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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2002-03-01 16:21:12 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2002-03-01 16:21:12 +0000 |
| commit | bd1ecb00d955204b7c01daffe7e6e7cb8c8a765a (patch) | |
| tree | 0a3497019e1d4840c978d664a05107d00ddc69b5 /cpukit/score/cpu/mips/rtems/mips/idtcpu.h | |
| parent | 2001-03-01 Joel Sherrill <joel@OARcorp.com> (diff) | |
| download | rtems-bd1ecb00d955204b7c01daffe7e6e7cb8c8a765a.tar.bz2 | |
2002-02-27 Greg Menke <gregory.menke@gsfc.nasa.gov>
* cpu_asm.S: Fixed exception return address, modified FP context
switch so FPU is properly enabled and also doesn't screw up the
exception FP handling.
* idtcpu.h: Added C0_TAR, the MIPS target address register used for
returning from exceptions.
* iregdef.h: Added R_TAR to the stack frame so the target address
can be saved on a per-exception basis. The new entry is past the
end of the frame gdb cares about, so doesn't affect gdb or cpu.h
stuff.
* rtems/score/cpu.h: added an #ifdef so cpu_asm.S can include it
to obtain FPU defines without systax errors generated by the C
defintions.
* cpu.c: Improved interrupt level saves & restores.
Diffstat (limited to 'cpukit/score/cpu/mips/rtems/mips/idtcpu.h')
| -rw-r--r-- | cpukit/score/cpu/mips/rtems/mips/idtcpu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/cpukit/score/cpu/mips/rtems/mips/idtcpu.h b/cpukit/score/cpu/mips/rtems/mips/idtcpu.h index 90d09a104d..2f450b21b1 100644 --- a/cpukit/score/cpu/mips/rtems/mips/idtcpu.h +++ b/cpukit/score/cpu/mips/rtems/mips/idtcpu.h @@ -362,6 +362,7 @@ LICENSED MATERIAL - PROGRAM PROPERTY OF IDT * Cause Register */ #define CAUSE_BD 0x80000000 /* Branch delay slot */ +#define CAUSE_BT 0x40000000 /* Branch Taken */ #define CAUSE_CEMASK 0x30000000 /* coprocessor error */ #define CAUSE_CESHIFT 28 @@ -393,6 +394,10 @@ LICENSED MATERIAL - PROGRAM PROPERTY OF IDT #define C0_WIRED $6 /* number of wired tlb entries */ #endif +#if __mips == 1 +#define C0_TAR $6 +#endif + #define C0_BADVADDR $8 /* bad virtual address */ #if __mips == 3 |