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1d791530d0
ARMv7-A architectures that do not support the Virtualization extensions do not support instructions for the 32bit division. This change provides a software implementation for 32bit division. The division implementation is dumped from the OP-TEE project http://github.com/OP-TEE/optee_os. The code was slightly modified to pass trusted firmware checkpatch requirements and copyright is given to the ARM trusted firmware initiative and its contributors. Change-Id: Idae0c7b80a0d75eac9bd41ae121921d4c5af3fa3 Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
30 lines
658 B
ArmAsm
30 lines
658 B
ArmAsm
/*
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* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <asm_macros.S>
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/*
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* EABI wrappers from the udivmod and idivmod functions
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*/
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.globl ret_uidivmod_values
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.globl ret_idivmod_values
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/*
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* signed ret_idivmod_values(signed quot, signed rem);
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* return quotient and remaining the EABI way (regs r0,r1)
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*/
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func ret_idivmod_values
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bx lr
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endfunc ret_idivmod_values
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/*
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* unsigned ret_uidivmod_values(unsigned quot, unsigned rem);
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* return quotient and remaining the EABI way (regs r0,r1)
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*/
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func ret_uidivmod_values
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bx lr
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endfunc ret_uidivmod_values
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