rs-dos/rsnix/src/rtc.rs, branch qemu
Simple, kernel-only, 64bit OS, early stage.
https://git.2137697.xyz/rs-dos/atom?h=qemu
2026-07-31T14:10:40Z
rtc + pci: CMOS clock with date command, PCI bus enumeration
2026-07-31T14:10:40Z
salmonik
salmonik@tuta.io
2026-07-31T14:10:40Z
urn:sha1:8b1c1a23382806fcdbd3dbc7336a6ac2da8a995b
- rtc.rs: read the PC RTC via CMOS ports 0x70/0x71 (UIP wait, BCD/12h
normalization, century sanity-check with 2000+ fallback); boot prints
the wall clock, shell gains 'date'
- pci.rs: legacy config-space access (0xCF8/0xCFC) with full enumeration
of buses 0-255; boot reports device count, shell gains 'pci' (lspci
style listing with class names)
- QEMU q35 verified: Q35 host bridge, stdvga, e1000, ICH9 LPC