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Cortex-M: add compiler fences to interrupt enable/disable asm #1002

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Merged
Grazfather merged 3 commits into from
Jul 29, 2026
+2 −2
Merged

Cortex-M: add compiler fences to interrupt enable/disable asm #1002

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Initial plan
Copilot Jul 29, 2026
b8a3aa4
fix(cortex-m): add compiler fences to interrupt enable/disable
Copilot Jul 29, 2026
314fb60
fix(cortex-m): use new asm memory clobber syntax
Copilot Jul 29, 2026
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4 changes: 2 additions & 2 deletions core/src/cpus/cortex_m.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -127,11 +127,11 @@ pub const interrupt = struct {
}

pub fn enable_interrupts() void {
asm volatile ("cpsie i");
asm volatile ("cpsie i" ::: "memory");
}

pub fn disable_interrupts() void {
asm volatile ("cpsid i");
asm volatile ("cpsid i" ::: "memory");
}

fn assert_not_exception(comptime int: Interrupt) void {
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