what does int_rb0 ---int_rb5 means for 12f675

[young]

in 12f675.h there is some interrupt definition, except the int_ext, there are

[Ttelmah]

Look at the interrupt defintions in the processor data sheet. The 675, supports 'interrupt on change', on each pin of the GPIO port, with the pins being selected by the IOCB register (this is unusual, normally there is just a generic select for al the high bits of portB). Each of these definitions, enable this interrupt for a single pin. The top bytes, are the 'mask' to select which pin will interrupt. You can 'or' these together, to give more than one pin enabled at a time. Remember that as with all 'interrupt on change' inputs, your handler must read the port, and if using more than one, you will need to determine which pin was involved.

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