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Commit bb64d597 authored by Daniele Cattaneo's avatar Daniele Cattaneo Committed by Federico
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Fix context save/restore on STM32F0. 


Signed-off-by: default avatarTerraneo Federico <fede.tft@miosix.org>
parent 85860a57
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2 merge requests!40Update to Miosix 2.7,!17Draft: Improved miosix build system and fixed cmake scripts
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miosix/arch/cortexM0_stm32f0/common/interfaces-impl/portability_impl.h
+ 7
− 7
View file @ bb64d597
......@@ -80,12 +80,12 @@ const int stackPtrOffsetInCtxsave=0; ///< Allows to locate the stack pointer
"mrs r1, psp \n\t" /*get PROCESS stack pointer*/ \
"ldr r0, =ctxsave \n\t" /*get current context*/ \
"ldr r0, [r0] \n\t" \
"stmia r0, {r1,r4-r7} \n\t" /*save PROCESS sp + r4-r7*/ \
"stmia r0!, {r1,r4-r7} \n\t" /*save PROCESS sp + r4-r7*/ \
"mov r4, r8 \n\t" \
"mov r5, r9 \n\t" \
"mov r6, r10 \n\t" \
"mov r7, r11 \n\t" \
"stmia r0, {r4-r7} \n\t" \
"stmia r0!, {r4-r7} \n\t" \
"dmb \n\t" \
); \
}
......@@ -101,12 +101,12 @@ const int stackPtrOffsetInCtxsave=0; ///< Allows to locate the stack pointer
{ \
asm volatile("ldr r0, =ctxsave \n\t" /*get current context*/ \
"ldr r0, [r0] \n\t" \
"ldmia r0, {r1,r4-r7} \n\t" /*pop r8-r11 saving in r4-r7*/ \
"ldmia r0!, {r1,r4-r7} \n\t" /*pop r8-r11 saving in r4-r7*/ \
"msr psp, r1 \n\t" /*restore PROCESS sp*/ \
"ldmia r0!, {r0-r3} \n\t" \
"mov r9, r0 \n\t" \
"mov r10, r1 \n\t" \
"mov r11, r2 \n\t" \
"ldmia r0, {r0-r3} \n\t" \
"mov r8, r0 \n\t" \
"mov r9, r1 \n\t" \
"mov r10, r2 \n\t" \
"mov r11, r3 \n\t" \
"pop {pc} \n\t" /*return*/ \
); \
......
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