new OS

2025-10-13 21:25:07 -07:00 · 2025-04-30 23:03:44 -07:00
parent a464e109cb
commit ecfa54e225
30 changed files with 584 additions and 1191 deletions
--- a/kernel/io.h
+++ b/kernel/io.h
@@ -0,0 +1,14 @@
+#ifndef IO_H
+#define IO_H
+
+static inline void outb(uint16_t port, uint8_t val) {
+    asm volatile ("outb %0, %1" : : "a"(val), "Nd"(port));
+}
+
+static inline uint8_t inb(uint16_t port) {
+    uint8_t ret;
+    asm volatile ("inb %1, %0" : "=a"(ret) : "Nd"(port));
+    return ret;
+}
+
+#endif