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ardupilot/libraries
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justinbeech 62b104cbfa Found free extra 256 bytes of RAM eliminate _clz use from libgcc 
Believe it or not, changing / 2^31 to >>31 saved 256 bytes in the "d" segment.

The reason is that GCC version prior to 4.3.5 does not have a count_leading_zeros (clz) assembler macro, so it uses a 256 byte lookup table called _clz
The _clz table gets pulled in if you do 64 bit division.
This tiny change is the only place that we do long long division.
Changing to a shift saves 256 bytes of ram.
2012-02-17 09:46:05 +00:00
..
AC_PID made I term return in same pattern as D term 2012-02-16 22:09:22 -08:00
AP_ADC ADC: on channel overflow we should not zero last_ch6_micros 2012-02-16 17:48:36 +11:00
AP_AnalogSource Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_Baro Found free extra 256 bytes of RAM eliminate _clz use from libgcc 2012-02-17 09:46:05 +00:00
AP_Common eedump ap param in perl 2012-02-15 21:31:58 +08:00
AP_Compass Compass: enable compass offsets for HIL compass 2012-02-15 22:33:50 +11:00
AP_DCM DCM: added a SITL_debug() for DCM normalisation errors 2012-02-15 08:50:45 +11:00
AP_EEPROMB Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_GPS GPS: change back to 4Hz for MTK GPS 2012-02-13 22:50:20 +11:00
AP_IMU added indexes to group info structures 2012-02-13 16:22:52 +11:00
AP_InertialSensor Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_Math added comment in polygon code 2011-12-21 23:31:38 +11:00
AP_Mount Added camera and/or antenna mount support. 2011-10-31 22:55:58 +01:00
AP_Navigation Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_OpticalFlow Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_PeriodicProcess Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_PID AP_PID, AP_RC_Channel, FastSerial - small changes to make example sketches compile again 2012-01-28 17:54:20 +09:00
AP_RangeFinder Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_RC Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_RC_Channel AP_PID, AP_RC_Channel, FastSerial - small changes to make example sketches compile again 2012-01-28 17:54:20 +09:00
AP_Relay Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
AP_Var move AP_Var code and example into libraries/AP_Var 2012-02-13 16:22:53 +11:00
APM_PI added indexes to group info structures 2012-02-13 16:22:52 +11:00
APM_RC APM_RC_APM2: Add support for CH_10 and CH_11 2012-02-06 22:11:01 -08:00
APO change constant to float 44330.0 2012-02-15 09:10:14 -08:00
Arduino_Mega_ISR_Registry purple: added ISR_Registry() library 2011-11-25 20:00:16 -08:00
DataFlash Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
Desktop SITL: adjust the SITL compass code to have saner z values 2012-02-15 22:34:16 +11:00
doc Checking these in makes the libraries too bulky. We need to host them somewhere. 2011-01-04 06:22:02 +00:00
FastSerial AP_PID, AP_RC_Channel, FastSerial - small changes to make example sketches compile again 2012-01-28 17:54:20 +09:00
GCS_MAVLink adapt Mavlink_compat.h to AP_Param 2012-02-13 16:22:51 +11:00
GCS_SIMPLE Optional recursion added. 2011-09-30 17:17:51 -04:00
GPS_IMU Arduino 1.0 - GPS_IMU - small fix to make it compile. Does anyone use this lib?! 2012-01-28 17:56:56 +09:00
I2C Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
memcheck memcheck: allow memcheck to build on desktop systems 2011-10-09 22:16:12 +11:00
ModeFilter Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00
PID fixed imax load/save in PID 2012-02-13 16:22:53 +11:00
RC_Channel RC_Channel_aux: fixed a uninitialied variable error, and save a bit of stack space 2012-02-15 08:50:45 +11:00
Trig_LUT Optional recursion added. 2011-09-30 17:17:51 -04:00
Waypoints Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 2012-01-28 12:25:47 +09:00