digic8:registers
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digic8:registers [2022/02/20 16:35] – [LV peaking (Highlights / zebra)] kitor | digic8:registers [2022/02/21 23:03] (current) – [LV peaking (Highlights / zebra)] kitor | ||
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Registers used by '' | Registers used by '' | ||
- | ===Note on HDMI registers=== | + | Different addresses and slightly different values than Digic 6/7, but capabilities are very similar. |
- | Directly poking HDMI enable doesn' | + | |
- | + | ||
- | On R180.739 I was able to follow xrefs to that register, and found a function that writes them - on R180.739 source value is stored in `b054`. If you apply the rules but write value to `b054` instead of register - it will get updated and zebras displayed on HDMI. | + | |
__It is possible to have independent zebras configured on LCD and HDMI while running in Clean HDMI mode!__ | __It is possible to have independent zebras configured on LCD and HDMI while running in Clean HDMI mode!__ | ||
+ | |||
+ | ===Note on directly writing the registers=== | ||
+ | Directly writing some registers doesn' | ||
+ | |||
+ | TL;DR is that you need to find (via xrefs / static code analysis) where reg value is stored, and update that memory address instead. | ||
===Enable register=== | ===Enable register=== | ||
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Value written should be masked '' | Value written should be masked '' | ||
+ | |||
+ | This register lies in **Display registers** range and most likely has more meanings. | ||
===Threshold / style register=== | ===Threshold / style register=== | ||
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Value written should be masked '' | Value written should be masked '' | ||
- | ^ Field ^ Range ^ Description ^ | + | ^ Field ^ Range ^ Description ^ |
| visibility | | visibility | ||
| speed | 0-3 | lines/dots are moving slower -> faster | | speed | 0-3 | lines/dots are moving slower -> faster | ||
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| underexpo_th | 0-255 | Threshold on undexexpo register, ignored on overexpo | | underexpo_th | 0-255 | Threshold on undexexpo register, ignored on overexpo | ||
| overexpo_th | | overexpo_th | ||
+ | |||
+ | **Note: On HDMI max threshold is 0xE8** Values above that are not displayed! | ||
===Color register=== | ===Color register=== |
digic8/registers.1645371333.txt.gz · Last modified: 2022/02/20 16:35 by kitor