r500/regs/bits/vap_pvs_code_cntl_0.txt

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Field Name Bits Default Description
PVS_FIRST_INST 9:0 0x0 First Instruction to Execute in PVS.
PVS_XYZW_VALID_INST 19:10 0x0 The PVS Instruction which updates the clip coordinate
position for the last time. This value is used to lower the
processing priority while trivial clip and back-face
culling decisions are made. This field must be set to valid
instruction.
PVS_LAST_INST 29:20 0x0 Last Instruction (Inclusive) for the PVS to execute.