-#define FPESTART 0x2000L
-#define FPEEND 0x8000L
-#define FPEOLDVECT FPESTART + 0x100L + 8L * 16L + 4L /* stack + 8 regs + fpsr */
-#define FPENEWVECT(addr) 0xea000000L + ((addr) >> 2) - 3L /* branch from 4 to 0x2400 */
-extern unsigned long fpecode[] ;
-extern unsigned long fpesize ;
+#define SWI_Breakpoint 0x180000 /* See gdb's tm-arm.h */
+
+#define AngelSWI_ARM 0x123456
+#define AngelSWI_Thumb 0xAB
+
+/* The reason codes: */
+#define AngelSWI_Reason_Open 0x01
+#define AngelSWI_Reason_Close 0x02
+#define AngelSWI_Reason_WriteC 0x03
+#define AngelSWI_Reason_Write0 0x04
+#define AngelSWI_Reason_Write 0x05
+#define AngelSWI_Reason_Read 0x06
+#define AngelSWI_Reason_ReadC 0x07
+#define AngelSWI_Reason_IsTTY 0x09
+#define AngelSWI_Reason_Seek 0x0A
+#define AngelSWI_Reason_FLen 0x0C
+#define AngelSWI_Reason_TmpNam 0x0D
+#define AngelSWI_Reason_Remove 0x0E
+#define AngelSWI_Reason_Rename 0x0F
+#define AngelSWI_Reason_Clock 0x10
+#define AngelSWI_Reason_Time 0x11
+#define AngelSWI_Reason_System 0x12
+#define AngelSWI_Reason_Errno 0x13
+#define AngelSWI_Reason_GetCmdLine 0x15
+#define AngelSWI_Reason_HeapInfo 0x16
+#define AngelSWI_Reason_EnterSVC 0x17
+#define AngelSWI_Reason_ReportException 0x18
+#define ADP_Stopped_ApplicationExit ((2 << 16) + 38)
+#define ADP_Stopped_RunTimeError ((2 << 16) + 35)
+
+/* Floating Point Emulator address space. */
+#define FPESTART 0x2000L
+#define FPEEND 0x8000L
+#define FPEOLDVECT FPESTART + 0x100L + 8L * 16L + 4L /* Stack + 8 regs + fpsr. */
+#define FPENEWVECT(addr) 0xea000000L + ((addr) >> 2) - 3L /* Branch from 4 to 0x2400. */
+
+extern unsigned long fpecode[];
+extern unsigned long fpesize;
+
+extern int SWI_vector_installed;