[feat] 100Hz task switch

2026-05-31 18:35:25 +08:00
parent 4ff227bc75
commit daccb0a763
16 changed files with 1172 additions and 36 deletions
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <efi.h>
+
+// 8259 PIC ports
+#define PIC1_CMD    0x20
+#define PIC1_DATA   0x21
+#define PIC2_CMD    0xA0
+#define PIC2_DATA   0xA1
+
+// PIC vectors
+#define PIC_IRQ_BASE 0x20  // IRQ 0 mapped to vector 0x20 (32)
+
+// EOI signal
+#define PIC_EOI     0x20
+
+void pic_init(void);
+void pic_send_eoi(UINT8 irq);
+void pic_mask_irq(UINT8 irq);
+void pic_unmask_irq(UINT8 irq);