Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

protect doubleword register from interrupt.

This commit is contained in:
shin 2000-08-06 12:30:36 +00:00
parent e3cdb47e47
commit f0803f8192
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/arch/mips/mips/locore_mips3.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: locore_mips3.S,v 1.44 2000/08/01 23:38:26 jeffs Exp $ */
/* $NetBSD: locore_mips3.S,v 1.45 2000/08/06 12:30:36 shin Exp $ */
/*
* Copyright (c) 1997 Jonathan Stone (hereinafter referred to as the author)
@ -2499,12 +2499,17 @@ LEAF(mips3_write_compare)
END(mips3_write_compare)
LEAF(mips3_write_xcontext_upper)
mfc0 v1, MIPS_COP_0_STATUS # save status register
mtc0 zero, MIPS_COP_0_STATUS # disable interrupts
nop
nop
nop
dsll a0, 32
dmtc0 a0, MIPS_COP_0_TLB_XCONTEXT # Store segment map for access
nop
nop
j ra
nop
mtc0 v1, MIPS_COP_0_STATUS # restore status register
END(mips3_write_xcontext_upper)
/*