MVDSTD:OverrideOutputBuffers
RequestEdit
| 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. |
ResponseEdit
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Resultcode |
DescriptionEdit
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).