Macros starting with 'c' in i386/isa

• CE_RECORD i386/isa/sio.c:135
• CHAR1 i386/isa/aha1742.c:100
• CHAR2 i386/isa/aha1742.c:101
• CHAR3 i386/isa/aha1742.c:102
• COMBRD i386/isa/comreg.h:39
• cominor i386/isa/com.c:59
• COM_ISMULTIPORT i386/isa/sio.c:84
• COM_MPMASTER i386/isa/sio.c:85
• COUNT_EVENT i386/isa/debug.h:20