diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:16:31 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:16:31 +0200 |
| commit | da957e111bb0c189a4a3bf8a00caaecb59ed94ca (patch) | |
| tree | 6916075fdd3e28869dcd3dfa2cf160a74d1cb02e /arch/i386/math-emu/shr_Xsig.S | |
| parent | 2ec1df4130c60d1eb49dc0fa0ed15858fede6b05 (diff) | |
i386: move math-emu
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/i386/math-emu/shr_Xsig.S')
| -rw-r--r-- | arch/i386/math-emu/shr_Xsig.S | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/arch/i386/math-emu/shr_Xsig.S b/arch/i386/math-emu/shr_Xsig.S deleted file mode 100644 index 31cdd118e918..000000000000 --- a/arch/i386/math-emu/shr_Xsig.S +++ /dev/null @@ -1,87 +0,0 @@ - .file "shr_Xsig.S" -/*---------------------------------------------------------------------------+ - | shr_Xsig.S | - | | - | 12 byte right shift function | - | | - | Copyright (C) 1992,1994,1995 | - | W. Metzenthen, 22 Parker St, Ormond, Vic 3163, | - | Australia. E-mail billm@jacobi.maths.monash.edu.au | - | | - | Call from C as: | - | void shr_Xsig(Xsig *arg, unsigned nr) | - | | - | Extended shift right function. | - | Fastest for small shifts. | - | Shifts the 12 byte quantity pointed to by the first arg (arg) | - | right by the number of bits specified by the second arg (nr). | - | | - +---------------------------------------------------------------------------*/ - -#include "fpu_emu.h" - -.text -ENTRY(shr_Xsig) - push %ebp - movl %esp,%ebp - pushl %esi - movl PARAM2,%ecx - movl PARAM1,%esi - cmpl $32,%ecx /* shrd only works for 0..31 bits */ - jnc L_more_than_31 - -/* less than 32 bits */ - pushl %ebx - movl (%esi),%eax /* lsl */ - movl 4(%esi),%ebx /* midl */ - movl 8(%esi),%edx /* msl */ - shrd %cl,%ebx,%eax - shrd %cl,%edx,%ebx - shr %cl,%edx - movl %eax,(%esi) - movl %ebx,4(%esi) - movl %edx,8(%esi) - popl %ebx - popl %esi - leave - ret - -L_more_than_31: - cmpl $64,%ecx - jnc L_more_than_63 - - subb $32,%cl - movl 4(%esi),%eax /* midl */ - movl 8(%esi),%edx /* msl */ - shrd %cl,%edx,%eax - shr %cl,%edx - movl %eax,(%esi) - movl %edx,4(%esi) - movl $0,8(%esi) - popl %esi - leave - ret - -L_more_than_63: - cmpl $96,%ecx - jnc L_more_than_95 - - subb $64,%cl - movl 8(%esi),%eax /* msl */ - shr %cl,%eax - xorl %edx,%edx - movl %eax,(%esi) - movl %edx,4(%esi) - movl %edx,8(%esi) - popl %esi - leave - ret - -L_more_than_95: - xorl %eax,%eax - movl %eax,(%esi) - movl %eax,4(%esi) - movl %eax,8(%esi) - popl %esi - leave - ret |