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| author | Daniel Hellstrom <daniel@gaisler.com> | 2014-12-03 11:35:52 +0100 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2014-12-04 12:51:11 +0100 |
| commit | dff1803cfbec3775fff1b9c34cc707c05494dc3b (patch) | |
| tree | dbb8850d94b30f8388f9e3df9a68fc6c99855f74 /c/src/lib/libcpu/sparc/syscall/syscall.h | |
| parent | pc386 bsp fix for default mode (diff) | |
| download | rtems-dff1803cfbec3775fff1b9c34cc707c05494dc3b.tar.bz2 | |
SPARC: optimize IRQ enable & disable
* Coding style cleanups.
* Use OS reserved trap 0x89 for IRQ Disable
* Use OS reserved trap 0x8A for IRQ Enable
* Add to SPARC CPU supplement documentation
This will result in faster Disable/Enable code since the
system trap handler does not need to decode which function
the user wants. Besides the IRQ disable/enabled can now
be inline which avoids the caller to take into account that
o0-o7+g1-g4 registers are destroyed by trap handler.
It was also possible to reduce the interrupt trap handler by
five instructions due to this.
Diffstat (limited to 'c/src/lib/libcpu/sparc/syscall/syscall.h')
| -rw-r--r-- | c/src/lib/libcpu/sparc/syscall/syscall.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/c/src/lib/libcpu/sparc/syscall/syscall.h b/c/src/lib/libcpu/sparc/syscall/syscall.h index 9af3560267..2f20886840 100644 --- a/c/src/lib/libcpu/sparc/syscall/syscall.h +++ b/c/src/lib/libcpu/sparc/syscall/syscall.h @@ -1,3 +1 @@ #define SYS_exit 1 -#define SYS_irqdis 2 -#define SYS_irqen 3 |