0xrsydn/gameboy-rust
1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(serial): support disconnected Joybus configuration and local registers

Browse source
This commit is contained in:
0xrsydn 2026-10-07 06:36:54 +07:00
commit 7546d17630
15 changed files with 462 additions and 62 deletions
Download patch file Download diff file Expand all files Collapse all files

10
crates/gba-core/tests/inactive_devices.rs
View file

@ -2,10 +2,7 @@
use gba_core::{
cpu::Cpu,
dma::DMA_BASE,
io::{
JOYCNT, JOY_RECV, RCNT, SIOCNT, SIODATA32, SIODATA8, SOUNDBIAS, SOUNDCNT_H, SOUNDCNT_X,
WAVE_RAM,
},
io::{JOYCNT, RCNT, SIOCNT, SIODATA32, SIODATA8, SOUNDBIAS, SOUNDCNT_H, SOUNDCNT_X, WAVE_RAM},
machine::Machine,
memory::{Memory, MemoryError, ROM_START},
};
@ -81,10 +78,7 @@ fn unsupported_operations_have_specific_retryable_diagnostics() {
let mut bus = memory();
for (address, value, description) in [
(SIOCNT + 1, 0x30, "UART serial mode"),
(RCNT + 1, 0xc0, "Joybus serial mode"),
(RCNT + 1, 0x81, "GPIO serial interrupt"),
(JOYCNT, 0x40, "Joybus interrupt"),
(JOY_RECV, 1, "Joybus data access"),
] {
let error = bus.write8(address, value).unwrap_err();
assert!(matches!(error, MemoryError::UnsupportedIo { .. }));
@ -92,7 +86,7 @@ fn unsupported_operations_have_specific_retryable_diagnostics() {
assert_eq!(bus.write8(address, value), Err(error));
}
bus.write16(RCNT, 0x8055).unwrap();
assert!(bus.write16(RCNT, 0xc0aa).is_err());
assert!(bus.write16(RCNT, 0x81aa).is_err());
assert_eq!(bus.read16(RCNT).unwrap(), 0x805f); // Low byte was not committed.
bus.write16(SIOCNT, 0x4008).unwrap();
assert!(bus.write32(SIOCNT, 0xaabb3080).is_err());