From 8b1c1a23382806fcdbd3dbc7336a6ac2da8a995b Mon Sep 17 00:00:00 2001
From: salmonik <salmonik@tuta.io>
Date: Fri, 31 Jul 2026 16:10:40 +0200
Subject: rtc + pci: CMOS clock with date command, PCI bus enumeration

- 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
---
 rsdos/src/main.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'rsdos/src')

diff --git a/rsdos/src/main.rs b/rsdos/src/main.rs
index d9578e2..c35d88f 100644
--- a/rsdos/src/main.rs
+++ b/rsdos/src/main.rs
@@ -141,6 +141,19 @@ pub extern "efiapi" fn efi_main(image_handle: Handle, system_table: *mut SystemT
         rsnix::serial_println!("pg: self-test FAILED");
     }
 
+    let t = rsnix::rtc::now();
+    rsnix::serial_println!(
+        "rtc: {}-{:02}-{:02} {:02}:{:02}:{:02}",
+        t.year,
+        t.month,
+        t.day,
+        t.hour,
+        t.minute,
+        t.second
+    );
+    let devices = rsnix::pci::probe();
+    rsnix::serial_println!("pci: {} device(s) on all buses", devices.len());
+
     rsnix::serial_println!("boot: entering shell");
     shell::run();
 }
-- 
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