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Just "cc" in the clobbered register list for interrupt enable/disable/flash

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operations.  The "memory" barrier will move the the generic interrupt
enable/disable/flash macros.
This commit is contained in:
Eric Norum
2006-02-28 20:50:03 +00:00
parent e25d8c9932
commit f7842ce207
2 changed files with 24 additions and 5 deletions
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cpukit/score/cpu/m68k/ChangeLog
+15
View File
@@ -1,3 +1,18 @@
2006-02-28 Eric Norum <norume@aps.anl.gov>
PR 904/patch
* rtems/score/m68k.h: Just "cc" in the clobbered register list for
interrupt enable/disable/flash operations. The "memory" barrier will
move the the generic interrupt enable/disable/flash macros.
2006-02-24 Eric Norum <norume@aps.anl.gov>
PR 904/patch
* rtems/score/m68k.h: Add "memory" to the clobbered register list for
interrupt enable/disable/flash operations. This is necessary to prevent
the compiler from hoisting/sinking other operations past the interrupt
enable/disable/flash operations.
2006-01-16 Joel Sherrill <joel@OARcorp.com>
* rtems/score/cpu.h: Part of a large patch to improve Doxygen output.
cpukit/score/cpu/m68k/rtems/score/m68k.h
+9 -5
View File
@@ -280,17 +280,19 @@ extern "C" {
asm volatile ( "move.w %%sr,%0\n\t" \
"or.l %0,%1\n\t" \
"move.w %1,%%sr" \
: "=d" (_level), "=d"(_tmpsr) : "1"(_tmpsr) ); \
: "=d" (_level), "=d"(_tmpsr) : "1"(_tmpsr) \
: "cc" ); \
} while( 0 )
#else
#define m68k_disable_interrupts( _level ) \
asm volatile ( "move.w %%sr,%0\n\t" \
"or.w #0x0700,%%sr" \
: "=d" (_level))
: "=d" (_level) \
: : "cc" )
#endif
#define m68k_enable_interrupts( _level ) \
asm volatile ( "move.w %0,%%sr " : : "d" (_level));
asm volatile ( "move.w %0,%%sr " : : "d" (_level) : "cc");
#if ( M68K_COLDFIRE_ARCH == 1 )
#define m68k_flash_interrupts( _level ) \
@@ -298,13 +300,15 @@ extern "C" {
asm volatile ( "move.w %2,%%sr\n\t" \
"or.l %2,%1\n\t" \
"move.w %1,%%sr" \
: "=d"(_tmpsr) : "0"(_tmpsr), "d"(_level) ); \
: "=d"(_tmpsr) : "0"(_tmpsr), "d"(_level) \
: "cc"); \
} while( 0 )
#else
#define m68k_flash_interrupts( _level ) \
asm volatile ( "move.w %0,%%sr\n\t" \
"or.w #0x0700,%%sr" \
: : "d" (_level))
: : "d" (_level) \
: "cc" )
#endif
#define m68k_get_interrupt_level( _level ) \