38 lines
851 B
Rust
38 lines
851 B
Rust
use std::fmt::Write as _;
|
|
|
|
use crate::errors::VmError;
|
|
|
|
pub(crate) fn bytes_to_hex(bytes: &[u8]) -> String {
|
|
let mut out = String::with_capacity(bytes.len() * 2);
|
|
for byte in bytes {
|
|
let _ = write!(out, "{byte:02x}");
|
|
}
|
|
out
|
|
}
|
|
|
|
pub(crate) fn align_up(value: u64, align: u64) -> u64 {
|
|
if align == 0 {
|
|
return value;
|
|
}
|
|
(value + align - 1) & !(align - 1)
|
|
}
|
|
|
|
pub(crate) fn align_down(value: u64, align: u64) -> u64 {
|
|
if align == 0 {
|
|
return value;
|
|
}
|
|
value & !(align - 1)
|
|
}
|
|
|
|
pub(crate) fn add_i64(base: u64, addend: i64) -> u64 {
|
|
if addend >= 0 {
|
|
base.wrapping_add(addend as u64)
|
|
} else {
|
|
base.wrapping_sub((-addend) as u64)
|
|
}
|
|
}
|
|
|
|
pub(crate) fn as_usize(value: u64) -> Result<usize, VmError> {
|
|
usize::try_from(value).map_err(|_| VmError::IntegerOverflow(value))
|
|
}
|