[mirror_edk2.git] / ArmPkg / Library / SemihostLib / Arm / GccSemihost.S

#------------------------------------------------------------------------------ 
#
# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------

.text
.align 2

.globl ASM_PFX(GccSemihostCall)
INTERWORK_FUNC(GccSemihostCall)

/*
  Semihosting operation request mechanism
  
  SVC  0x123456  in ARM state (for all architectures)
  SVC  0xAB in Thumb state (excluding ARMv7-M)
  BKPT 0xAB for ARMv7-M (Thumb-2 only)
  
  R0 - operation type 
  R1 - block containing all other parametes 
 */
ASM_PFX(GccSemihostCall):
  svc     #0x123456  
  bx      lr
Commit	Line	Data
d9629029	1	#------------------------------------------------------------------------------
	2	#
	3	# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
	4	#
	5	# This program and the accompanying materials
	6	# are licensed and made available under the terms and conditions of the BSD License
	7	# which accompanies this distribution. The full text of the license may be found at
	8	# http://opensource.org/licenses/bsd-license.php
	9	#
	10	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
	11	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
	12	#
	13	#------------------------------------------------------------------------------
	14
	15	.text
	16	.align 2
	17
	18	.globl ASM_PFX(GccSemihostCall)
	19	INTERWORK_FUNC(GccSemihostCall)
	20
	21	/*
	22	Semihosting operation request mechanism
	23
	24	SVC 0x123456 in ARM state (for all architectures)
	25	SVC 0xAB in Thumb state (excluding ARMv7-M)
	26	BKPT 0xAB for ARMv7-M (Thumb-2 only)
	27
	28	R0 - operation type
	29	R1 - block containing all other parametes
	30	*/
	31	ASM_PFX(GccSemihostCall):
	32	svc #0x123456
	33	bx lr
	34
	35