Update documentation

BUILD_LINUX.md

@@ -37,9 +37,9 @@ system library.
 Any missing library will be pointed out; use your distributon's software
 manager to install them (except libRocket, see notes below).
 
-If you are going to compile using your own version of SDL2, you should compile 
-SDL2 with xinerama and xrandr, otherwise you could experience many problems 
-switching to fullscreen, at least on NVIDIA cards with closed drivers.
+If you are going to compile using your own version of SDL2, you may want to
+compile SDL2 with xinerama and xrandr support, otherwise you could experience
+problems switching to fullscreen.
 
 ### libRocket
 

BUILD_WINDOWS.md

@@ -13,7 +13,8 @@ in the MSYS shell by pressing the middle mouse button, using Shift+Ins, or
 clicking the right mouse button and choosing 'paste'.
 
 **NOTE:** Current (post march 2019) versions of MSYS2 will produce a binary with
-unstable timings. See GitHub's issue #47.
+unstable timings when the thread_sync program option is enabled. See GitHub's
+issue #47.
 
 ## STEP 1. Setup a 64bit MinGW build environment
 We will use mingw-w64 (mingw-w64.org) under **MSYS2** (www.msys2.org)
@@ -78,7 +79,7 @@ folder of your choosing (see [below](#installation) for more info).
 
 ### Installation
 In order to use the program you'll need to "install" it. The install process is
-not a Windows program installation. Itcd s purpose is to organize executables and
+not a Windows program installation. Its purpose is to organize executables and
 assets inside a folder from which the program can run. 
 
 This is the needed directory structure:

README.md

@@ -214,7 +214,7 @@ Missed frames will not be shown.
 * CTRL+F6: start/stop audio capture
 * CTRL+F7: save current state
 * CTRL+F8: load last state
-* CTRL+F10: mouse grab (only if CTRL+F10 is the mouse grab method)
+* CTRL+F10: mouse grab (only if CTRL+F10 is the mouse grab method, see ini file)
 * CTRL+F11: CPU emulation speed down
 * CTRL+F12: CPU emulation speed up
 * CTRL+DEL: send CTRL+ALT+DEL to the guest OS
@@ -226,6 +226,9 @@ Missed frames will not be shown.
 If the grab method is 'MOUSE3', use the central mouse button to lock the
 mouse.
 
+CTRL+F11 and CTRL+F12 change the speed at which the CPU emulation is performed,
+not its frequency. This is equivalent to warping time.
+
 ### Command line options
 
 -c PATH  Sets a configuration file to use