- We do not need a red zone here, as we do not operate on the current
stack, but always use the clear exception stack. Also reserve two
extra words for the context to store EPCR and ESR.
* or1k/crt0.S: Fix exception stack frame
* or1k/exception-asm.S: ditto
- During interrupt handling the PICSR, table pointers and current
interrupt line have been saved in incorrect registers and/or stored on
the stack.
- Save the pointer in r16/r18, PICSR in r20 and the current interrupt
line in r22. Those are callee-saved registers, so that the register
values will be preserved.
* or1k/interruts-asm.S: Change registers to callee-saved.
* or1k/Makefile.in: Build and install board libraries
* or1k/board.h: New file
* or1k/boards/README: New file
* or1k/boards/atlys.S: New file
* or1k/boards/de0_nano.S: New file
* or1k/boards/ml501.S: New file
* or1k/boards/ml509.S: New file
* or1k/boards/optimsoc.S: New file
* or1k/boards/or1ksim-uart.S: New file
* or1k/boards/or1ksim.S: New file
* or1k/boards/ordb1a3pe1500.S: New file
* or1k/boards/ordb2a.S: New file
* or1k/boards/orpsocrefdesign.S: New file
* or1k/boards/tmpl.S: New file
* or1k/boards/tmpl.c: New file
* or1k/Makefile.in: Add libor1k
* or1k/README: New file
* or1k/caches-asm.S: New file
* or1k/exceptions-asm.S: New file
* or1k/exceptions.c: New file
* or1k/impure.c: New file
* or1k/include/or1k-nop.h: New file
* or1k/include/or1k-support.h: New file
* or1k/interrupts-asm.S: New file
* or1k/interrupts.c: New file
* or1k/mmu-asm.S: New file
* or1k/or1k-internals.h: New file
* or1k/or1k_uart.c: New file
* or1k/or1k_uart.h: New file
* or1k/outbyte.S: New file
* or1k/sbrk.c: New file
* or1k/sync-asm.S: New file
* or1k/syscalls.c: New file
* or1k/timer.c: New file
* or1k/util.c: New file