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Implement suggestion from is -- handle _fpfault differently for 040 and better.

This commit is contained in:
briggs 1996-06-09 01:53:42 +00:00
parent 721a11bff8
commit 2b220a1581
1 changed files with 5 additions and 1 deletions
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6
sys/arch/mac68k/mac68k/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.63 1996/05/17 02:11:47 briggs Exp $ */ /* $NetBSD: locore.s,v 1.64 1996/06/09 01:53:42 briggs Exp $ */
/* /*
* Copyright (c) 1988 University of Utah. * Copyright (c) 1988 University of Utah.
@ -312,6 +312,10 @@ _fpfault:
movl _curpcb,a0 | current pcb movl _curpcb,a0 | current pcb
lea a0@(PCB_FPCTX),a0 | address of FP savearea lea a0@(PCB_FPCTX),a0 | address of FP savearea
fsave a0@ | save state fsave a0@ | save state
#if defined(M68040) || defined(M68040)
cmpl #MMU_68040, _mmutype | if 68040, (060 ha!), etc...
jle Lfptnull
#endif
tstb a0@ | null state frame? tstb a0@ | null state frame?
jeq Lfptnull | yes, safe jeq Lfptnull | yes, safe
clrw d0 | no, need to tweak BIU clrw d0 | no, need to tweak BIU