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jit: execute mmio reads at full size

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This commit is contained in:
Fabian 2022-09-13 16:40:01 +09:00
parent 86fc542352
commit b961703fe4
1 changed files with 23 additions and 4 deletions
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27
src/rust/cpu/cpu.rs
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@ -3307,11 +3307,30 @@ pub unsafe fn safe_read_slow_jit(addr: i32, bitsize: i32, start_eip: i32, is_wri
((scratch as i32) ^ addr) & !0xFFF
}
else if in_mapped_range(addr_low) {
let scratch = jit_paging_scratch_buffer.0.as_mut_ptr() as u32;
dbg_assert!(scratch & 0xFFF == 0);
let scratch = jit_paging_scratch_buffer.0.as_mut_ptr();
for s in addr_low..(addr_low + bitsize as u32 / 8) {
*(scratch as *mut u8).offset((s & 0xFFF) as isize) = read8(s) as u8
match bitsize {
128 => {
*(scratch.offset(addr_low as isize & 0xFFF) as *mut reg128) =
memory::read128(addr_low)
},
64 => {
*(scratch.offset(addr_low as isize & 0xFFF) as *mut i64) = memory::read64s(addr_low)
},
32 => {
*(scratch.offset(addr_low as isize & 0xFFF) as *mut i32) = memory::read32s(addr_low)
},
16 => {
*(scratch.offset(addr_low as isize & 0xFFF) as *mut u16) =
memory::read16(addr_low) as u16
},
8 => {
*(scratch.offset(addr_low as isize & 0xFFF) as *mut u8) =
memory::read8(addr_low) as u8
},
_ => {
dbg_assert!(false);
},
}
((scratch as i32) ^ addr) & !0xFFF