1 files changed, 19 insertions, 0 deletions
diff --git a/hw/pcnet.h b/hw/pcnet.h
index cd86bde..52cc52e 100644
--- a/hw/pcnet.h
+++ b/hw/pcnet.h
@@ -6,6 +6,25 @@
 
 #include "memory.h"
 
+/* BUS CONFIGURATION REGISTERS */
+#define BCR_MSRDA    0
+#define BCR_MSWRA    1
+#define BCR_MC       2
+#define BCR_LNKST    4
+#define BCR_LED1     5
+#define BCR_LED2     6
+#define BCR_LED3     7
+#define BCR_FDC      9
+#define BCR_BSBC     18
+#define BCR_EECAS    19
+#define BCR_SWS      20
+#define BCR_PLAT     22
+
+#define BCR_APROMWE(S)   !!((S)->bcr[BCR_MC  ] & 0x0100)
+#define BCR_DWIO(S)      !!((S)->bcr[BCR_BSBC] & 0x0080)
+#define BCR_SSIZE32(S)   !!((S)->bcr[BCR_SWS ] & 0x0100)
+#define BCR_SWSTYLE(S)     ((S)->bcr[BCR_SWS ] & 0x00FF)
+
 typedef struct PCNetState_st PCNetState;
 
 struct PCNetState_st {