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use crate::mem::CpuMemory;
pub struct CpuState {
pub memory: CpuMemory,
pub registers: [u32; 32],
pub f_registers: [f32; 32],
pub csr: [u32; 4096],
pub pc: u32,
pub reserved_addr: Option<usize>,
}
impl CpuState {
pub fn new(memory: CpuMemory) -> CpuState {
CpuState {
memory,
registers: [0u32; 32],
f_registers: [0f32; 32],
csr: [0u32; 4096],
pc: 0,
reserved_addr: None,
}
}
pub fn is_addr_reserved(&self, addr: usize) -> bool {
if let Some(reservation) = self.reserved_addr
&& (reservation..reservation + 4).contains(&addr)
{
return true
}
false
}
pub fn release_reservations(&mut self, indices: &[usize]) {
if let Some(addr) = self.reserved_addr {
for index in indices {
if (addr..addr + 4).contains(index) {
self.reserved_addr = None;
return;
}
}
}
}
pub fn acquire_reservations(&mut self, addr: usize) {
self.reserved_addr = Some(addr);
}
}
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