optimizations, fixes, hacks, psp, ...

[libpicofe.git] / base_readme.txt

diff --git a/base_readme.txt b/base_readme.txt
index 5656e20..7f284bd 100644 (file)
--- a/base_readme.txt
+++ b/base_readme.txt
@@ -38,13 +38,14 @@ If you have any problems (game does not boot, sound is glitchy, broken graphics)
 make sure you enable "Accurate timing", "Emulate Z80" and use "16bit accurate\r
 renderer". This way you will get the best compatibility this emulator can\r
 provide.\r
+For possible Sega/Mega CD problems, see "Other important stuff" section below.\r
 \r
 \r
 How to run Sega/Mega CD games\r
 -----------------------------\r
 \r
 To play any game, you need BIOS files. These files must be copied to the same\r
-directory as PicoDrive. Files can be named as follows:\r
+directory as mentioned PicoDrive files. Files can be named as follows:\r
 \r
 US: us_scd1_9210.bin us_scd2_9306.bin SegaCDBIOS9303.bin\r
 EU: eu_mcd1_9210.bin eu_mcd2_9303.bin eu_mcd2_9306.bin\r
@@ -132,11 +133,10 @@ graphics problems for some games, so it's best to use 16bit one.
 #endif\r
 \r
 #ifdef GIZ\r
-@@0. "Interlaced rendering"\r
+@@0. "Scanline mode"\r
 This option was designed to work around slow framebuffer access (the Gizmondo's\r
-main bottleneck) by drawing every other line (odd numbered lines during odd\r
-numbered frames and even numbered lines during even frames). This improves\r
-performance greatly, but introduces artifacts for fast scrolling games.\r
+main bottleneck) by drawing every other line (even nummbered lines only).\r
+This improves performance greatly, but looses detail.\r
 \r
 #endif\r
 #ifdef GP2X\r
@@ -272,10 +272,14 @@ 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.\r
 \r
 #ifdef GIZ\r
+@@1. "Double buffering"\r
+Draws the display to offscreen buffer, and flips it with visible one when done.\r
+Unfortunately this causes serious tearing, unless v-sync is used (next option).\r
+\r
 @@1. "Wait for V-sync"\r
-Waits for vertical sync before drawing. This option doesn't eliminate tearing\r
-problems, because full framebuffer update takes much more time then the blanking\r
-period lasts on Gizmondo..\r
+Waits for vertical sync before drawing (or flipping buffers, if previous option\r
+is enabled). Emulation is stopped while waiting, so this causes large performance\r
+hit.\r
 \r
 #endif\r
 @@1. "gzip savestates"\r
@@ -348,7 +352,12 @@ Key configuration
 \r
 Select "Configure controls" from the main menu. Then select "Player 1" and you will\r
 see two columns. The left column lists names of Genesis/MD controller buttons, and\r
+#ifdef GP2X\r
 the right GP2X ones, which are assigned to them. If you bind 2 different GP2X buttons\r
+#endif\r
+#ifdef GIZ\r
+the right Giz ones, which are assigned to them. If you bind 2 different Giz buttons\r
+#endif\r
 to the same action, you will get a combo (which means that you will have to press\r
 both buttons for that action to happen.\r
 \r