diff options
Diffstat (limited to 'target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/muldi3.S')
| -rw-r--r-- | target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/muldi3.S | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/muldi3.S b/target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/muldi3.S new file mode 100644 index 0000000..c4f216e --- /dev/null +++ b/target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/muldi3.S @@ -0,0 +1,67 @@ +/* + * Coldfire muldi3 assembly verion + * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * Jason Jin Jason.Jin@freescale.com + * Shrek Wu B16972@freescale.com + */ + +#include <linux/linkage.h> +.globl __muldi3 + +ENTRY(__muldi3) + linkw %fp,#0 + lea %sp@(-32),%sp + moveml %d2-%d7/%a2-%a3,%sp@ + moveal %fp@(8), %a2 + moveal %fp@(12), %a3 + moveal %fp@(16), %a0 + moveal %fp@(20),%a1 + movel %a3,%d2 + andil #65535,%d2 + movel %a3,%d3 + clrw %d3 + swap %d3 + movel %a1,%d0 + andil #65535,%d0 + movel %a1,%d1 + clrw %d1 + swap %d1 + movel %d2,%d7 + mulsl %d0,%d7 + movel %d2,%d4 + mulsl %d1,%d4 + movel %d3,%d2 + mulsl %d0,%d2 + mulsl %d1,%d3 + movel %d7,%d0 + clrw %d0 + swap %d0 + addl %d0,%d4 + addl %d2,%d4 + cmpl %d4,%d2 + blss 1f + addil #65536,%d3 +1: + movel %d4,%d0 + clrw %d0 + swap %d0 + movel %d3,%d5 + addl %d0,%d5 + movew %d4,%d6 + swap %d6 + movew %d7,%d6 + movel %d5,%d0 + movel %d6,%d1 + movel %a3,%d2 + movel %a0,%d3 + mulsl %d3,%d2 + movel %a2,%d3 + movel %a1,%d4 + mulsl %d4,%d3 + addl %d3,%d2 + movel %d2,%d0 + addl %d5,%d0 + moveml %sp@, %d2-%d7/%a2-%a3 + lea %sp@(32),%sp + unlk %fp + rts |