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readme adjustments

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@229 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz 2007-08-25 18:55:20 +00:00
parent 263b3b7c04
commit 51b55351d2
1 changed files with 30 additions and 17 deletions
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47
gp2x/config.txt
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@ -74,23 +74,28 @@ emulator.
Allows to enable confirmation on savestate saving (to prevent savestate overwrites), Allows to enable confirmation on savestate saving (to prevent savestate overwrites),
on loading (to prevent destroying current game progress), and on both or none. on loading (to prevent destroying current game progress), and on both or none.
14. "GP2X CPU clocks" 14. "Save slot"
This is a slot number to use for savestates. This can also be configured to be
changed with a button (see "key configuration").
15. "GP2X CPU clocks"
Here you can change clocks of both GP2X's CPUs. Larger values increase performance. Here you can change clocks of both GP2X's CPUs. Larger values increase performance.
There is no separate option for the second CPU because both CPUs use the same clock There is no separate option for the second CPU because both CPUs use the same clock
source. Setting this option to 200 will cause PicoDrive NOT to change GP2X's clocks source. Setting this option to 200 will cause PicoDrive NOT to change GP2X's clocks
at all (this is if you use external program to set clock). at all (this is if you use external program to set clock).
15. "[Sega/Mega CD options]" 16. "[Sega/Mega CD options]"
Enters Sega/Mega CD options menu (see below). Enters Sega/Mega CD options menu (see below).
16. "[advanced options]" 17. "[advanced options]"
Enters advanced options menu (see below). Enters advanced options menu (see below).
17. "Save cfg as default" 18. "Save cfg as default"
If you save your config here it will be loaded on next ROM load, but only if there If you save your config here it will be loaded on next ROM load, but only if there
is no game specific config saved (which will be loaded in that case). is no game specific config saved (which will be loaded in that case).
You can press left/right to switch to a different config profile.
18. "Save cfg for current game only" 19. "Save cfg for current game only"
Whenever you load current ROM again these settings will be loaded (squidgehack and Whenever you load current ROM again these settings will be loaded (squidgehack and
RAM settings will not take effect until emulator is restarted). RAM settings will not take effect until emulator is restarted).
@ -104,37 +109,45 @@ Enter [advanced options] in config menu to see these options.
Alters image gamma through GP2X hardware. Larger values make image to look brighter, Alters image gamma through GP2X hardware. Larger values make image to look brighter,
lower - darker (default is 1.0). lower - darker (default is 1.0).
2. "Emulate Z80" 2. "A_SN's gamma curve"
If this is enabled, different gamma adjustment method will be used (suggested by A_SN
from gp32x boards). Basically it makes difference for dark and bright colors.
3. "Perfect vsync"
This one adjusts the LCD refresh rate to better match game's refresh rate and starts
synchronizing rendering with it. Should make scrolling smoother and eliminate tearing.
4. "Emulate Z80"
Enables emulation of Z80 chip, which was mostly used to drive the other sound chips. Enables emulation of Z80 chip, which was mostly used to drive the other sound chips.
Some games do complex sync with it, so you must enable it even if you don't use Some games do complex sync with it, so you must enable it even if you don't use
sound to be able to play them. sound to be able to play them.
3. "Emulate YM2612 (FM)" 5. "Emulate YM2612 (FM)"
This enables emulation of six-channel FM sound synthesizer chip, which was used to This enables emulation of six-channel FM sound synthesizer chip, which was used to
produce sound effects and music. produce sound effects and music.
4. "Emulate SN76496 (PSG)" 6. "Emulate SN76496 (PSG)"
This enables emulation of additional sound chip for additional effects. This enables emulation of additional sound chip for additional effects.
Note: if you change sound settings AFTER loading a ROM, you may need to reset Note: if you change sound settings AFTER loading a ROM, you may need to reset
game to get sound. This is because most games initialize sound chips on game to get sound. This is because most games initialize sound chips on
startup, and this data is lost when sound chips are being enabled/disabled. startup, and this data is lost when sound chips are being enabled/disabled.
5. "gzip savestates" 7. "gzip savestates"
This will always apply gzip compression on your savestates, allowing you to This will always apply gzip compression on your savestates, allowing you to
save some space and load/save time. save some space and load/save time.
6. "Don't save last used ROM" 8. "Don't save last used ROM"
This will disable writing last used ROM to config on exit (what might cause SD This will disable writing last used ROM to config on exit (what might cause SD
card corruption according to DaveC). card corruption according to DaveC).
7. "craigix's RAM timings" 9. "craigix's RAM timings"
This overclocks the GP2X RAM chips, but may cause instability. Recommended if you This overclocks the GP2X RAM chips, but may cause instability. Recommended if you
use the second core for sound. Needs emulator restart to take effect. use the second core for sound. Needs emulator restart to take effect.
See this thread: See this thread:
http://www.gp32x.com/board/index.php?showtopic=32319 http://www.gp32x.com/board/index.php?showtopic=32319
8. "squidgehack" 10. "squidgehack"
Well known way to improve the GP2X performance. You must restart the emulator Well known way to improve the GP2X performance. You must restart the emulator
for the change of this option to take effect. for the change of this option to take effect.
@ -180,9 +193,9 @@ games which don't need it, it will just slow them down.
Key configuration Key configuration
----------------- -----------------
When you select "Configure controls" from the menu, you enter a key configuration Select "Configure controls" from the main menu. Then select "Player 1" and you will
mode, where you use SELECT to change an action, and then press a key you like to see two columns. The left column lists names of Genesis/MD controller buttons, and
bind to that action. You can press the same key again to unbind. Select "DONE" the right GP2X ones, which are assigned to them. If you bind 2 different GP2X buttons
action and press any key to finish. to the same action, you will get a combo (which means that you will have to press
both buttons for that action to happen.