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firmware: Treat timestamps consistently as signed [nfc]

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This matches other functions and the ARTIQ Python side, but
isn't actually an ABI change.
This commit is contained in:
David Nadlinger 2018-12-12 00:37:48 +00:00
parent 38ce7ab8ff
commit 8e30c4574b
1 changed files with 4 additions and 4 deletions
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8
artiq/firmware/ksupport/rtio.rs
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@ -94,7 +94,7 @@ mod imp {
}
}
pub extern fn input_timestamp(timeout: i64, channel: i32) -> u64 {
pub extern fn input_timestamp(timeout: i64, channel: i32) -> i64 {
unsafe {
csr::rtio::target_write((channel as u32) << 8);
csr::rtio::i_timeout_write(timeout as u64);
@ -111,7 +111,7 @@ mod imp {
channel as i64, 0, 0);
}
if status & RTIO_I_STATUS_WAIT_EVENT != 0 {
return !0
return -1
}
if status & RTIO_I_STATUS_DESTINATION_UNREACHABLE != 0 {
raise!("RTIODestinationUnreachable",
@ -119,7 +119,7 @@ mod imp {
channel as i64, 0, 0);
}
csr::rtio::i_timestamp_read()
csr::rtio::i_timestamp_read() as i64
}
}
@ -200,7 +200,7 @@ mod imp {
unimplemented!("not(has_rtio)")
}
pub extern fn input_timestamp(_timeout: i64, _channel: i32) -> u64 {
pub extern fn input_timestamp(_timeout: i64, _channel: i32) -> i64 {
unimplemented!("not(has_rtio)")
}