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Updated nes20db and snes_clk SD card docs

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Kreeblah 2022-08-19 11:43:04 -07:00
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@ -58,6 +58,11 @@ BA58ED29,716956B4,4E45531A100010080000070700000001
Name
CRC32 (prg+chr combined), CRC32 (512 bytes), iNES Header
## nes20db.txt
This file stores NES 2.0 data about NES ROMs, generated from [NewRisingSun's nes20db XML file on NesDev](https://forums.nesdev.org/viewtopic.php?t=19940). Converting updated versions of the XML file to this format requires compiling and running [NES20Tool](https://github.com/Kreeblah/NES20Tool) with the following options at runtime:
NES20Tool -operation transform -xml-file nes20db.xml -xml-format nes20db -format-transform-type sanni -format-transform-destination nes20db.txt
## snes.txt
This file is needed for odd sized SNES games like Final Fantasy (JAP), Super Metroid(US/JAP) or Tales of Symphonia. Without this file you will get overdumps and the checksum calculation will fail.
@ -69,4 +74,4 @@ Name
CRC32, internal checksum, size in Mbit, number of banks (lorom needs twice as many banks as hirom for the same rom size, lorom: 32kb banks, hirom: 64kb banks)
## snes_clk.txt
Calibration data for clock generator.
Calibration data for clock generator. Generated by the cartreader calibration function.