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modernize ARM assembler syntax (#1148)

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modernize ARM assembler syntax

Signed-off-by: Florian La Roche <Florian.LaRoche@gmail.com>
This commit is contained in:
Florian La Roche 2024-09-20 19:19:09 +02:00 • committed by GitHub
parent 61440fc664
commit 9788e7e46a
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GPG key ID: B5690EEEBB952194
5 changed files with 25 additions and 43 deletions
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12
portable/GCC/ARM_CM3/port.c
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@ -228,8 +228,8 @@ static void prvTaskExitError( void )
void vPortSVCHandler( void )
{
__asm volatile (
" ldr r3, pxCurrentTCBConst2 \n" /* Restore the context. */
" ldr r1, [r3] \n" /* Use pxCurrentTCBConst to get the pxCurrentTCB address. */
" ldr r3, =pxCurrentTCB \n" /* Restore the context. */
" ldr r1, [r3] \n" /* Get the pxCurrentTCB address. */
" ldr r0, [r1] \n" /* The first item in pxCurrentTCB is the task top of stack. */
" ldmia r0!, {r4-r11} \n" /* Pop the registers that are not automatically saved on exception entry and the critical nesting count. */
" msr psp, r0 \n" /* Restore the task stack pointer. */
@ -239,8 +239,7 @@ void vPortSVCHandler( void )
" orr r14, #0xd \n"
" bx r14 \n"
" \n"
" .align 4 \n"
"pxCurrentTCBConst2: .word pxCurrentTCB \n"
" .ltorg \n"
);
}
/*-----------------------------------------------------------*/
@ -462,7 +461,7 @@ void xPortPendSVHandler( void )
" mrs r0, psp \n"
" isb \n"
" \n"
" ldr r3, pxCurrentTCBConst \n" /* Get the location of the current TCB. */
" ldr r3, =pxCurrentTCB \n" /* Get the location of the current TCB. */
" ldr r2, [r3] \n"
" \n"
" stmdb r0!, {r4-r11} \n" /* Save the remaining registers. */
@ -483,8 +482,7 @@ void xPortPendSVHandler( void )
" isb \n"
" bx r14 \n"
" \n"
" .align 4 \n"
"pxCurrentTCBConst: .word pxCurrentTCB \n"
" .ltorg \n"
::"i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY )
);
}