Hello UEFI!

2026-05-09 20:07:36 +08:00
parent 112b1b8d08
commit 06fd67c1d2
3 changed files with 43 additions and 0 deletions
@@ -0,0 +1,22 @@
+#define ull unsigned long long
+
+struct EFI_SYSTEM_TABLE {
+    char _buf[60];
+    struct EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL {
+        ull _buf;
+        ull (*OutputString)(
+            struct EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
+            unsigned short *String);
+        ull _buf2[4];
+        ull (*ClearScreen)(
+             struct EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This);
+    } *ConOut;
+};
+  
+void efi_main(void *ImageHandle __attribute__ ((unused)), struct EFI_SYSTEM_TABLE *SystemTable)
+{
+    SystemTable->ConOut->ClearScreen(SystemTable->ConOut);
+    SystemTable->ConOut->OutputString(SystemTable->ConOut, L"Hello UEFI!\n");
+    while (1);
+}
+