commit fad2da831d14ae49a6368ece19b8b6a967a773e9
author Kevin O'Connor <kevin@koconnor.net> Sat Mar 22 20:37:44 2008 -0400
committer Kevin O'Connor <kevin@koconnor.net> Sat Mar 22 20:37:44 2008 -0400
tree 346629a2d23f5da59094927515b82013be46a6c7
parent dfa165052c4eca5d90ecf9e44803791f428a4068

Fix disk_1301 handler.

regs->ah was getting clobbered in call to disk_ret().

src/disk.c

diff --git a/src/disk.c b/src/disk.c
index 74c49bf..152315e 100644
--- a/src/disk.c
+++ b/src/disk.c
@@ -142,7 +142,8 @@
                            , MAKE_32_PTR(segment, offset), before*512);
     irq_disable();
     if (status != 0) {
-        BX_INFO("int13_harddisk: function %02x, error %02x !\n",regs->ah,status);
+        BX_INFO("int13_harddisk: function %02x, error %02x !\n"
+                , regs->ah, status);
         regs->al = 0;
         disk_ret(regs, DISK_RET_EBADTRACK);
     }
@@ -222,8 +223,10 @@
 static void
 disk_1301(struct bregs *regs, u8 device)
 {
-    regs->ah = GET_BDA(disk_last_status);
-    disk_ret(regs, DISK_RET_SUCCESS);
+    u8 v = GET_BDA(disk_last_status);
+    regs->ah = v;
+    set_cf(regs, v);
+    // XXX - clear disk_last_status?
 }
 
 // read disk sectors