MVDSTD:OverrideOutputBuffers
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Request
Index Word | Description |
---|---|
0 | Header code [0x00210100] |
1 | cur_outaddr0, linearmem vaddr. |
2 | cur_outaddr1, linearmem vaddr. |
3 | new_outaddr0, linearmem vaddr. |
4 | new_outaddr1, linearmem vaddr. |
Response
Index Word | Description |
---|---|
0 | Header code |
1 | Resultcode |
Description
This can only be used when MVDSTD:SetupOutputBuffers was previously used.
If a certain state flag is zero, this first writes a 0x10-byte entry into the global table used by MVDSTD:SetupOutputBuffers with entry_index=total_entries, then that flag is set.
This verifies that cur_outaddrX(converted to physaddr) matches the state data for entry0 which originated from MVDSTD:SetupOutputBuffers. Then those two addrs in state are overwritten with new_outaddrX(converted to physaddr).