diff options
Diffstat (limited to 'arch/metag/lib/copy_page.S')
| -rw-r--r-- | arch/metag/lib/copy_page.S | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/metag/lib/copy_page.S b/arch/metag/lib/copy_page.S new file mode 100644 index 00000000000..91f7d461239 --- /dev/null +++ b/arch/metag/lib/copy_page.S @@ -0,0 +1,20 @@ + ! Copyright 2007,2008 Imagination Technologies Ltd. + +#include <asm/page.h> + + .text + .global _copy_page + .type _copy_page,function + !! D1Ar1 - to + !! D0Ar2 - from +_copy_page: + MOV D0FrT,#PAGE_SIZE +$Lcopy_page_loop: + GETL D0Re0,D1Re0,[D0Ar2++] + GETL D0Ar6,D1Ar5,[D0Ar2++] + SETL [D1Ar1++],D0Re0,D1Re0 + SETL [D1Ar1++],D0Ar6,D1Ar5 + SUBS D0FrT,D0FrT,#16 + BNZ $Lcopy_page_loop + MOV PC,D1RtP + .size _copy_page,.-_copy_page |