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https://github.com/ARM-software/arm-trusted-firmware.git
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0e14a7fbeb
These are needed to provide division and modulo operations for the AArch32 target. This code is entirely unmodified. Imported from compiler-rt master branch as of May 4 2017. Change-Id: I001e1809f2afd4bf8d4cc3d2296798809f607144 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
46 lines
1.2 KiB
ArmAsm
46 lines
1.2 KiB
ArmAsm
//===-- aeabi_uldivmod.S - EABI uldivmod implementation -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "../assembly.h"
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// struct { uint64_t quot, uint64_t rem}
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// __aeabi_uldivmod(uint64_t numerator, uint64_t denominator) {
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// uint64_t rem, quot;
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// quot = __udivmoddi4(numerator, denominator, &rem);
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// return {quot, rem};
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// }
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#if defined(__MINGW32__)
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#define __aeabi_uldivmod __rt_udiv64
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#endif
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.syntax unified
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.p2align 2
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DEFINE_COMPILERRT_FUNCTION(__aeabi_uldivmod)
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push {r6, lr}
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sub sp, sp, #16
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add r6, sp, #8
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str r6, [sp]
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#if defined(__MINGW32__)
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movs r6, r0
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movs r0, r2
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movs r2, r6
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movs r6, r1
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movs r1, r3
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movs r3, r6
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#endif
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bl SYMBOL_NAME(__udivmoddi4)
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ldr r2, [sp, #8]
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ldr r3, [sp, #12]
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add sp, sp, #16
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pop {r6, pc}
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END_COMPILERRT_FUNCTION(__aeabi_uldivmod)
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NO_EXEC_STACK_DIRECTIVE
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