Richard Ellingworth / Mbed 2 deprecated RobotRic

Version of Robotron arcade game using LPC1768, a Gameduino shield, a serial EEPROM (for high scores), two microswitch joysticks and two buttons plus a box to put it in. 20 levels of mayhem.

Dependencies:   25LCxxx_SPI CommonTypes Gameduino mbed

BCDNumber.h@18:70190f956a24, 2013-06-17 (annotated)

Committer:
RichardE
Date:
Mon Jun 17 15:10:43 2013 +0000
Revision:
18:70190f956a24
Parent:
4:673eb9735d44 
Improved response to button 1 when entering high scores (HighScoreEntry.cpp).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RichardE 4:673eb9735d44 1 /*
RichardE 4:673eb9735d44 2 * SOURCE FILE : BCDNumber.h
RichardE 4:673eb9735d44 3 *
RichardE 4:673eb9735d44 4 * A 4 byte unsigned BCD integer.
RichardE 4:673eb9735d44 5 *
RichardE 4:673eb9735d44 6 */
RichardE 4:673eb9735d44 7
RichardE 4:673eb9735d44 8 #ifndef BCDNumberIncluded
RichardE 4:673eb9735d44 9
RichardE 4:673eb9735d44 10 #define BCDNumberIncluded
RichardE 4:673eb9735d44 11
RichardE 4:673eb9735d44 12 #include "Types.h"
RichardE 4:673eb9735d44 13
RichardE 4:673eb9735d44 14 class BCDNumber {
RichardE 4:673eb9735d44 15
RichardE 4:673eb9735d44 16 public :
RichardE 4:673eb9735d44 17
RichardE 4:673eb9735d44 18 enum {
RichardE 4:673eb9735d44 19 ByteCount = 4, // Number of bytes used to store number.
RichardE 4:673eb9735d44 20 };
RichardE 4:673eb9735d44 21
RichardE 4:673eb9735d44 22 /***********************/
RichardE 4:673eb9735d44 23 /* ADD TWO BCD NUMBERS */
RichardE 4:673eb9735d44 24 /***********************/
RichardE 4:673eb9735d44 25 // Pass first number in A.
RichardE 4:673eb9735d44 26 // Pass second number in B.
RichardE 4:673eb9735d44 27 // Pass pointer to result in result.
RichardE 4:673eb9735d44 28 // Pass carry flag in carry.
RichardE 4:673eb9735d44 29 // Remember numbers are BCD coded so 0x99999999 means 9 million,
RichardE 4:673eb9735d44 30 // 9 hundred and 99 thousand, 9 hundred and 99.
RichardE 4:673eb9735d44 31 // Returns carry flag. If this is set then overflow occurred.
RichardE 4:673eb9735d44 32 static bool Add( UInt32 numA, UInt32 numB, UInt32 *result, bool carry = false );
RichardE 4:673eb9735d44 33
RichardE 4:673eb9735d44 34 };
RichardE 4:673eb9735d44 35
RichardE 4:673eb9735d44 36 #endif
RichardE 4:673eb9735d44 37
RichardE 4:673eb9735d44 38 /* END of BCDNumber.h */
RichardE 4:673eb9735d44 39