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target-ppc: implement stxvll instructions

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stxvll: Store VSX Vector Left-justified with Length

Vector (8-bit elements) in BE/LE:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|00|00|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+

Storing 14 bytes would result in following Little/Big-endian Storage:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|FF|FF|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Nikunj A Dadhania 2016-12-09 17:47:23 +05:30 • committed by David Gibson
parent 681c247833
commit e122090df3
4 changed files with 4 additions and 0 deletions
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1
target/ppc/helper.h
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@ -316,6 +316,7 @@ DEF_HELPER_3(stvewx, void, env, avr, tl)
DEF_HELPER_4(lxvl, void, env, tl, tl, tl)
DEF_HELPER_4(lxvll, void, env, tl, tl, tl)
DEF_HELPER_4(stxvl, void, env, tl, tl, tl)
DEF_HELPER_4(stxvll, void, env, tl, tl, tl)
#endif
DEF_HELPER_4(vsumsws, void, env, avr, avr, avr)
DEF_HELPER_4(vsum2sws, void, env, avr, avr, avr)