[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / mullu.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
#\r
# SPDX-License-Identifier: BSD-2-Clause-Patent\r
#\r
#------------------------------------------------------------------------------\r
.text\r
\r
GCC_ASM_EXPORT(__ARM_ll_mullu)\r
GCC_ASM_EXPORT(__aeabi_lmul)\r
#\r
#INT64\r
#EFIAPI\r
#__aeabi_lmul (\r
#  IN INT64   Multiplicand\r
#  IN INT32   Multiplier\r
#  );\r
#\r
ASM_PFX(__ARM_ll_mullu):\r
  mov     r3, #0\r
# Make upper part of INT64 Multiplier 0 and use __aeabi_lmul\r
\r
#\r
#INT64\r
#EFIAPI\r
#__aeabi_lmul (\r
#  IN INT64   Multiplicand\r
#  IN INT64   Multiplier\r
#  );\r
#\r
ASM_PFX(__aeabi_lmul):\r
  stmdb   sp!, {lr}\r
  mov     lr, r0\r
  umull   r0, ip, r2, lr\r
  mla     r1, r2, r1, ip\r
  mla     r1, r3, lr, r1\r
  ldmia   sp!, {pc}\r
Commit	Line	Data
3402aac7	1	#------------------------------------------------------------------------------\r
f0a7a8ce	2	#\r
	3	# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
	4	#\r
4059386c	5	# SPDX-License-Identifier: BSD-2-Clause-Patent\r
f0a7a8ce	6	#\r
	7	#------------------------------------------------------------------------------\r
	8	.text\r
	9	\r
	10	GCC_ASM_EXPORT(__ARM_ll_mullu)\r
	11	GCC_ASM_EXPORT(__aeabi_lmul)\r
	12	#\r
	13	#INT64\r
	14	#EFIAPI\r
	15	#__aeabi_lmul (\r
	16	# IN INT64 Multiplicand\r
	17	# IN INT32 Multiplier\r
	18	# );\r
	19	#\r
	20	ASM_PFX(__ARM_ll_mullu):\r
	21	mov r3, #0\r
	22	# Make upper part of INT64 Multiplier 0 and use __aeabi_lmul\r
	23	\r
	24	#\r
	25	#INT64\r
	26	#EFIAPI\r
	27	#__aeabi_lmul (\r
	28	# IN INT64 Multiplicand\r
	29	# IN INT64 Multiplier\r
	30	# );\r
	31	#\r
	32	ASM_PFX(__aeabi_lmul):\r
	33	stmdb sp!, {lr}\r
	34	mov lr, r0\r
	35	umull r0, ip, r2, lr\r
	36	mla r1, r2, r1, ip\r
	37	mla r1, r3, lr, r1\r
	38	ldmia sp!, {pc}\r