summaryrefslogtreecommitdiffstats
path: root/arch/m68k/fpsp040/x_bsun.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/fpsp040/x_bsun.S')
-rw-r--r--arch/m68k/fpsp040/x_bsun.S46
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/m68k/fpsp040/x_bsun.S b/arch/m68k/fpsp040/x_bsun.S
new file mode 100644
index 0000000000..d5a576bfac
--- /dev/null
+++ b/arch/m68k/fpsp040/x_bsun.S
@@ -0,0 +1,46 @@
+|
+| 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
+|
+| For details on the license for this file, please see the
+| file, README, in this same directory.
+
+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