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-rw-r--r--core/pxe.inc8
1 files changed, 8 insertions, 0 deletions
diff --git a/core/pxe.inc b/core/pxe.inc
index 2fd1edb7..9b46bb67 100644
--- a/core/pxe.inc
+++ b/core/pxe.inc
@@ -152,4 +152,12 @@
%define PXENV_STATUS_LOADER_UNDI_START 0xca
%define PXENV_STATUS_LOADER_BC_START 0xcb
+; UNDI ISR codes
+%define PXENV_UNDI_ISR_IN_START 1
+%define PXENV_UNDI_ISR_IN_PROCESS 2
+%define PXENV_UNDI_ISR_IN_GET_NEXT 3
+
+%define PXENV_UNDI_ISR_OUT_OURS 0
+%define PXENV_UNDI_ISR_OUT_NOT_OURS 1
+
%endif ; _PXE_INC