88 lines
2.1 KiB
ArmAsm
88 lines
2.1 KiB
ArmAsm
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/symbol.h>
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#include <grub/dl.h>
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.file "misc.S"
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.text
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.syntax unified
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#if !defined (__thumb2__)
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.arm
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#else
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.thumb
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#endif
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.align 2
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FUNCTION(__muldi3)
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FUNCTION(__aeabi_lmul)
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stmfd sp!, {r4, fp}
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add fp, sp, #4
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sub sp, sp, #16
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str r0, [fp, #-12]
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str r1, [fp, #-8]
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str r2, [fp, #-20]
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str r3, [fp, #-16]
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ldr r3, [fp, #-8]
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ldr r2, [fp, #-20]
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.long 0xe0020293 @ mul r2, r3, r2
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ldr r3, [fp, #-16]
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ldr r1, [fp, #-12]
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.long 0xe0030391 @ mul r3, r1, r3
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add r2, r2, r3
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ldr r0, [fp, #-12]
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ldr r1, [fp, #-20]
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umull r3, r4, r0, r1
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add r2, r2, r4
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mov r4, r2
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mov r0, r3
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mov r1, r4
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sub sp, fp, #4
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ldmfd sp!, {r4, fp}
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bx lr
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.macro division parent
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stmfd sp!, {lr}
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sub sp, sp, #12
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mov r2, r1
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add r1, sp, #4
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str r1, [sp, #0]
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mov r1, #0
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mov r3, #0
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bl \parent
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ldr r1, [sp, #4]
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add sp, sp, #12
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ldmfd sp!, {lr}
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bx lr
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.endm
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FUNCTION(__aeabi_uidivmod)
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division grub_divmod64
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/*
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* Null divide-by-zero handler
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*/
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FUNCTION(__aeabi_unwind_cpp_pr0)
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FUNCTION(raise)
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mov r0, #0
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bx lr
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END
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