Hi, some people do prefer homemade functions or macros, maybe only for confusing others, but i do prefer the standard way, iso646, which is part of C99 and gcc/mspgcc:
#ifndef _ISO646_H #define _ISO646_H #ifndef __cplusplus #define and && #define and_eq &= #define bitand & #define bitor | #define compl ~ #define not ! #define not_eq != #define or || #define or_eq |= #define xor ^ #define xor_eq ^= #endif #endif So if you want to set BIT3 and BIT5 you only have to write P0OUT or_eq BIT3 bitor BIT5; and if you want to clear BIT2 and BIT6 you write P0OUT and_eq compl BIT2 bitand compl BIT6; or P0OUT and_eq compl (BIT2 bitor BIT6); That's much easier to read and understand and therefore a good way to reduce the number of errors; e. g. mix up and and bitand. The bits BIT0, BIT1 ... are common bits, defined in common.h; the is no need to make homemade other defines if you do not want to confuse others. Regards, Rolf mspgcc-users@lists.sourceforge.net schrieb am 11.02.06 02:23:43: > > Hi everyone, > > Cann't find anything in the docs or header files on bit bashing except mask > defs for each pin. > > P0OUT |= P0OUT_0 and P0OUT &= ~P0OUT_0 certainly work but seem very verbose > for bit bashing a single pin. > > Is there a clearer way? I'd like to be able to write something like P0OUT.0 = > 1;. > > Keep the good work up, > > John Pote
