fixed some paging bugs, added fault handlers and new programs

1 files changed, 11 insertions, 4 deletions

diff --git a/src/kernel/fat.c b/src/kernel/fat.c
index c297cab..c4461de 100644
--- a/src/kernel/fat.c
+++ b/src/kernel/fat.c
@@ -119,10 +119,17 @@ static const uint8_t this_dir[]   = {'.', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '
 static const uint8_t parent_dir[] = {'.', '.', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
 
 static inline bool check_fat_names(const uint8_t *a, const uint8_t *b) {
-  return (((uint32_t *)a)[0] == ((uint32_t *)b)[0]) &&
-         (((uint32_t *)a)[1] == ((uint32_t *)b)[1]) &&
-         (((uint16_t *)a)[4] == ((uint16_t *)b)[4]) &&
-         (((uint8_t *)a)[10] == ((uint8_t *)b)[10]);
+  for (uint8_t i = 0; i < 11; ++i) {
+    uint8_t ac = a[i];
+    uint8_t bc = b[i];
+    if ((ac >= 0x61) && (ac <= 0x7a))
+      ac &= ~0x20;
+    if ((bc >= 0x61) && (bc <= 0x7a))
+      bc &= ~0x20;
+    if (ac != bc)
+      return false;
+  }
+  return true;
 }
 
 //after: cur_dir -> specified entry in root