)-1)` packets straight to the MEC -- bypassing the MES scheduler firmware = the MOST-sovereign GPU path per deep-research): header = (3<<30) | (count<<16) | (opcode<<8) ; count = number of body DWORDs minus 1 IT opcodes below are the stable AMD PM4 values (GFX9-11), used by tinygrad's AM userspace driver. HONEST SCOPE: spec-faithful per the documented AMD PM4 Type-3 format + tinygrad-cross-referenced; toolchain bit-exact verification (llvm-mc -triple=amdgcn, or ROCm) is the UPGRADE (no AMD assembler on this box yet). Pure funcs, no main. license_tier: ORIGINAL