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;/*
; FreeRTOS V8.0.0 - Copyright (C) 2014 Real Time Engineers Ltd.
;
;
; ***************************************************************************
; * *
; * FreeRTOS tutorial books are available in pdf and paperback. *
; * Complete, revised, and edited pdf reference manuals are also *
; * available. *
; * *
; * Purchasing FreeRTOS documentation will not only help you, by *
; * ensuring you get running as quickly as possible and with an *
; * in-depth knowledge of how to use FreeRTOS, it will also help *
; * the FreeRTOS project to continue with its mission of providing *
; * professional grade, cross platform, de facto standard solutions *
; * for microcontrollers - completely free of charge! *
; * *
; * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
; * *
; * Thank you for using FreeRTOS, and thank you for your support! *
; * *
; ***************************************************************************
;
;
; This file is part of the FreeRTOS distribution.
;
; FreeRTOS is free software; you can redistribute it and/or modify it under
; the terms of the GNU General Public License (version 2) as published by the
; Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
; >>>NOTE<<< The modification to the GPL is included to allow you to
; distribute a combined work that includes FreeRTOS without being obliged to
; provide the source code for proprietary components outside of the FreeRTOS
; kernel. FreeRTOS is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
; more details. You should have received a copy of the GNU General Public
; License and the FreeRTOS license exception along with FreeRTOS; if not it
; can be viewed here: http://www.freertos.org/a00114.html and also obtained
; by writing to Richard Barry, contact details for whom are available on the
; FreeRTOS WEB site.
;
; 1 tab == 4 spaces!
;
; http://www.FreeRTOS.org - Documentation, latest information, license and
; contact details.
;
; http://www.SafeRTOS.com - A version that is certified for use in safety
; critical systems.
;
; http://www.OpenRTOS.com - Commercial support, development, porting,
; licensing and training services.
;*/
;
; This file defines the RegTest tasks as described at the top of main.c
;
;------------------------------------------------------------------------------
; Functions implemented in this file
;------------------------------------------------------------------------------
PUBLIC vRegTest1Task
PUBLIC vRegTest2Task
; Functions and variables used by this file
;------------------------------------------------------------------------------
EXTERN vRegTestError
EXTERN usRegTest1LoopCounter
EXTERN usRegTest2LoopCounter
;------------------------------------------------------------------------------
; Fill all the registers with known values, then check that the registers
; contain the expected value. An incorrect value being indicative of an
; error in the context switch mechanism.
;
; Input: NONE
;
; Call: Created as a task.
;
; Output: NONE
;
;------------------------------------------------------------------------------
RSEG CODE:CODE
vRegTest1Task:
; First fill the registers.
MOVW AX, #0x1122
MOVW BC, #0x3344
MOVW DE, #0x5566
MOVW HL, #0x7788
MOV CS, #0x01
#if __DATA_MODEL__ == __DATA_MODEL_FAR__
; ES is not saved or restored when using the near memory model so only
; test it when using the far model.
MOV ES, #0x02
#endif
loop1:
; Continuously check that the register values remain at their expected
; values. The BRK is to test the yield. This task runs at low priority
; so will also regularly get preempted.
BRK
; Compare with the expected value.
CMPW AX, #0x1122
SKZ
; Jump over the branch to vRegTestError() if the register contained the
; expected value - otherwise flag an error by executing vRegTestError().
BR vRegTestError
; Repeat for all the registers.
MOVW AX, BC
CMPW AX, #0x3344
SKZ
BR vRegTestError
MOVW AX, DE
CMPW AX, #0x5566
SKZ
BR vRegTestError
MOVW AX, HL
CMPW AX, #0x7788
SKZ
BR vRegTestError
MOV A, CS
CMP A, #0x01
SKZ
BR vRegTestError
#if __DATA_MODEL__ == __DATA_MODEL_FAR__
; ES is not saved or restored when using the near memory model so only
; test it when using the far model.
MOV A, ES
CMP A, #0x02
SKZ
BR vRegTestError
#endif
; Indicate that this task is still cycling.
INCW usRegTest1LoopCounter
MOVW AX, #0x1122
BR loop1
;------------------------------------------------------------------------------
; Fill all the registers with known values, then check that the registers
; contain the expected value. An incorrect value being indicative of an
; error in the context switch mechanism.
;
; Input: NONE
;
; Call: Created as a task.
;
; Output: NONE
;
;------------------------------------------------------------------------------
RSEG CODE:CODE
vRegTest2Task:
MOVW AX, #0x99aa
MOVW BC, #0xbbcc
MOVW DE, #0xddee
MOVW HL, #0xff12
MOV CS, #0x03
#if __DATA_MODEL__ == __DATA_MODEL_FAR__
MOV ES, #0x04
#endif
loop2:
CMPW AX, #0x99aa
SKZ
BR vRegTestError
MOVW AX, BC
CMPW AX, #0xbbcc
SKZ
BR vRegTestError
MOVW AX, DE
CMPW AX, #0xddee
SKZ
BR vRegTestError
MOVW AX, HL
CMPW AX, #0xff12
SKZ
BR vRegTestError
MOV A, CS
CMP A, #0x03
SKZ
BR vRegTestError
#if __DATA_MODEL__ == __DATA_MODEL_FAR__
MOV A, ES
CMP A, #0x04
SKZ
BR vRegTestError
#endif
; Indicate that this task is still cycling.
INCW usRegTest2LoopCounter
MOVW AX, #0x99aa
BR loop2
END
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