1 files changed, 47 insertions, 0 deletions

diff --git a/arch/m68k/fpsp040/x_bsun.S b/arch/m68k/fpsp040/x_bsun.S
new file mode 100644
index 000000000000..039247b09c8b
--- /dev/null
+++ b/arch/m68k/fpsp040/x_bsun.S
@@ -0,0 +1,47 @@
+|
+|       x_bsun.sa 3.3 7/1/91
+|
+|       fpsp_bsun --- FPSP handler for branch/set on unordered exception
+|
+|       Copy the PC to FPIAR to maintain 881/882 compatibility
+|
+|       The real_bsun handler will need to perform further corrective
+|       measures as outlined in the 040 User's Manual on pages
+|       9-41f, section 9.8.3.
+|
+
+|               Copyright (C) Motorola, Inc. 1990
+|                       All Rights Reserved
+|
+|       THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF MOTOROLA
+|       The copyright notice above does not evidence any
+|       actual or intended publication of such source code.
+
+X_BSUN: |idnt    2,1 | Motorola 040 Floating Point Software Package
+
+        |section        8
+
+#include "fpsp.h"
+
+        |xref   real_bsun
+
+        .global fpsp_bsun
+fpsp_bsun:
+|
+        link            %a6,#-LOCAL_SIZE
+        fsave           -(%a7)
+        moveml          %d0-%d1/%a0-%a1,USER_DA(%a6)
+        fmovemx %fp0-%fp3,USER_FP0(%a6)
+        fmoveml %fpcr/%fpsr/%fpiar,USER_FPCR(%a6)
+
+|
+        movel           EXC_PC(%a6),USER_FPIAR(%a6)
+|
+        moveml          USER_DA(%a6),%d0-%d1/%a0-%a1
+        fmovemx USER_FP0(%a6),%fp0-%fp3
+        fmoveml USER_FPCR(%a6),%fpcr/%fpsr/%fpiar
+        frestore        (%a7)+
+        unlk            %a6
+        bral            real_bsun
+|
+        |end