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authorAnton Altaparmakov <aia21@cantab.net>2006-03-23 14:50:51 +0000
committerAnton Altaparmakov <aia21@cantab.net>2006-03-23 14:50:51 +0000
commitb4d8d1a93c6ea042b29bb66fbb1cf6bc556c18f7 (patch)
tree030ef62361042d1a034087ad9a726db3b57bba72 /arch/sparc64/math-emu/math.c
parentbb8047d3540affd6b8c2adac3fe792e07143be0f (diff)
parent2e6e33bab6e1996a5dec9108fb467b52b841e7a8 (diff)
downloadop-kernel-dev-b4d8d1a93c6ea042b29bb66fbb1cf6bc556c18f7.zip
op-kernel-dev-b4d8d1a93c6ea042b29bb66fbb1cf6bc556c18f7.tar.gz
Merge branch 'master' of /usr/src/ntfs-2.6/
Diffstat (limited to 'arch/sparc64/math-emu/math.c')
-rw-r--r--arch/sparc64/math-emu/math.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/arch/sparc64/math-emu/math.c b/arch/sparc64/math-emu/math.c
index 2ae05cd..6ee496c 100644
--- a/arch/sparc64/math-emu/math.c
+++ b/arch/sparc64/math-emu/math.c
@@ -206,9 +206,29 @@ int do_mathemu(struct pt_regs *regs, struct fpustate *f)
case FSTOQ: TYPE(3,3,1,1,1,0,0); break;
case FDTOQ: TYPE(3,3,1,2,1,0,0); break;
case FQTOI: TYPE(3,1,0,3,1,0,0); break;
+
+ /* We can get either unimplemented or unfinished
+ * for these cases. Pre-Niagara systems generate
+ * unfinished fpop for SUBNORMAL cases, and Niagara
+ * always gives unimplemented fpop for fsqrt{s,d}.
+ */
+ case FSQRTS: {
+ unsigned long x = current_thread_info()->xfsr[0];
+
+ x = (x >> 14) & 0xf;
+ TYPE(x,1,1,1,1,0,0);
+ break;
+ }
+
+ case FSQRTD: {
+ unsigned long x = current_thread_info()->xfsr[0];
+
+ x = (x >> 14) & 0xf;
+ TYPE(x,2,1,2,1,0,0);
+ break;
+ }
+
/* SUBNORMAL - ftt == 2 */
- case FSQRTS: TYPE(2,1,1,1,1,0,0); break;
- case FSQRTD: TYPE(2,2,1,2,1,0,0); break;
case FADDD:
case FSUBD:
case FMULD:
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