diff options
| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1997-04-16 17:33:04 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1997-04-16 17:33:04 +0000 |
| commit | f9b93da8b47ff7ea4d6573b75b6077f6efb8dbc6 (patch) | |
| tree | 46e2747b2b8f04d36d530daad59481f4f79e3c00 /c/src/lib/libcpu/m68k/m68040/fpsp/x_bsun.s | |
| parent | Added --disable-tcpip option. (diff) | |
| download | rtems-f9b93da8b47ff7ea4d6573b75b6077f6efb8dbc6.tar.bz2 | |
Added the MC68040 Floating Point Support Package. This was ported
to RTEMS by Eric Norum. It is freely distributable and was acquired
from the Motorola WWW site. More info is in the FPSP README.
Diffstat (limited to 'c/src/lib/libcpu/m68k/m68040/fpsp/x_bsun.s')
| -rw-r--r-- | c/src/lib/libcpu/m68k/m68040/fpsp/x_bsun.s | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/m68k/m68040/fpsp/x_bsun.s b/c/src/lib/libcpu/m68k/m68040/fpsp/x_bsun.s new file mode 100644 index 0000000000..c5094f0159 --- /dev/null +++ b/c/src/lib/libcpu/m68k/m68040/fpsp/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 +// + +// Copyright (C) Motorola, Inc. 1990 +// All Rights Reserved +// +// THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF MOTOROLA +// The copyright notice above does not evidence any +// actual or intended publication of such source code.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.defs" + + |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 |