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Diffstat (limited to 'core/nds32/__muldi3.S')
| -rw-r--r-- | core/nds32/__muldi3.S | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/core/nds32/__muldi3.S b/core/nds32/__muldi3.S deleted file mode 100644 index ef4a491183..0000000000 --- a/core/nds32/__muldi3.S +++ /dev/null @@ -1,40 +0,0 @@ -/* Copyright 2015 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - * - * __muldi3.S: signed 64 bit multiplication - */ - -#define P1H $r1 -#define P1L $r0 -#define P2H $r3 -#define P2L $r2 - - .text - .align 2 - .globl __muldi3 - .type __muldi3, @function -__muldi3: - mul $r5, P1H, P2L ! (ah=a>>31)*(bl=b&0xffffffff) - srli P1H, P1L, 16 ! alh=al>>16 - maddr32 $r5, P1L, P2H ! ah*bl+(bh=b>>31)*(al=a&0xffffffff) - zeh P1L, P1L ! all=al&0xffff - srli P2H, P2L, 16 ! blh=bl>>16 - zeh P2L, P2L ! bll=bl&0xffff - - mul $ta, P1L, P2H ! zA=all*blh - mul $r4, P1L, P2L ! zl=all*bll - mul P2L, P1H, P2L ! zB=alh*bll - add P1L, $ta, P2L ! zA+=zB - slt $ta, P1L, P2L ! zA<zB - slli $ta, $ta, 16 ! (zA<zB)<<16 - slli P2L, P1L, 16 ! zA<<16 - maddr32 $ta, P1H, P2H ! zh=alh*blh+((zA<zB)<<16) - srli P1H, P1L, 16 ! zA>>16 - add P1H, P1H, $ta ! zh+=(zA>>16) - add P1L, $r4, P2L ! zl+=(zA<<16) - slt $ta, P1L, $r4 ! zl<zA - add P1H, P1H, $ta ! zh+=(zl<zA) - add P1H, P1H, $r5 ! zh+=ah*bl+bh*al - ret - .size __muldi3, .-__muldi3 |