mirror of
https://git.proxmox.com/git/grub2
synced 2025-10-31 03:31:27 +00:00
90 lines
2.1 KiB
ArmAsm
90 lines
2.1 KiB
ArmAsm
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2013 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <grub/symbol.h>
|
|
#include <grub/dl.h>
|
|
|
|
.file "misc.S"
|
|
.text
|
|
.syntax unified
|
|
#if !defined (__thumb2__)
|
|
.arm
|
|
#else
|
|
.thumb
|
|
#endif
|
|
|
|
.align 2
|
|
|
|
FUNCTION(__muldi3)
|
|
FUNCTION(__aeabi_lmul)
|
|
stmfd sp!, {r4, fp}
|
|
add fp, sp, #4
|
|
sub sp, sp, #16
|
|
str r0, [fp, #-12]
|
|
str r1, [fp, #-8]
|
|
str r2, [fp, #-20]
|
|
str r3, [fp, #-16]
|
|
ldr r3, [fp, #-8]
|
|
ldr r2, [fp, #-20]
|
|
mul r2, r3, r2
|
|
ldr r3, [fp, #-16]
|
|
ldr r1, [fp, #-12]
|
|
mul r3, r1, r3
|
|
add r2, r2, r3
|
|
ldr r0, [fp, #-12]
|
|
ldr r1, [fp, #-20]
|
|
umull r3, r4, r0, r1
|
|
add r2, r2, r4
|
|
mov r4, r2
|
|
mov r0, r3
|
|
mov r1, r4
|
|
mov sp, fp
|
|
sub sp, sp, #4
|
|
ldmfd sp!, {r4, fp}
|
|
bx lr
|
|
|
|
.macro division parent
|
|
|
|
stmfd sp!, {lr}
|
|
sub sp, sp, #12
|
|
mov r2, r1
|
|
add r1, sp, #4
|
|
str r1, [sp, #0]
|
|
mov r1, #0
|
|
mov r3, #0
|
|
bl \parent
|
|
ldr r1, [sp, #4]
|
|
add sp, sp, #12
|
|
ldmfd sp!, {lr}
|
|
bx lr
|
|
.endm
|
|
|
|
FUNCTION(__aeabi_uidivmod)
|
|
division grub_divmod64
|
|
|
|
|
|
/*
|
|
* Null divide-by-zero handler
|
|
*/
|
|
FUNCTION(__aeabi_unwind_cpp_pr0)
|
|
FUNCTION(raise)
|
|
mov r0, #0
|
|
bx lr
|
|
|
|
END
|