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ppc: Implement bcdsr. instruction

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bcdsr.: Decimal shift and round. This instruction works like bcds.
however, when performing right shift, 1 will be added to the
result if the last digit was >= 5.

Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Jose Ricardo Ziviani 2017-01-10 00:10:12 -02:00 • committed by David Gibson
parent a49a95e9e4
commit a54238adac
4 changed files with 52 additions and 0 deletions
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target/ppc/helper.h
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@ -395,6 +395,7 @@ DEF_HELPER_4(bcdcpsgn, i32, avr, avr, avr, i32)
DEF_HELPER_3(bcdsetsgn, i32, avr, avr, i32)
DEF_HELPER_4(bcds, i32, avr, avr, avr, i32)
DEF_HELPER_4(bcdus, i32, avr, avr, avr, i32)
DEF_HELPER_4(bcdsr, i32, avr, avr, avr, i32)
DEF_HELPER_2(xsadddp, void, env, i32)
DEF_HELPER_2(xsaddqp, void, env, i32)