boot: prompt retry to load polio.com

2025-09-29 17:47:34 +02:00
parent 05d5e5413f
commit 8a06693456
1 changed files with 6 additions and 2 deletions
--- a/fat12boot.c
+++ b/fat12boot.c
@@ -47,8 +47,12 @@ static void loadpolmon() {
        die("fi");
    }

-    if (fat12_readfile("POLMON  COM", kPolmonAddress)) {
-        die("pnf");
+    while (fat12_readfile("POLIO   COM", kPolmonAddress)) {
+        asm volatile (
+                "mov $00, %%ah      \n\t"
+                "int $0x16          \n\t"
+                ::: "ax"
+                );
    }

    jump(kPolmonAddress);