forked from M-Labs/zynq-rs
51 lines
841 B
Rust
51 lines
841 B
Rust
/// The classic no-op
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#[inline]
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pub fn nop() {
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unsafe { llvm_asm!("nop" :::: "volatile") }
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}
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/// Wait For Event
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#[inline]
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pub fn wfe() {
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unsafe { llvm_asm!("wfe" :::: "volatile") }
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}
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/// Send Event
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#[inline]
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pub fn sev() {
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unsafe { llvm_asm!("sev" :::: "volatile") }
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}
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/// Data Memory Barrier
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#[inline]
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pub fn dmb() {
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unsafe { llvm_asm!("dmb" :::: "volatile") }
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}
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/// Data Synchronization Barrier
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#[inline]
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pub fn dsb() {
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unsafe { llvm_asm!("dsb" :::: "volatile") }
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}
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/// Instruction Synchronization Barrier
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#[inline]
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pub fn isb() {
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unsafe { llvm_asm!("isb" :::: "volatile") }
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}
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/// Enable IRQ
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#[inline]
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pub unsafe fn enable_irq() {
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llvm_asm!("cpsie i":::: "volatile");
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}
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/// Exiting IRQ
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#[inline]
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pub unsafe fn exit_irq() {
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llvm_asm!("
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mrs r0, SPSR
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msr CPSR, r0
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" ::: "r0");
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}
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