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Change asm for Cortex-M0/3/4.

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Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
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NIIBE Yutaka
2021-02-25 12:52:26 +09:00
parent fd8bb46b8b
commit a70b1acbf6
5 changed files with 63 additions and 59 deletions
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8
example-fsm-55/reset.c
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@@ -19,10 +19,10 @@ reset (void)
{
asm volatile ("cpsid i\n\t" /* Mask all interrupts. */
"mov r0, pc\n\t" /* r0 = PC & ~0x0fff */
"mov r1, #0x10\n\t"
"lsl r1, #8\n\t"
"sub r1, r1, #1\n\t"
"bic r0, r0, r1\n\t"
"movs r1, #0x10\n\t"
"lsls r1, #8\n\t"
"subs r1, #1\n\t"
"bics r0, r0, r1\n\t"
"ldr r2, [r0]\n\t"
"msr MSP, r2\n\t" /* Main (exception handler) stack. */
"b entry\n\t"