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| author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
|---|---|---|
| committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
| commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
| tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/blackfin/lib/umulsi3_highpart.S | |
| parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
| download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip | |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/blackfin/lib/umulsi3_highpart.S')
| -rw-r--r-- | arch/blackfin/lib/umulsi3_highpart.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/blackfin/lib/umulsi3_highpart.S b/arch/blackfin/lib/umulsi3_highpart.S new file mode 100644 index 00000000..051824a6 --- /dev/null +++ b/arch/blackfin/lib/umulsi3_highpart.S @@ -0,0 +1,31 @@ +/* + * Copyright 2007 Analog Devices Inc. + * + * Licensed under the ADI BSD license or the GPL-2 (or later) + */ + +.align 2 +.global ___umulsi3_highpart; +.type ___umulsi3_highpart, STT_FUNC; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + +___umulsi3_highpart: + R2 = R1.H * R0.H, R3 = R1.L * R0.H (FU); + R0 = R1.L * R0.L, R1 = R1.H * R0.L (FU); + R0 >>= 16; + /* Unsigned multiplication has the nice property that we can + ignore carry on this first addition. */ + R0 = R0 + R3; + R0 = R0 + R1; + cc = ac0; + R1 = cc; + R1 = PACK(R1.l,R0.h); + R0 = R1 + R2; + RTS; + +.size ___umulsi3_highpart, .-___umulsi3_highpart |