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Add a test for the non-word case

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This commit is contained in:
Gwilym Kuiper 2022-06-22 23:38:36 +01:00
parent 6aa30462f9
commit d053aa1707
1 changed files with 81 additions and 0 deletions
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81
agb/src/agbabi/mod.rs
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@ -109,6 +109,8 @@ mod test {
}
mod memcpy {
use core::slice;
use alloc::vec;
use crate::Gba;
@ -179,5 +181,84 @@ mod test {
}
}
}
#[test_case]
fn test_all_of_memcpy4(_gba: &mut Gba) {
let mut input = vec![0u32; 100];
let mut output = vec![0u32; 100];
for size in 0..80 {
for offset_input in 0..10 {
for offset_output in 0..10 {
// initialise the buffers
for (i, value) in input.iter_mut().enumerate() {
*value = i as u32;
output[i] = 0;
}
unsafe {
__aeabi_memcpy4(
output.as_mut_ptr().add(offset_output),
input.as_ptr().add(offset_input),
size * 4,
);
}
for (i, &v) in output.iter().enumerate() {
if i < offset_output {
assert_eq!(v, 0, "underrun, size: {size}, input offset: {offset_input}, output offset: {offset_output}, i: {i}");
} else if i < offset_output + size {
assert_eq!(v, (i - offset_output + offset_input) as u32, "incorrect copy, size: {size}, input offset: {offset_input}, output offset: {offset_output}, i: {i}");
} else {
assert_eq!(v, 0, "overrun, size: {size}, input offset: {offset_input}, output offset: {offset_output}, i: {i}");
}
}
}
}
}
}
#[test_case]
fn test_all_of_memcpy4_non_word_length(_gba: &mut Gba) {
let mut input = vec![0u32; 100];
let mut output = vec![0u32; 100];
for size in 0..40 {
for offset_input in 0..10 {
for offset_output in 0..10 {
// initialise the buffers
for (i, value) in input.iter_mut().enumerate() {
*value = i as u32;
output[i] = 0;
}
unsafe {
__aeabi_memcpy4(
output.as_mut_ptr().add(offset_output),
input.as_ptr().add(offset_input),
size * 4,
);
}
let input_bytes: &[u8] = unsafe {
slice::from_raw_parts(input.as_ptr().cast(), input.len() * 4)
};
let output_bytes: &[u8] = unsafe {
slice::from_raw_parts(output.as_ptr().cast(), output.len() * 4)
};
for i in 0..input_bytes.len() {
if i < offset_output * 4 {
assert_eq!(output_bytes[i], 0, "underrun, size: {size}, input offset: {offset_input}, output offset: {offset_output}, i: {i}");
} else if i < offset_output * 4 + size * 4 {
assert_eq!(output_bytes[i], input_bytes[i - offset_output * 4 + offset_input * 4], "incorrect copy, size: {size}, input offset: {offset_input}, output offset: {offset_output}, i: {i}");
} else {
assert_eq!(output_bytes[i], 0, "overrun, size: {size}, input offset: {offset_input}, output offset: {offset_output}, i: {i}");
}
}
}
}
}
}
}
}