SDCC PIC Support about hax

[mkoval]

I have successfully installed SDCC and am curious how extensive our changes will be. I would like to avoid using OpenVex since it is under the GPL license and most of our code should not be tied to MCC18.

[codyps]

we'll need to implement some of the mcc18 hardware libraries (to set up spi and usart)
interrupt paragmas probably need changing.

[mkoval]

Updating the interrupt pragmas should be relatively straightforward. Hopefully the SPI and USART initialization is a great deal simpler on the PIC than on the ARM (it should be).

[mkoval]

I nuked auto-depend support for the PIC architecture until we make the switch to SDCC. It was never fully functional and some of our recent changes broke it on HAX system headers.

[codyps]

I've started to run up against the library issue (spi, uasrt, adc, and delay) in my develop branch. Other things appear fine.