124 lines
3.0 KiB
ArmAsm
124 lines
3.0 KiB
ArmAsm
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS/RT 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
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <avr/io.h>
|
|
|
|
.global threadstart
|
|
threadstart:
|
|
sei
|
|
movw r24, r4 // argument
|
|
movw r30, r2 // thread function
|
|
icall
|
|
call chThdExit
|
|
|
|
.global chSysSwitchI
|
|
chSysSwitchI:
|
|
push r2
|
|
push r3
|
|
push r4
|
|
push r5
|
|
push r6
|
|
push r7
|
|
push r8
|
|
push r9
|
|
push r10
|
|
push r11
|
|
push r12
|
|
push r13
|
|
push r14
|
|
push r15
|
|
push r16
|
|
push r17
|
|
push r28
|
|
push r29
|
|
movw r30, r24 // Z <- oldp
|
|
in r0, _SFR_IO_ADDR(SPL)
|
|
st Z, r0
|
|
in r0, _SFR_IO_ADDR(SPH)
|
|
std Z+1, r0
|
|
|
|
movw r30, r22 // Z <- newp
|
|
ld r0, Z
|
|
out _SFR_IO_ADDR(SPL), r0
|
|
ldd r0, Z+1
|
|
out _SFR_IO_ADDR(SPH), r0
|
|
pop r29
|
|
pop r28
|
|
pop r17
|
|
pop r16
|
|
pop r15
|
|
pop r14
|
|
pop r13
|
|
pop r12
|
|
pop r11
|
|
pop r10
|
|
pop r9
|
|
pop r8
|
|
pop r7
|
|
pop r6
|
|
pop r5
|
|
pop r4
|
|
pop r3
|
|
pop r2
|
|
ret
|
|
|
|
.global __vector_17
|
|
__vector_17:
|
|
push r0
|
|
push r1
|
|
push r18
|
|
push r19
|
|
push r20
|
|
push r21
|
|
push r22
|
|
push r23
|
|
push r24
|
|
push r25
|
|
push r26
|
|
push r27
|
|
push r30
|
|
push r31
|
|
in r0, _SFR_IO_ADDR(SREG)
|
|
push r0
|
|
clr r1
|
|
call chSchTimerHandlerI
|
|
intcommon:
|
|
call chSchRescRequiredI
|
|
tst r24
|
|
breq noschd
|
|
call chSchDoRescheduleI
|
|
noschd:
|
|
pop r0
|
|
out _SFR_IO_ADDR(SREG), r0
|
|
pop r31
|
|
pop r30
|
|
pop r27
|
|
pop r26
|
|
pop r25
|
|
pop r24
|
|
pop r23
|
|
pop r22
|
|
pop r21
|
|
pop r20
|
|
pop r19
|
|
pop r18
|
|
pop r1
|
|
pop r0
|
|
reti
|