Jeremy Soller
74 lines
1.7 KiB
Rust
74 lines
1.7 KiB
Rust
use super::error::{Error, Result};
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pub unsafe fn syscall0(mut a: usize) -> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a)
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: "memory"
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: "volatile");
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Error::demux(a)
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}
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pub unsafe fn syscall1(mut a: usize, b: usize) -> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a), "{r0}"(b)
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: "memory"
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: "volatile");
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Error::demux(a)
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}
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// Clobbers all registers - special for clone
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pub unsafe fn syscall1_clobber(mut a: usize, b: usize) -> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a), "{r0}"(b)
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: "memory", "r0", "r1", "r2", "r3", "r4"
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: "volatile");
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Error::demux(a)
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}
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pub unsafe fn syscall2(mut a: usize, b: usize, c: usize) -> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a), "{r0}"(b), "{r1}"(c)
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: "memory"
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: "volatile");
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Error::demux(a)
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}
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pub unsafe fn syscall3(mut a: usize, b: usize, c: usize, d: usize) -> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a), "{r0}"(b), "{r1}"(c), "{r2}"(d)
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: "memory"
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: "volatile");
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Error::demux(a)
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}
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pub unsafe fn syscall4(mut a: usize, b: usize, c: usize, d: usize, e: usize) -> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a), "{r0}"(b), "{r1}"(c), "{r2}"(d), "{r3}"(e)
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: "memory"
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: "volatile");
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Error::demux(a)
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}
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pub unsafe fn syscall5(mut a: usize, b: usize, c: usize, d: usize, e: usize, f: usize)
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-> Result<usize> {
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asm!("swi $$0"
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: "={r0}"(a)
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: "{r7}"(a), "{r0}"(b), "{r1}"(c), "{r2}"(d), "{r3}"(e), "{r4}"(f)
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: "memory"
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: "volatile");
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Error::demux(a)
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}
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