diff options
| author | Jens Arnold <amiconn@rockbox.org> | 2005-09-01 20:06:38 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2005-09-01 20:06:38 +0000 |
| commit | 904f7fd970aac651474bcc071df53068a866014f (patch) | |
| tree | 6da10b4a2f224ab39b9c245d1853836c0cecf5d3 /firmware/thread.c | |
| parent | 4172a009f626f032962085a981b7fc2accbdc2e4 (diff) | |
Coldfire: Made the MACSR register part of the thread context to allow easier handling in the codecs.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7445 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/thread.c')
| -rw-r--r-- | firmware/thread.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/firmware/thread.c b/firmware/thread.c index a8c5ab752f..5bbea31d53 100644 --- a/firmware/thread.c +++ b/firmware/thread.c @@ -27,6 +27,7 @@ #ifdef CPU_COLDFIRE struct regs { + unsigned int macsr; /* EMAC status register */ unsigned int d[6]; /* d2-d7 */ unsigned int a[5]; /* a2-a6 */ void *sp; /* Stack pointer (a7) */ @@ -77,31 +78,33 @@ static inline void load_context(const void* addr) __attribute__ ((always_inline) static inline void store_context(void* addr) { asm volatile ( - "movem.l %%d2-%%d7/%%a2-%%a7,(%0)\n" - : : "a" (addr) + "move.l %%macsr,%%d0 \n" + "movem.l %%d0/%%d2-%%d7/%%a2-%%a7,(%0) \n" + : : "a" (addr) : "d0" /* only! */ ); } -/*--------------------------------------------------------------------------- +/*--------------------------------------------------------------------------- * Load non-volatile context. *--------------------------------------------------------------------------- */ static inline void load_context(const void* addr) { asm volatile ( - "movem.l (%0),%%d2-%%d7/%%a2-%%a7\n" /* Load context */ - "move.l (48,%0),%%d0 \n" /* Get start address */ - "beq.b .running \n" /* NULL -> already running */ - "clr.l (48,%0) \n" /* Clear start address.. */ - "move.l %%d0,%0 \n" - "jmp (%0) \n" /* ..and start the thread */ - ".running: \n" + "movem.l (%0),%%d0/%%d2-%%d7/%%a2-%%a7 \n" /* Load context */ + "move.l %%d0,%%macsr \n" + "move.l (52,%0),%%d0 \n" /* Get start address */ + "beq.b .running \n" /* NULL -> already running */ + "clr.l (52,%0) \n" /* Clear start address.. */ + "move.l %%d0,%0 \n" + "jmp (%0) \n" /* ..and start the thread */ + ".running: \n" : : "a" (addr) : "d0" /* only! */ ); } #elif CONFIG_CPU == SH7034 -/*--------------------------------------------------------------------------- +/*--------------------------------------------------------------------------- * Store non-volatile context. *--------------------------------------------------------------------------- */ |