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* Extract 'struct bregs' out of biosvar.h; clean up header includes.Kevin O'Connor2008-07-041-1/+0
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* Add code (currently disabled) to mask run away irqs.Kevin O'Connor2008-06-211-18/+19
| | | | | | | Add handler that can react to any unknown hardware irq by masking that irq. This can be useful for finding/fixing run away irq issues. Don't currently register these hardware irq handlers Also, sort and improve default debug levels for bios handlers.
* Add header guard around pic.hKevin O'Connor2008-06-181-0/+4
| | | | This fixes compiling with AVOIDCOMBINE=1
* Cleanup handling of interrupt controller (PIC).Kevin O'Connor2008-06-141-0/+77
Add new file (pic.h) with helpers for accessing the PIC. Move irq enabling code to the files that use those interrupts. Also, don't setup for floppy if floppy support not enabled.