Changeset 76857d1 in mainline

Timestamp:

2005-07-20T14:59:30Z (19 years ago)

Author:

Jakub Vana <jakub.vana@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b4f9214

Parents:

b5eb1ee

Message:

Comments

File:

• arch/ia32/src/asm.S (modified) (3 diffs)

arch/ia32/src/asm.S

@@ -29 +29 @@
 ## very low and hardware-level functions
 
+#  Mask for interrupts 0 - 31 (bits 0 - 31) where 0 means that int has no error word
+# and 1 means interrupt with error word
 #define ERROR_WORD_INTERRUPT_LIST 0x00027D00
 
@@ -114 +116 @@
         pop %ds
 
+
+# Test if this is interrupt with error word or not
         mov $\i,%cl;
         movl $1,%eax;
@@ -123 +127 @@
         jz 0f;
 
+
+# Return with error word
         popa;
         pop %ebp;
-        add $4,%esp;
+        add $4,%esp;    # Skip error word
         iret;
 
 0:
-
+# Return with no error word
         popa
         pop %ebp