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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/sparc/lib/multi3.S | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/sparc/lib/multi3.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S new file mode 100644 index 000000000..2f187b299 --- /dev/null +++ b/arch/sparc/lib/multi3.S @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <linux/linkage.h> +#include <asm/export.h> + + .text + .align 4 +ENTRY(__multi3) /* %o0 = u, %o1 = v */ + mov %o1, %g1 + srl %o3, 0, %o4 + mulx %o4, %g1, %o1 + srlx %g1, 0x20, %g3 + mulx %g3, %o4, %g7 + sllx %g7, 0x20, %o5 + srl %g1, 0, %o4 + sub %o1, %o5, %o5 + srlx %o5, 0x20, %o5 + addcc %g7, %o5, %g7 + srlx %o3, 0x20, %o5 + mulx %o4, %o5, %o4 + mulx %g3, %o5, %o5 + sethi %hi(0x80000000), %g3 + addcc %g7, %o4, %g7 + srlx %g7, 0x20, %g7 + add %g3, %g3, %g3 + movcc %xcc, %g0, %g3 + addcc %o5, %g7, %o5 + sllx %o4, 0x20, %o4 + add %o1, %o4, %o1 + add %o5, %g3, %g2 + mulx %g1, %o2, %g1 + add %g1, %g2, %g1 + mulx %o0, %o3, %o0 + retl + add %g1, %o0, %o0 +ENDPROC(__multi3) +EXPORT_SYMBOL(__multi3) |