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Rev Age Author Path Log message Diff
4647 5479 d 8 h jermar /branches/arm/ Branch out a new arm branch.  
2001 6439 d 3 h jermar /trunk/kernel/ Indentation and comment fixes.  
1915 6490 d 6 h jermar /trunk/kernel/ A quote from from SPARC V9 specification:

The Y register is deprecated; it is provided only for compatibility with previous versions
of the architecture. It should not be used in new SPARC-V9 software. It is
recommended that all instructions that reference the Y register (i.e., SMUL,
SMULcc, UMUL, UMULcc, MULScc, SDIV, SDIVcc, UDIV, UDIVcc, RDY, and
WRY) be avoided. See the appropriate pages in Appendix A, “Instruction Definitions,”
for suitable substitute instructions.

Still gcc is generating code which uses Y and some of the instructions above.
This change modifies the preemptible_handler() to preserve the Y register
across preemption.
 
1849 6542 d 15 h jermar /trunk/kernel/ sparc64 work.
interrupt_vector trap experimental handling.
Minimal reverse-engineered FireHose Controller driver (documentation needed!).
Keyboard on Sun Enterprise is now interrupt driven. Keyboard on Sun Ultra
is still polled.
 
1787 6579 d 8 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
534 6798 d 7 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel again.  
532 6798 d 7 h jermar / Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.  
501 6810 d 11 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel.  
398 6856 d 15 h jermar /SPARTAN/trunk/ Add arch directory for sparc64.